diff options
14 files changed, 882 insertions, 866 deletions
diff --git a/guides/setups/operating-systems/bunsenlabs.org b/guides/setups/operating-systems/bunsenlabs.org deleted file mode 100644 index 578bcbe..0000000 --- a/guides/setups/operating-systems/bunsenlabs.org +++ /dev/null @@ -1,39 +0,0 @@ -* Keyboard -Cf. keyboard(5): - -- add =ctrl:nocaps= in =/etc/default/keyboard= -- run =udevadm trigger --subsystem-match=input --action=change= -- run =setupcon= in a TTY - -* Desktop -** Conky -- see dotfiles - -** ClipIt -- disable hotkeys - -** Openbox -*** =rc.xml= -- comment A-m and A-r out -- undecorate all windows: - -#+begin_src xml -<application class="*"> - <decor>no</decor> -</application> -#+end_src - -*** WM preferences -- appearance: uncheck "windows retain a border when undecorated" -- desktops: 4 - -** tint2 -- remove launcher and exit panel items -- add date (time2) - -** Calendar -Make weeks begin on Monday by using the British locale: - -- uncomment =en_GB.UTF-8 UTF-8= in /etc/locale.gen -- =sudo locale-gen= -- =force_lang = en_GB.utf8= in =~/.config/gsimplecal/config= diff --git a/guides/setups/operating-systems/debian.org b/guides/setups/operating-systems/debian.org deleted file mode 100644 index 21aff43..0000000 --- a/guides/setups/operating-systems/debian.org +++ /dev/null @@ -1,676 +0,0 @@ -* Installation -** Step-by-step recap (Bullseye) -*** Setup keyboard -Turn CapsLock key into Control (cf. keyboard(5)): -- add =ctrl:nocaps= to =XKBOPTIONS= in =/etc/default/keyboard= -- run =udevadm trigger --subsystem-match=input --action=change= -- run =setupcon= in a TTY -*** Install stuff -**** Distro-provided packages -#+begin_src sh -packages=( - # To clone & update dotfiles. - git - # Look & feel. - elementary-xfce-icon-theme greybird-gtk-theme - # Enable volume management with Thunar. - gvfs-backends gvfs-fuse - # System monitoring. - htop powertop wavemon - # Documentation: - # - info pages, - gcc-doc make-doc tar-doc info - # - manpages, - manpages-dev manpages-posix manpages-posix-dev - # - text & HTML pages. - git-doc python3-doc - # Writing helpers. - aspell-fr verbiste wordnet - # CLI helpers. - mlocate ripgrep vim - # Fonts. - fonts-noto-color-emoji - # Miscellaneous applications. - ffmpeg gimp pandoc terminator vlc -) -sudo apt install ${packages[@]} -#+end_src -**** Latest and greatest -***** Firefox -- download most recent release from from <https://www.mozilla.org> -- unpack it =$SOMEWHERE= -- make sure everyone can find it: - -#+begin_src sh -$ sudo update-alternatives --install $(which x-www-browser) x-www-browser \ - ${SOMEWHERE}/firefox/firefox 1 -$ sudo update-alternatives --set x-www-browser ${SOMEWHERE}/firefox/firefox -$ ln -s ${SOMEWHERE}/firefox/firefox ~/.local/bin/ -#+end_src - -- paste backuped profile into =~/.mozilla/firefox/${profile}= -***** Symbola -- grab the archive from <http://users.teilar.gr/~g1951d/> -- drop the TTF files in =~/.local/share/fonts= -- run =fc-cache -fv= -***** youtube-dl -#+begin_src sh -$ sudo apt install python3-pip -$ pip3 install --user youtube-dl -#+end_src -*** Setup dotfiles -**** Clone versioned dotfiles -- create new SSH key for GitLab -- follow instructions in dotfiles README -**** Tweak non-versioned dotfiles -- set EMAIL in =.profile= -- add =~/.local/bin= to PATH -- copy =.profile= to =.xsessionrc= -- in =.bashrc= - - enable globstar and autocd - - uncomment grep and ls aliases - - source =~/.bash_prompt= -*** Setup Emacs -- clone from Savannah -- =apt build-dep emacs= -- =apt install libgconf2-dev libwebkit2gtk-4.0-dev= - (optional build dependencies for ≥27) -- comment out .emacs below =(load custom-file)= -#+begin_src elisp -(package-refresh-contents) -(package-install-selected-packages) -#+end_src -*** Setup XFCE -**** Appearance -***** Style -Greybird-dark -***** Icons -elementary Xfce darker -***** Fonts -- Rendering - - [X] Enable anti-aliasing - - Hinting: Slight - - Sub-pixel order: RGB (trusting the [[http://www.lagom.nl/lcd-test/subpixel.php][Lagom LCD test pages]]) -**** File Manager -***** View -- Side Pane: Tree -- View as Detailed List -**** Panel -***** Top panel -****** Items -******* Whisker Menu -******* Window Buttons -******* Separator -******* Workspace Switcher -******* Separator -******* Status Tray Plugin -******* PulseAudio Plugin -******* Power Manager Plugin -- Show label: None -******* Notification Plugin -******* Separator -******* Clock -***** Bottom panel -Delete. -**** Window Manager -***** Keyboard -- Move window to previous workspace: Shift+Super+Left -- Move window to next workspace: Shift+Super+Right -- Tile window to the left: Super+Left -- Tile window to the right: Super+Right -- Show desktop: Super+D -**** Window Manager Tweaks -***** Accessibility -- [X] Hide title of windows when maximized -***** Compositor -- [ ] Show shadows under… -**** Terminal -***** General -- Scrolling - - [ ] Scroll on output - - Scrollbar is: Disabled - - [X] Unlimited scrollback -***** Appearance -- Font - - [X] Use system font -- Opening New Windows - - [ ] Display menubar in new windows -***** Advanced -- Shortcuts - - [X] Disable all menu access keys (such as Alt+f) /for readline/ - - [X] Disable menu shortcut key (F10 by default) /for htop & - wavemon/ - - [X] Disable help window shortcut key (F1 by default) /for htop & - wavemon/ -- Misc - - [X] Automatically copy selection to clipboard -**** Keyboard -***** Application shortcuts -- emacs: Super+E -- exo-open --launch FileManager: Super+F -- exo-open --launch TerminalEmulator: Super+T -- exo-open --launch WebBrowser: Super+W -- xfce4-popup-whiskermenu: Alt+F1 -- xfce4-screenshooter: Print -- xfce4-screenshooter --fullscreen: Shift+Print -- xfce4-screenshooter --region: Control+Print -- xfce4-screenshooter --window: Super+Print -- xfce4-session-logout: Super+X -- xflock4: Super+L -**** Mouse and Touchpad -***** Devices -- =… Touchpad= - - Touchpad - - [X] Tap touchpad to click -**** Power Manager -***** System -- On battery / Plugged in - - When laptop lid is closed: Suspend -**** Removable Drives and Media -***** Storage -- [X] Mount removable drives when hot-plugged -- [X] Mount removable media when inserted - -*** Setup more stuff -**** lightdm -Show my account on startup: -#+begin_src conf -# /usr/share/lightdm/lightdm.conf.d/99_custom.conf -[Seat:*] -greeter-hide-users=false -#+end_src -**** system groups -#+begin_src sh -groups=( - adm # Access /var/log journals. - dialout # Sync my phone. -) -for g in ${groups[@]} -do - sudo adduser ${USER} ${g} -done -#+end_src -** Live reactions -*** Samsung NC10 (Buster) -**** installer -Touchpad is not recognized, for some reason. -**** first boot -#+BEGIN_QUOTE -A start job is running for Load AppArmor profiles -#+END_QUOTE -Disappeared after ≈30s 🤷 - -Wooh touchpad works! Although the sensitivity is a bit low. -*NB: solved below.* - -Wifi LED is on, whatever that means. - -Brightness function keys do not work on the login screen. - -Using default XFCE config to get four workspaces. - -Brightness and sound function keys work! 🙌 - -Touchpad click and scroll do not work. -*NB: solved below.* - -Wifi function key does not work. - -Battery life seems somewhat shorter than with Bunsenlabs, even after -applying all powertop tricks in the book. -**** apt install (1/n) -git greybird-gtk-theme elementary-xfce-icon-theme emacs - -git suggests git-doc: why of course, good idea! - -emacs suggests emacs-common-non-dfsg: right, what was that again? -Documentation, IIRC? What does APT have to say? - -#+BEGIN_EXAMPLE -$ apt show emacs-common-non-dfsg -Package: emacs-common-non-dfsg -State: not a real package (virtual) -N: Can't select candidate version from package emacs-common-non-dfsg as it has no candidate -N: Can't select versions from package 'emacs-common-non-dfsg' as it is purely virtual -N: No packages found -#+END_EXAMPLE - -… What does https://packages.debian.org/emacs-common-non-dfsg say? - -#+BEGIN_QUOTE -*[non-free]* -#+END_QUOTE - -[[https://www.debian.org/vote/2006/vote_001][Oh.]] Well then, - -#+begin_src sh -$ sudo sed -ri 's/^([^#].+ main)$/\1 contrib non-free/' /etc/apt/sources.list -$ # While in there… -$ sudo sed -ri 's/^(deb|deb-src) http:/\1 https:/' /etc/apt/sources.list -#+end_src - -What now? - -#+BEGIN_EXAMPLE -$ sudo apt update -[…] -Err:4 https://security.debian.org/debian-security buster/updates Release - Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. The name in the certificate does not match the expected. Could not handshake: Error in the certificate verification. [IP: 217.196.149.233 443] -[…] -E: The repository 'https://security.debian.org/debian-security buster/updates Release' no longer has a Release file. -N: Updating from such a repository can't be done securely, and is therefore disabled by default. -N: See apt-secure(8) manpage for repository creation and user configuration details. -#+END_EXAMPLE - -🤨 - -#+begin_src sh -$ sudo sed -ri 's/security\.debian\.org/deb.debian.org/' /etc/apt/sources.list -#+end_src - -[[https://wiki.debian.org/SourcesList#Example_sources.list][🤷]] - -**** tweak dotfiles -Set EMAIL in .profile; copy .profile to .xsessionrc (AFAICT XFCE does -not read ~/.config/environment.d) to get PATHs. - -In .bashrc, enable globstar and autocd, uncomment grep and ls aliases, -source personal .bash_prompt. - -Fun fact! git can guess user.email from $EMAIL and user.name from the -[[https://en.wikipedia.org/wiki/Gecos_field][GECOS field]]. -**** apt install (2/n) -#+BEGIN_QUOTE -E: Package 'gcc-doc' has no installation candidate -#+END_QUOTE -gcc-doc is only available in /backports/? -**** configure XFCE -***** Mouse and Touchpad -- Move sliders a bit to no avail, restore defaults. -- Google around. -- Why do my XFCE settings not have this "Touchpad" tab? -- apt install xserver-xorg-input-synaptics -- Log out and in again. -- Woah the pointer is much faster now. -- And the "Touchpad" tab is here now! -🎉 -***** Panels -Remove bottom panel: I'd rather remember a few Super-… shortcuts to -launch these applications rather than waste all this vertical space. -***** Appearance -****** Style -Greybird - -Patch the xfwm-tabwin style to prevent the mouse from screwing with -Alt-Tab: - -#+begin_src diff -diff -u /usr/share/themes/Greybird/gtk-2.0/gtkrc.bkp /usr/share/themes/Greybird/gtk-2.0/gtkrc ---- /usr/share/themes/Greybird/gtk-2.0/gtkrc.bkp -+++ /usr/share/themes/Greybird/gtk-2.0/gtkrc -@@ -897,8 +897,8 @@ - - bg[NORMAL] = shade (0.15, @text_color) - bg[ACTIVE] = shade (0.65, @selected_bg_color) -- bg[PRELIGHT] = shade (0.75, @selected_bg_color) -- bg[SELECTED] = shade (0.55, @bg_color) -+ bg[PRELIGHT] = shade (0.55, @bg_color) -+ bg[SELECTED] = shade (0.75, @selected_bg_color) - - fg[NORMAL] = shade (0.8, @base_color) - fg[ACTIVE] = @base_color -#+end_src -**** configure more stuff -***** lightdm -Debian [[https://wiki.debian.org/LightDM#Enable_user_list][hides the list of users]] on the login screen; Bunsenlabs [[https://github.com/BunsenLabs/bunsen-configs/blob/9.6-1/lightdm.conf.d/50_bunsen.conf][enables -it]] and I kind of like it (fewer keystrokes, and a cute avatar). -*** Dell 3190 (Buster) -**** groundwork -Using instructions from <https://wiki.debian.org/Firmware>. -***** Get netinst image from <https://www.debian.org/CD/netinst/> -***** Get firmware archive from <https://cdimage.debian.org/cdimage/unofficial/non-free/firmware/stable/current/> -So that the installer can use the wireless network card. Extract all -.deb files to a top-level =firmware= folder on a USB key. -***** Shrink the MS partition -Had to "optimize the disk", otherwise some free space remained -unavailable. -**** installer -Everything went smoothly: -- if the USB key holding the firmware isn't plugged in, the installer - requests it, otherwise it finds the firmware automatically; -- Secure Boot supported transparently; -- dual-booting too. -**** package repositories -Non-free repositories automatically added during the installation, -because of the WiFi firmware I presume. -**** kernel issues -***** i915/glk_dmc_ver1_04.bin -kern.log: -#+begin_quote -i915 0000:00:02.0: firmware: failed to load i915/glk_dmc_ver1_04.bin (-2) -#+end_quote -apt install firmware-misc-nonfree seems to quiet that down. -***** i2c_hid_get_input: incomplete report -kern.log: -#+begin_quote -i2c_hid i2c-MSFT0001:00: i2c_hid_get_input: incomplete report (14/65535) -#+end_quote -About one message for every half-second spent touching the touchpad. - -"Solved" with: -#+begin_src sh -$ apt install -t buster-backports \ - linux-image-amd64 \ - firmware-iwlwifi \ - firmware-misc-nonfree -#+end_src -* Maintenance -** upgrades -*** Bookworm -**** research -***** [[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#non-free-split][Release notes § Issues to be aware of]] -****** minutiae -- ~sed s/non-free/non-free-firmware/~ -- =youtube-dl= ⇒ =yt-dlp= -- clear =GRUB_DISABLE_OS_PROBER= -****** System logs ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#changes-to-system-logging][ref]]) -1. ~apt-mark auto rsyslog ; apt autoremove~ -2. double-check that journalctl config saves to persistent storage -3. finally learn ~journalctl~ -****** Reduced accessibility from GTK 3⇒4 transition ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#gnome-has-reduced-accessibility-support-for-screen-readers][ref]]) -Not a huge deal for me (though [[https://github.com/transmission/transmission/discussions/5065][other aspects]] of the transition are -irksome), but [[https://tech.lgbt/@xogium/110507457689374019][dang]]. -****** "Externally-managed" Python installation ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#python3-pep-668][ref]]) -1. inventory & clear out stuff installed with ~pip install --user~ -2. upgrade -3. install =pipx= -4. reinstall -****** VLC support for VA-API disabled ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#vlc-ffmpeg-5][ref]]) -- [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021601][Debian bug#1021601]] =vlc: VAAPI hardware acceleration no more available= -- [[https://code.videolan.org/videolan/vlc/-/issues/26772][VLC#26772]] =VAAPI is disabled with ffmpeg5 on vlc-3x= - - "we won't support full FFmpeg5 in 3.0" ([[https://code.videolan.org/videolan/vlc/-/issues/26772#note_316827][ref]]) -- [[https://code.videolan.org/videolan/vlc/-/merge_requests/1245][VLC!1245]] =[VLC3] Support FFmpeg 5.0 (except for VAAPI)= - - "it seems that the VAAPI part is far from trivial and requires - invasive changes (contrary to the other fixes)" ([[https://code.videolan.org/videolan/vlc/-/merge_requests/1245#note_302474][ref]]) -- user reports: [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021664][2022-10]], [[https://old.reddit.com/r/debian/comments/z5ectb/vlc_delaying_frames_on_a_fresh_debian_12_install/][2022-11]], [[https://old.reddit.com/r/debian/comments/119x7tr/debian_12_bookworm_no_hw_acceleration_in_vlc_h264/][2023-02]], [[https://old.reddit.com/r/debian/comments/14u38mm/video_choppy_in_vlc_but_not_totem/][2023-07]] - -No idea how much that will affect little =hirondell=. If push comes -to shove, I guess I can either -- build VLC 4, -- learn mpv. -****** systemd naming for Xen network interfaces ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#xen-network][ref]]) -=eth0= changes to =enX0=. No idea if my VPS is impacted or not; it -does have an interface named =eth0=, and that name also shows up in -=/etc/network/interfaces=. -****** Known severe bugs ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#rc-bugs][ref]]) -- [[https://bugs.debian.org/1036041][bug#1036041]]: =upgrade-reports: Dell XPS 9550 fails to boot after - bullseye to bookworm upgrade - grub/bios interaction bug?= -**** VPS -***** =/etc/cloud/cloud.cfg= -My local version has these two lines: -#+begin_src -mount_default_fields: [~, ~, 'auto', 'defaults,nofail', '0', '2'] -manage_etc_hosts: true -#+end_src -No idea if this is OVH-specific. No idea if I want them. Let's trust -"the package maintainer" 😐 -***** =/etc/ssh/sshd_config= -OK, note to self: *never* choose "do a 3-way merge". Thought that -would be something along the lines of Emacs's Ediff; instead… -#+begin_quote -Merging changes into the new version -#+end_quote -/Mind giving a couple more details on that "merge" mate?/ - -OK, - -- =/usr/share/openssh/sshd_config= has the new stock config, -- =/etc/ssh/sshd_config.ucf-old= has the /previous/ *local* config -- ~diff -u {/usr/shared/openssh,/etc/ssh}/sshd_config~ suggests that - the ✨magic merge✨ did TRT; the only differences are - - stuff I remember changing in (=PermitRootLogin=, - =PasswordAtuhentication=) - - a spurious whitespace-only hunk on =Subsystem sftp= (the - =/usr/share= version uses tabs; the =/etc= version ended up with a - single space) -***** Removing obsolete stuff -Erm, why does ~apt purge '~c'~ says -#+begin_quote -The following packages were automatically installed and are no longer required: -[…] nginx-core nginx-full […] -#+end_quote - -😨 - -#+begin_src -$ dpkg -S $(sudo which nginx) -nginx: /usr/sbin/nginx -$ apt depends nginx -[…] - Replaces: nginx-core (<< 1.22.1-6~) - Replaces: nginx-extras (<< 1.22.1-6~) - Replaces: nginx-light (<< 1.22.1-6~) -#+end_src - -Ah. -****** Rsyslog -Refuses to disappear. The doc says ~apt-mark auto~ followed by ~apt -autoremove~ should remove it, but that does not seem to be happening -(~autoremove~ does not find anything to remove). The =rsyslog= -service is still up & running, and watches =syslog.socket= to -re-activate itself 😕 - -Decided to explicitly ~apt remove~ it on the advice of [[https://blog.frehi.be/2023/06/04/upgrading-from-debian-11-bullseye-to-debian-12-bookworm/][this gentleman]]. -**** Laptop -***** non-free & non-free-firmware -#+begin_quote -Assuming the =non-free= component was only added to the APT -sources-list to install firmware, -#+end_quote -#+begin_example -$ apt list '?narrow(?installed, ?section(non-free))' -Listing... Done -doc-rfc-experimental/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-fyi-bcp/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-informational/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-misc/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-old-std/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-others/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-std-proposed/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc-std/oldstable,oldstable,now 20201128-1 all [installed,automatic] -doc-rfc/oldstable,oldstable,now 20201128-1 all [installed] -firmware-iwlwifi/oldstable,oldstable,now 20210315-3 all [installed] -firmware-misc-nonfree/oldstable,oldstable,now 20210315-3 all [installed] -gcc-10-doc/oldstable,oldstable,now 10.2.0-1 all [installed,automatic] -gdb-doc/oldstable,oldstable,now 10.1-1 all [installed] -make-doc/oldstable,oldstable,now 4.3-2 all [installed] -manpages-posix-dev/oldstable,oldstable,now 2017a-2 all [installed] -manpages-posix/oldstable,oldstable,now 2017a-2 all [installed] -tar-doc/oldstable,oldstable,now 1.34-1 all [installed] -#+end_example -Will be keeping =non-free= in addition to =non-free-firmware= then 🫣 -***** Fallout -****** GRUB -#+begin_src sh -sudo sed -i \ - s/'^#GRUB_DISABLE_OS_PROBER=false'/'GRUB_DISABLE_OS_PROBER=false'/ \ - /etc/default/grub -sudo update-grub -#+end_src - -****** PEP 668 -#+begin_src sh -# Before upgrade: keep calm… -pip uninstall $(pip freeze --user | cut -d= -f1) -# After upgrade: … carry on. -sudo apt install pipx -pipx install yt-dlp -#+end_src - -****** VLC -+Seems fine? No choppiness observed on a 2k@24FPS video from yt-dlp+ - -Is choppy as all hell on /some/ videos, not sure which kind nor why; -could not be bothered discerning the patterns. Learned me an mpv for -great good. -***** Goodies -- The [[#random-lag][random lag I had been observing since 5.8]] seems gone 🥳 -- =libtree-sitter-dev= is new enough for Emacs; can get rid of my - =/usr/local= version. -** impromptu IBus -Installing [[https://zoom.us/][Zoom]]'s Debian package somehow enabled IBus[fn:: AFAICT -because ibus recommends im-config, and the latter autostarts the -former by default], which unconditionally set my keyboard to English -for some reason[fn:: Before properly running ~apt install -./zoom_amd64.deb~, I had mistakenly run ~dpkg -i zoom_amd64.deb~, -which failed because of missing dependencies. Perhaps apt omitted -some post-installation configuration hooks because the first dpkg run -had left an error marker somewhere?]. Steps taken: - -1. Tweak IBus preferences, unset shortcuts (Emacs has a better - interface for searching/inserting Unicode characters), check "use - system defaults" for the keyboard layout. - -2. Go on a hunt for whoever spawns ibus-daemon(1); AFAICT it's - im-launch(1), which can be told not to use IBus through im-config - (which eventually just writes ~run_im none~ in =~/.xinputrc=). - -3. Eventually, maybe I should just uninstall im-config. -** random lag -*** DONE diagnosing -Since… a few days? weeks? one month? everything randomly becomes -"choppy": - -- typing (Emacs, Terminator, Firefox): I can type in a bunch of words, - sit back, wait a few seconds, then watch the words finally write - themselves letter by letter. -- launching programs: ~while time $aprogram ; do sleep 0.5 ; done~, - where ~aprogram~ just starts then exits, shows wildly varying times. -- scrolling a PDF with the touchpad (Evince): the pages stay stuck for - a few seconds, then the reader jumps to the new location; the mouse - pointer does change during this delay, as text and whitespace - (invisibly) scroll by. - -I can't remember changing anything recently, nor seeing any scary -update passing by. journalctl, htop and dmesg do not show any obvious -suspects. Some things I considered: - -- Disabling some services e.g. tor or speech-dispatcher ⇒ no effect. -- Uninstalling xserver-xorg-video-intel ⇒ no effect. -- Upgrading systemd from backports ⇒ no effect. -- htop sometimes shows pulseaudio acting up despite no application - playing or recording sound? -- Maybe I should try reinstalling Debian's stable kernel? - - Luckily 5.7 was not uninstalled when upgrading to 5.8; booting on - 5.7 solves all of the "choppiness" issues listed above. - -Now to pinpoint what's wrong with 5.8… -*** TODO fixing -Found a way to "quantify" the problem; asked around on the -debian-kernel mailing list, to no avail. - -- [[https://lists.debian.org/debian-kernel/2020/11/msg00084.html][2020-11]] - original report that 5.8 from backports triggers the - issue: "wait for 5.9 to be available from backports or even 5.10" - (LTS for the next Debian stable version) -- [[https://lists.debian.org/debian-kernel/2020/12/msg00040.html][2020-12]] - quick report that 5.9 from backports does not improve - things: 🦗 -- [[https://lists.debian.org/debian-kernel/2021/02/msg00231.html][2021-02]] - quick report that 5.10 from backports does not improve - things *✨with scripts & numbers✨*: 🦗 - -#+begin_quote - for ((i=0; i<100; i++)); do - time -p terminator -x 'bash -c exit' - done &> time-$(uname -r) - - grep $mode time-$(uname -r) | sort -k2 - -Where $mode is either real, user or sys. Here are the extrema: - - real user sys - min max min max min max -5.7 0.44 0.48 0.29 0.35 0.02 0.08 -5.10 0.47 3.30 0.31 2.87 0.02 0.30 -5.10-after-suspend 0.46 0.50 0.30 0.36 0.03 0.08 - -Averages & standard deviations: - - real user sys -5.7 0.454±0.006 0.322±0.013 0.046±0.013 -5.10 0.961±0.607 0.559±0.518 0.074±0.052 -5.10-after-suspend 0.469±0.005 0.332±0.012 0.050±0.011 - -These results feel consistent with the stutter I observe: 5.7 and -5.10-after-suspend have roughly the same performance, while -freshly-booted 5.10 is overall very jittery: terminator startup is twice -as slow on average, with 100× more variance. - - -Some more stats, eyeballed from /proc/cpuinfo and -/sys/devices/system/cpu/cpufreq/policy*/scaling_governor: - - idle frequency CPU governor -5.7 < 800 MHz powersave -5.10 > 1900 MHz ondemand -5.10 (after suspend) < 900 MHz ondemand -#+end_quote - -- [[https://lists.debian.org/debian-kernel/2021/08/msg00278.html][2021-08]] - quick report that 5.10 from a fresh bullseye install does - not improve things: 🦗 -- 2023-08 - bookworm upgrade to 6.1: problem solved 🤷 -** samba server -- I want most of my music on my laptop. -- I want to access it from my desktop. -- I want anyone on my home network to access it too. -- I am too lazy to remove the Windows partition from my laptop, so - that partition sits mostly empty, eating 50% of the disk space. - -Therefore, the only sensible move is to run Samba on the laptop, -serving a folder on my Linux partition with a symlink to the Windows -partition. - -Chosen =/etc/smb.conf= excerpts: - -#+begin_src conf -[global] -allow insecure wide links = yes - -[sambo] -comment = Files yours truly is sharing with you. -path = /home/[…user…]/Public/smb -browseable = yes -read only = yes -guest ok = yes -wide links = yes -#+end_src - -Then: - -#+begin_src sh -# Mount Windows disk. -udisksctl mount --block-device /dev/disk/by-label/OS -# Symlink it from shared directory. -ln -s /media/[…user…]/OS/Music ~/Public/smb/ -#+end_src - -On the desktop side: -#+begin_src sh -sudo mount.cifs //hirondell.local/sambo […somewhere…] \ - -o guest,uid=$(id -u),gid=$(id -g) -#+end_src -* Someday -** fix xfce4-terminal opening links with firefox-esr -** fix Thunar opening images with Firefox instead of Ristretto -** fix Ristretto thumbnails -** Samsung NC10 -*** fix Ethernet after suspend -Workaround: -#+begin_src sh -$ sudo modprobe -r sky2 && sudo modprobe -i sky2 -#+end_src -References: -- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1841304 -- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895378 -- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798921 -- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809843 -- https://askubuntu.com/questions/1029620/ubuntu-18-04-lts-sky2-ethernet-stops-working-after-system-resume-from-suspend -- https://bbs.archlinux.org/viewtopic.php?id=234725 diff --git a/guides/setups/operating-systems/opensuse.org b/guides/setups/operating-systems/opensuse.org index d224f9f..5ea173c 100644 --- a/guides/setups/operating-systems/opensuse.org +++ b/guides/setups/operating-systems/opensuse.org @@ -1,77 +1,5 @@ -* Post-installation setup -** System settings -*** Workspace Behavior -- Virtual Desktops - - 1 row, 4 desktops -*** Window Management -- Task Switcher - - Visualization: Thumbnail Grid -*** Shortcuts -**** Applications -- Dolphin: disable =Meta+E=; add =Meta+F= -- Konsole: disable =Ctrl+Alt+T=; add =Meta+T= -- KRunner: disable =Alt+Space= -**** System Settings -- KWin - - Active Window Demanding Attention: disable =Ctrl+Alt+A= - - Maximize Window: =Meta+Up= - - Switch to Next Desktop: =Ctrl+Alt+Right= - - Switch to Previous Desktop: =Ctrl+Alt+Left= - - Walk Through Windows of Current Application: disable =Alt+`= - - Walk Through Windows of Current Application (Reverse): disable =Alt+~= - - Window to Desktop /n/: =Ctrl+Alt+n= -- Plasma - - Enable Clipboard Actions: disable =Ctrl+Alt+X= - - Manually Invoke Action on Current Clipboard: disable =Ctrl+Alt+R= -- Session Management - - Lock Session: disable =Ctrl+Alt+L=; add =Meta+X= -*** Input devices -- Keyboard - - Layouts - - Alternative shortcut: unset - - Variant: French (legacy, alt.) - - Advanced - - [X] Configure keyboard options - - [X] Caps Lock behavior: Make Caps Lock an additional Ctrl -** Bottom panel -- Configure Pager - - [X] Show application icons on window outlines -- Unpin all applications -- Replace "Icon-only Task Manager" with "Task Manager" -** Dotfiles -*** =.profile= -#+begin_src sh -if test -d ~/.local/bin -then - export PATH=~/.local/bin:${PATH} -fi - -unset PAGER # breaks Python REPL in Emacs. -#+end_src -** TODO Unset root password -Following instructions from [[https://en.opensuse.org/SDB:Administer_with_sudo][the support database]]: -- with ~visudo~, uncomment the ~%wheel ALL=(ALL) ALL~ line -- ~sudo usermod -aG wheel $USER~ -- with ~visudo~, comment out ~Defaults targetpw~ and ~ALL ALL=(ALL) - ALL~ -- YaST still insists on getting the root password… -*** Fix eager ~sudo passwd -d root~ -- boot on install media -- start rescue mode -- locate partition with ~lsblk~ -- ~mount $PARTITION /mnt/disk~ -- ~cp /mnt/disk/etc/shadow- /mnt/disk/etc/shadow~ -** Global keyboard settings -#+begin_src sh -$ sudo localectl set-x11-keymap fr pc105 latin9 ctrl:nocaps -#+end_src -To set this for TTYs: cf. [[./console.org]]. -** Applications -*** Firefox -- Clear =browser.newtabpage.pinned= -- Set =widget.use-xdg-desktop-portal.file-picker= to 1 to get Plasma's - file picker -* Packages that took me more than one minute to find +* Packages +… that took me more than one minute to find. ** spell-checking - hunspell - myspell-fr_FR @@ -86,83 +14,6 @@ To make permanent, either: immediate application, - run the command /a second time/ with =--permanent=, - run ~firewall-cmd --runtime-to-permanent~. -** Fix broken Nvidia drivers after upgrade -Reinstall Nvidia kernel module: -#+begin_src sh -$ sudo zypper in -f nvidia-gfxG05-kmp-default -#+end_src -** Load X-Box gamepad drivers automatically -- comment out any blacklisting of =xpad= in =/etc/modprobe.d= - (e.g. xboxdrv installs =/etc/modprobe.d/50-xpad.conf=) - - if installed, make sure the xboxdrv service is disabled -- ~sudo tee /etc/modules-load.d/xpad.conf <<< xpad~ -** Clear up some space for large upgrades -libc and compilers upgrades sometimes fail midway through because -there is no space left. An easy way to reclaim some space is to -delete some filesystem snapshots: -#+begin_src sh -$ sudo snapper list -$ sudo snapper delete $start-$end -#+end_src -** Add VLC codecs -#+begin_src sh -$ sudo zypper addrepo http://download.videolan.org/pub/vlc/SuSE/Tumbleweed VLC -$ sudo zypper modifyrepo --refresh VLC -$ sudo zypper install --from VLC ffmpeg vlc vlc-codecs -#+end_src -NB: there's a lot of prompting going on in that last command; maybe -=--allow-vendor-change= could help. -*** Upgrade woes -Sometimes this VLC repository will stop providing a package it used -to, e.g. because it now ships an upgraded version (and the version -number is somehow part of the package name). - -In that case, we need to help =zypper= figure out what to do: -#+begin_src sh -$ sudo zypper dist-upgrade --auto-agree-with-licenses -# … -Computing distribution upgrade... - -Problem: problem with the installed libliveMedia97-2021.08.23-58.7.x86_64 - Solution 1: install libliveMedia97-2021.08.23-1.2.x86_64 from vendor openSUSE - replacing libliveMedia97-2021.08.23-58.7.x86_64 from vendor VideoLAN Project (http://www.videolan.org) - Solution 2: keep obsolete libliveMedia97-2021.08.23-58.7.x86_64 - -Choose from above solutions by number or cancel [1/2/c/d/?] (c): d -Problem: problem with the installed libliveMedia97-2021.08.23-58.7.x86_64 -Detailed information: - the installed libliveMedia97-2021.08.23-58.7.x86_64 does not belong to a distupgrade repository and must be replaced - Solution 1: install libliveMedia97-2021.08.23-1.2.x86_64 from vendor openSUSE - replacing libliveMedia97-2021.08.23-58.7.x86_64 from vendor VideoLAN Project (http://www.videolan.org) - Solution 2: keep obsolete libliveMedia97-2021.08.23-58.7.x86_64 - -Choose from above solutions by number or cancel [1/2/c/d/?] (c): 1 -Resolving dependencies... -Computing distribution upgrade... -# … -The following package is going to be downgraded: - libliveMedia97 - -The following package is going to change vendor: - libliveMedia97 VideoLAN Project (http://www.videolan.org) -> openSUSE - -The following 6 NEW packages are going to be installed: - … libliveMedia102 … -# … -#+end_src - -In this instance, I went looking at the [[http://download.videolan.org/pub/vlc/SuSE/Tumbleweed/x86_64/][VLC repository]] to figure out -what was going on; searching for "libliveMedia" revealed that the -repository now shipped libliveMedia102 and no longer included -libliveMedia97. - -I went with solution 1 (switch to openSUSE's libliveMedia97), but -maybe solution 2 was the right one? E.g. maybe after "computing [the] -distribution upgrade", zypper would have realized that nobody needs -97 anymore, so it could be removed; could be I accidentally set 97 to -"manually installed" with solution 1? - -🤷 ** Auto-mount second disk under =$HOME/media= #+begin_example $ lsblk --fs diff --git a/guides/sysadmin/machines/README.org b/guides/sysadmin/machines/README.org new file mode 100644 index 0000000..9e35cac --- /dev/null +++ b/guides/sysadmin/machines/README.org @@ -0,0 +1,2 @@ +Notes that are specific to a particular machine… or at least, started +that way. diff --git a/guides/sysadmin/machines/hirondell/install.org b/guides/sysadmin/machines/hirondell/install.org new file mode 100644 index 0000000..20a749b --- /dev/null +++ b/guides/sysadmin/machines/hirondell/install.org @@ -0,0 +1,231 @@ +* Step-by-step recap (Bullseye) +** Setup keyboard +Turn CapsLock key into Control (cf. keyboard(5)): +- add =ctrl:nocaps= to =XKBOPTIONS= in =/etc/default/keyboard= +- run =udevadm trigger --subsystem-match=input --action=change= +- run =setupcon= in a TTY +** Install stuff +*** Distro-provided packages +#+begin_src sh +packages=( + # To clone & update dotfiles. + git + # Look & feel. + elementary-xfce-icon-theme greybird-gtk-theme + # Enable volume management with Thunar. + gvfs-backends gvfs-fuse + # System monitoring. + htop powertop wavemon + # Documentation: + # - info pages, + gcc-doc make-doc tar-doc info + # - manpages, + manpages-dev manpages-posix manpages-posix-dev + # - text & HTML pages. + git-doc python3-doc + # Writing helpers. + aspell-fr verbiste wordnet + # CLI helpers. + mlocate ripgrep vim + # Fonts. + fonts-noto-color-emoji + # Miscellaneous applications. + ffmpeg gimp pandoc terminator vlc +) +sudo apt install ${packages[@]} +#+end_src +*** Latest and greatest +**** Firefox +- download most recent release from from <https://www.mozilla.org> +- unpack it =$SOMEWHERE= +- make sure everyone can find it: + +#+begin_src sh +$ sudo update-alternatives --install $(which x-www-browser) x-www-browser \ + ${SOMEWHERE}/firefox/firefox 1 +$ sudo update-alternatives --set x-www-browser ${SOMEWHERE}/firefox/firefox +$ ln -s ${SOMEWHERE}/firefox/firefox ~/.local/bin/ +#+end_src + +- paste backuped profile into =~/.mozilla/firefox/${profile}= +**** Symbola +- grab the archive from <http://users.teilar.gr/~g1951d/> +- drop the TTF files in =~/.local/share/fonts= +- run =fc-cache -fv= +**** youtube-dl +#+begin_src sh +$ sudo apt install python3-pip +$ pip3 install --user youtube-dl +#+end_src +** Setup dotfiles +*** Clone versioned dotfiles +- create new SSH key for GitLab +- follow instructions in dotfiles README +*** Tweak non-versioned dotfiles +- set EMAIL in =.profile= +- add =~/.local/bin= to PATH +- copy =.profile= to =.xsessionrc= +- in =.bashrc= + - enable globstar and autocd + - uncomment grep and ls aliases + - source =~/.bash_prompt= +** Setup Emacs +- clone from Savannah +- =apt build-dep emacs= +- =apt install libgconf2-dev libwebkit2gtk-4.0-dev= + (optional build dependencies for ≥27) +- comment out .emacs below =(load custom-file)= +#+begin_src elisp +(package-refresh-contents) +(package-install-selected-packages) +#+end_src +** Setup XFCE +*** Appearance +**** Style +Greybird-dark +**** Icons +elementary Xfce darker +**** Fonts +- Rendering + - [X] Enable anti-aliasing + - Hinting: Slight + - Sub-pixel order: RGB (trusting the [[http://www.lagom.nl/lcd-test/subpixel.php][Lagom LCD test pages]]) +*** File Manager +**** View +- Side Pane: Tree +- View as Detailed List +*** Panel +**** Top panel +***** Items +****** Whisker Menu +****** Window Buttons +****** Separator +****** Workspace Switcher +****** Separator +****** Status Tray Plugin +****** PulseAudio Plugin +****** Power Manager Plugin +- Show label: None +****** Notification Plugin +****** Separator +****** Clock +**** Bottom panel +Delete. +*** Window Manager +**** Keyboard +- Move window to previous workspace: Shift+Super+Left +- Move window to next workspace: Shift+Super+Right +- Tile window to the left: Super+Left +- Tile window to the right: Super+Right +- Show desktop: Super+D +*** Window Manager Tweaks +**** Accessibility +- [X] Hide title of windows when maximized +**** Compositor +- [ ] Show shadows under… +*** Terminal +**** General +- Scrolling + - [ ] Scroll on output + - Scrollbar is: Disabled + - [X] Unlimited scrollback +**** Appearance +- Font + - [X] Use system font +- Opening New Windows + - [ ] Display menubar in new windows +**** Advanced +- Shortcuts + - [X] Disable all menu access keys (such as Alt+f) /for readline/ + - [X] Disable menu shortcut key (F10 by default) /for htop & + wavemon/ + - [X] Disable help window shortcut key (F1 by default) /for htop & + wavemon/ +- Misc + - [X] Automatically copy selection to clipboard +*** Keyboard +**** Application shortcuts +- emacs: Super+E +- exo-open --launch FileManager: Super+F +- exo-open --launch TerminalEmulator: Super+T +- exo-open --launch WebBrowser: Super+W +- xfce4-popup-whiskermenu: Alt+F1 +- xfce4-screenshooter: Print +- xfce4-screenshooter --fullscreen: Shift+Print +- xfce4-screenshooter --region: Control+Print +- xfce4-screenshooter --window: Super+Print +- xfce4-session-logout: Super+X +- xflock4: Super+L +*** Mouse and Touchpad +**** Devices +- =… Touchpad= + - Touchpad + - [X] Tap touchpad to click +*** Power Manager +**** System +- On battery / Plugged in + - When laptop lid is closed: Suspend +*** Removable Drives and Media +**** Storage +- [X] Mount removable drives when hot-plugged +- [X] Mount removable media when inserted + +** Setup more stuff +*** lightdm +Show my account on startup: +#+begin_src conf +# /usr/share/lightdm/lightdm.conf.d/99_custom.conf +[Seat:*] +greeter-hide-users=false +#+end_src +*** system groups +#+begin_src sh +groups=( + adm # Access /var/log journals. + dialout # Sync my phone. +) +for g in ${groups[@]} +do + sudo adduser ${USER} ${g} +done +#+end_src +* Live reactions (Buster) +** groundwork +Using instructions from <https://wiki.debian.org/Firmware>. +*** Get netinst image from <https://www.debian.org/CD/netinst/> +*** Get firmware archive from <https://cdimage.debian.org/cdimage/unofficial/non-free/firmware/stable/current/> +So that the installer can use the wireless network card. Extract all +.deb files to a top-level =firmware= folder on a USB key. +*** Shrink the MS partition +Had to "optimize the disk", otherwise some free space remained +unavailable. +** installer +Everything went smoothly: +- if the USB key holding the firmware isn't plugged in, the installer + requests it, otherwise it finds the firmware automatically; +- Secure Boot supported transparently; +- dual-booting too. +** package repositories +Non-free repositories automatically added during the installation, +because of the WiFi firmware I presume. +** kernel issues +*** i915/glk_dmc_ver1_04.bin +kern.log: +#+begin_quote +i915 0000:00:02.0: firmware: failed to load i915/glk_dmc_ver1_04.bin (-2) +#+end_quote +apt install firmware-misc-nonfree seems to quiet that down. +*** i2c_hid_get_input: incomplete report +kern.log: +#+begin_quote +i2c_hid i2c-MSFT0001:00: i2c_hid_get_input: incomplete report (14/65535) +#+end_quote +About one message for every half-second spent touching the touchpad. + +"Solved" with: +#+begin_src sh +$ apt install -t buster-backports \ + linux-image-amd64 \ + firmware-iwlwifi \ + firmware-misc-nonfree +#+end_src diff --git a/guides/sysadmin/machines/hirondell/maintenance.org b/guides/sysadmin/machines/hirondell/maintenance.org new file mode 100644 index 0000000..1e44459 --- /dev/null +++ b/guides/sysadmin/machines/hirondell/maintenance.org @@ -0,0 +1,294 @@ +* Config +** samba server +- I want most of my music on my laptop. +- I want to access it from my desktop. +- I want anyone on my home network to access it too. +- I am too lazy to remove the Windows partition from my laptop, so + that partition sits mostly empty, eating 50% of the disk space. + +Therefore, the only sensible move is to run Samba on the laptop, +serving a folder on my Linux partition with a symlink to the Windows +partition. + +Chosen =/etc/smb.conf= excerpts: + +#+begin_src conf +[global] +allow insecure wide links = yes + +[sambo] +comment = Files yours truly is sharing with you. +path = /home/[…user…]/Public/smb +browseable = yes +read only = yes +guest ok = yes +wide links = yes +#+end_src + +Then: + +#+begin_src sh +# Mount Windows disk. +udisksctl mount --block-device /dev/disk/by-label/OS +# Symlink it from shared directory. +ln -s /media/[…user…]/OS/Music ~/Public/smb/ +#+end_src + +On the desktop side: +#+begin_src sh +sudo mount.cifs //hirondell.local/sambo […somewhere…] \ + -o guest,uid=$(id -u),gid=$(id -g) +#+end_src +* Upgrades +** Bookworm +*** research +**** [[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#non-free-split][Release notes § Issues to be aware of]] +***** minutiae +- ~sed s/non-free/non-free-firmware/~ +- =youtube-dl= ⇒ =yt-dlp= +- clear =GRUB_DISABLE_OS_PROBER= +***** System logs ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#changes-to-system-logging][ref]]) +1. ~apt-mark auto rsyslog ; apt autoremove~ +2. double-check that journalctl config saves to persistent storage +3. finally learn ~journalctl~ +***** Reduced accessibility from GTK 3⇒4 transition ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#gnome-has-reduced-accessibility-support-for-screen-readers][ref]]) +Not a huge deal for me (though [[https://github.com/transmission/transmission/discussions/5065][other aspects]] of the transition are +irksome), but [[https://tech.lgbt/@xogium/110507457689374019][dang]]. +***** "Externally-managed" Python installation ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#python3-pep-668][ref]]) +1. inventory & clear out stuff installed with ~pip install --user~ +2. upgrade +3. install =pipx= +4. reinstall +***** VLC support for VA-API disabled ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#vlc-ffmpeg-5][ref]]) +- [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021601][Debian bug#1021601]] =vlc: VAAPI hardware acceleration no more available= +- [[https://code.videolan.org/videolan/vlc/-/issues/26772][VLC#26772]] =VAAPI is disabled with ffmpeg5 on vlc-3x= + - "we won't support full FFmpeg5 in 3.0" ([[https://code.videolan.org/videolan/vlc/-/issues/26772#note_316827][ref]]) +- [[https://code.videolan.org/videolan/vlc/-/merge_requests/1245][VLC!1245]] =[VLC3] Support FFmpeg 5.0 (except for VAAPI)= + - "it seems that the VAAPI part is far from trivial and requires + invasive changes (contrary to the other fixes)" ([[https://code.videolan.org/videolan/vlc/-/merge_requests/1245#note_302474][ref]]) +- user reports: [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021664][2022-10]], [[https://old.reddit.com/r/debian/comments/z5ectb/vlc_delaying_frames_on_a_fresh_debian_12_install/][2022-11]], [[https://old.reddit.com/r/debian/comments/119x7tr/debian_12_bookworm_no_hw_acceleration_in_vlc_h264/][2023-02]], [[https://old.reddit.com/r/debian/comments/14u38mm/video_choppy_in_vlc_but_not_totem/][2023-07]] + +No idea how much that will affect little =hirondell=. If push comes +to shove, I guess I can either +- build VLC 4, +- learn mpv. +***** systemd naming for Xen network interfaces ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#xen-network][ref]]) +=eth0= changes to =enX0=. No idea if my VPS is impacted or not; it +does have an interface named =eth0=, and that name also shows up in +=/etc/network/interfaces=. +***** Known severe bugs ([[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#rc-bugs][ref]]) +- [[https://bugs.debian.org/1036041][bug#1036041]]: =upgrade-reports: Dell XPS 9550 fails to boot after + bullseye to bookworm upgrade - grub/bios interaction bug?= +*** VPS +**** =/etc/cloud/cloud.cfg= +My local version has these two lines: +#+begin_src +mount_default_fields: [~, ~, 'auto', 'defaults,nofail', '0', '2'] +manage_etc_hosts: true +#+end_src +No idea if this is OVH-specific. No idea if I want them. Let's trust +"the package maintainer" 😐 +**** =/etc/ssh/sshd_config= +OK, note to self: *never* choose "do a 3-way merge". Thought that +would be something along the lines of Emacs's Ediff; instead… +#+begin_quote +Merging changes into the new version +#+end_quote +/Mind giving a couple more details on that "merge" mate?/ + +OK, + +- =/usr/share/openssh/sshd_config= has the new stock config, +- =/etc/ssh/sshd_config.ucf-old= has the /previous/ *local* config +- ~diff -u {/usr/shared/openssh,/etc/ssh}/sshd_config~ suggests that + the ✨magic merge✨ did TRT; the only differences are + - stuff I remember changing in (=PermitRootLogin=, + =PasswordAtuhentication=) + - a spurious whitespace-only hunk on =Subsystem sftp= (the + =/usr/share= version uses tabs; the =/etc= version ended up with a + single space) +**** Removing obsolete stuff +Erm, why does ~apt purge '~c'~ says +#+begin_quote +The following packages were automatically installed and are no longer required: +[…] nginx-core nginx-full […] +#+end_quote + +😨 + +#+begin_src +$ dpkg -S $(sudo which nginx) +nginx: /usr/sbin/nginx +$ apt depends nginx +[…] + Replaces: nginx-core (<< 1.22.1-6~) + Replaces: nginx-extras (<< 1.22.1-6~) + Replaces: nginx-light (<< 1.22.1-6~) +#+end_src + +Ah. +***** Rsyslog +Refuses to disappear. The doc says ~apt-mark auto~ followed by ~apt +autoremove~ should remove it, but that does not seem to be happening +(~autoremove~ does not find anything to remove). The =rsyslog= +service is still up & running, and watches =syslog.socket= to +re-activate itself 😕 + +Decided to explicitly ~apt remove~ it on the advice of [[https://blog.frehi.be/2023/06/04/upgrading-from-debian-11-bullseye-to-debian-12-bookworm/][this gentleman]]. +*** Laptop +**** non-free & non-free-firmware +#+begin_quote +Assuming the =non-free= component was only added to the APT +sources-list to install firmware, +#+end_quote +#+begin_example +$ apt list '?narrow(?installed, ?section(non-free))' +Listing... Done +doc-rfc-experimental/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-fyi-bcp/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-informational/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-misc/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-old-std/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-others/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-std-proposed/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc-std/oldstable,oldstable,now 20201128-1 all [installed,automatic] +doc-rfc/oldstable,oldstable,now 20201128-1 all [installed] +firmware-iwlwifi/oldstable,oldstable,now 20210315-3 all [installed] +firmware-misc-nonfree/oldstable,oldstable,now 20210315-3 all [installed] +gcc-10-doc/oldstable,oldstable,now 10.2.0-1 all [installed,automatic] +gdb-doc/oldstable,oldstable,now 10.1-1 all [installed] +make-doc/oldstable,oldstable,now 4.3-2 all [installed] +manpages-posix-dev/oldstable,oldstable,now 2017a-2 all [installed] +manpages-posix/oldstable,oldstable,now 2017a-2 all [installed] +tar-doc/oldstable,oldstable,now 1.34-1 all [installed] +#+end_example +Will be keeping =non-free= in addition to =non-free-firmware= then 🫣 +**** Fallout +***** GRUB +#+begin_src sh +sudo sed -i \ + s/'^#GRUB_DISABLE_OS_PROBER=false'/'GRUB_DISABLE_OS_PROBER=false'/ \ + /etc/default/grub +sudo update-grub +#+end_src + +***** PEP 668 +#+begin_src sh +# Before upgrade: keep calm… +pip uninstall $(pip freeze --user | cut -d= -f1) +# After upgrade: … carry on. +sudo apt install pipx +pipx install yt-dlp +#+end_src + +***** VLC ++Seems fine? No choppiness observed on a 2k@24FPS video from yt-dlp+ + +Is choppy as all hell on /some/ videos, not sure which kind nor why; +could not be bothered discerning the patterns. Learned me an mpv for +great good. +**** Goodies +- The [[#random-lag][random lag I had been observing since 5.8]] seems gone 🥳 +- =libtree-sitter-dev= is new enough for Emacs; can get rid of my + =/usr/local= version. +* Hiccups +** impromptu IBus +Installing [[https://zoom.us/][Zoom]]'s Debian package somehow enabled IBus[fn:: AFAICT +because ibus recommends im-config, and the latter autostarts the +former by default], which unconditionally set my keyboard to English +for some reason[fn:: Before properly running ~apt install +./zoom_amd64.deb~, I had mistakenly run ~dpkg -i zoom_amd64.deb~, +which failed because of missing dependencies. Perhaps apt omitted +some post-installation configuration hooks because the first dpkg run +had left an error marker somewhere?]. Remediation steps taken: + +1. Tweak IBus preferences, unset shortcuts (Emacs has a better + interface for searching/inserting Unicode characters), check "use + system defaults" for the keyboard layout. + +2. Go on a hunt for whoever spawns ibus-daemon(1); AFAICT it's + im-launch(1), which can be told not to use IBus through im-config + (which eventually just writes ~run_im none~ in =~/.xinputrc=). + +3. Eventually, maybe I should just uninstall im-config. +** random lag +*** DONE diagnosing +Since… a few days? weeks? one month? everything randomly becomes +"choppy": + +- typing (Emacs, Terminator, Firefox): I can type in a bunch of words, + sit back, wait a few seconds, then watch the words finally write + themselves letter by letter. +- launching programs: ~while time $aprogram ; do sleep 0.5 ; done~, + where ~aprogram~ just starts then exits, shows wildly varying times. +- scrolling a PDF with the touchpad (Evince): the pages stay stuck for + a few seconds, then the reader jumps to the new location; the mouse + pointer does change during this delay, as text and whitespace + (invisibly) scroll by. + +I can't remember changing anything recently, nor seeing any scary +update passing by. journalctl, htop and dmesg do not show any obvious +suspects. Some things I considered: + +- Disabling some services e.g. tor or speech-dispatcher ⇒ no effect. +- Uninstalling xserver-xorg-video-intel ⇒ no effect. +- Upgrading systemd from backports ⇒ no effect. +- htop sometimes shows pulseaudio acting up despite no application + playing or recording sound? +- Maybe I should try reinstalling Debian's stable kernel? + - Luckily 5.7 was not uninstalled when upgrading to 5.8; booting on + 5.7 solves all of the "choppiness" issues listed above. + +Now to pinpoint what's wrong with 5.8… +*** TODO fixing +Found a way to "quantify" the problem; asked around on the +debian-kernel mailing list, to no avail. + +- [[https://lists.debian.org/debian-kernel/2020/11/msg00084.html][2020-11]] - original report that 5.8 from backports triggers the + issue: "wait for 5.9 to be available from backports or even 5.10" + (LTS for the next Debian stable version) +- [[https://lists.debian.org/debian-kernel/2020/12/msg00040.html][2020-12]] - quick report that 5.9 from backports does not improve + things: 🦗 +- [[https://lists.debian.org/debian-kernel/2021/02/msg00231.html][2021-02]] - quick report that 5.10 from backports does not improve + things *✨with scripts & numbers✨*: 🦗 + +#+begin_quote + for ((i=0; i<100; i++)); do + time -p terminator -x 'bash -c exit' + done &> time-$(uname -r) + + grep $mode time-$(uname -r) | sort -k2 + +Where $mode is either real, user or sys. Here are the extrema: + + real user sys + min max min max min max +5.7 0.44 0.48 0.29 0.35 0.02 0.08 +5.10 0.47 3.30 0.31 2.87 0.02 0.30 +5.10-after-suspend 0.46 0.50 0.30 0.36 0.03 0.08 + +Averages & standard deviations: + + real user sys +5.7 0.454±0.006 0.322±0.013 0.046±0.013 +5.10 0.961±0.607 0.559±0.518 0.074±0.052 +5.10-after-suspend 0.469±0.005 0.332±0.012 0.050±0.011 + +These results feel consistent with the stutter I observe: 5.7 and +5.10-after-suspend have roughly the same performance, while +freshly-booted 5.10 is overall very jittery: terminator startup is twice +as slow on average, with 100× more variance. + + +Some more stats, eyeballed from /proc/cpuinfo and +/sys/devices/system/cpu/cpufreq/policy*/scaling_governor: + + idle frequency CPU governor +5.7 < 800 MHz powersave +5.10 > 1900 MHz ondemand +5.10 (after suspend) < 900 MHz ondemand +#+end_quote + +- [[https://lists.debian.org/debian-kernel/2021/08/msg00278.html][2021-08]] - quick report that 5.10 from a fresh bullseye install does + not improve things: 🦗 +- 2023-08 - bookworm upgrade to 6.1: problem solved 🤷 diff --git a/guides/sysadmin/machines/little-buster/README.org b/guides/sysadmin/machines/little-buster/README.org new file mode 100644 index 0000000..3d6cd54 --- /dev/null +++ b/guides/sysadmin/machines/little-buster/README.org @@ -0,0 +1,8 @@ +Aka =nc10-laptop=. A hand-me-down Samsung NC10 I used from 2016 +to 2020. Served valiantly; probably still works, but have been afraid +to boot it since the fan started to [[https://bugs.gnu.org/45705#41][sound like]] it is trying to open a +gateway to Hellas Planitia. + +Initially went with Bunsenlabs, then vanilla Debian/XFCE during a +reinstall. Fairly low-end, no SSD, but tiny & cute; a perfectly +serviceable travel companion. diff --git a/guides/setups/fonts.md b/guides/sysadmin/machines/little-buster/fonts.md index 30e7739..30e7739 100644 --- a/guides/setups/fonts.md +++ b/guides/sysadmin/machines/little-buster/fonts.md diff --git a/guides/sysadmin/machines/little-buster/install.org b/guides/sysadmin/machines/little-buster/install.org new file mode 100644 index 0000000..18bfda7 --- /dev/null +++ b/guides/sysadmin/machines/little-buster/install.org @@ -0,0 +1,132 @@ +* installer +Touchpad is not recognized, for some reason. +* first boot +#+BEGIN_QUOTE +A start job is running for Load AppArmor profiles +#+END_QUOTE +Disappeared after ≈30s 🤷 + +Wooh touchpad works! Although the sensitivity is a bit low. +*NB: solved below.* + +Wifi LED is on, whatever that means. + +Brightness function keys do not work on the login screen. + +Using default XFCE config to get four workspaces. + +Brightness and sound function keys work! 🙌 + +Touchpad click and scroll do not work. +*NB: solved below.* + +Wifi function key does not work. + +Battery life seems somewhat shorter than with Bunsenlabs, even after +applying all powertop tricks in the book. +* apt install (1/n) +git greybird-gtk-theme elementary-xfce-icon-theme emacs + +git suggests git-doc: why of course, good idea! + +emacs suggests emacs-common-non-dfsg: right, what was that again? +Documentation, IIRC? What does APT have to say? + +#+BEGIN_EXAMPLE +$ apt show emacs-common-non-dfsg +Package: emacs-common-non-dfsg +State: not a real package (virtual) +N: Can't select candidate version from package emacs-common-non-dfsg as it has no candidate +N: Can't select versions from package 'emacs-common-non-dfsg' as it is purely virtual +N: No packages found +#+END_EXAMPLE + +… What does https://packages.debian.org/emacs-common-non-dfsg say? + +#+BEGIN_QUOTE +*[non-free]* +#+END_QUOTE + +[[https://www.debian.org/vote/2006/vote_001][Oh.]] Well then, + +#+begin_src sh +$ sudo sed -ri 's/^([^#].+ main)$/\1 contrib non-free/' /etc/apt/sources.list +$ # While in there… +$ sudo sed -ri 's/^(deb|deb-src) http:/\1 https:/' /etc/apt/sources.list +#+end_src + +What now? + +#+BEGIN_EXAMPLE +$ sudo apt update +[…] +Err:4 https://security.debian.org/debian-security buster/updates Release + Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. The name in the certificate does not match the expected. Could not handshake: Error in the certificate verification. [IP: 217.196.149.233 443] +[…] +E: The repository 'https://security.debian.org/debian-security buster/updates Release' no longer has a Release file. +N: Updating from such a repository can't be done securely, and is therefore disabled by default. +N: See apt-secure(8) manpage for repository creation and user configuration details. +#+END_EXAMPLE + +🤨 + +#+begin_src sh +$ sudo sed -ri 's/security\.debian\.org/deb.debian.org/' /etc/apt/sources.list +#+end_src + +[[https://wiki.debian.org/SourcesList#Example_sources.list][🤷]] + +* tweak dotfiles +Set EMAIL in .profile; copy .profile to .xsessionrc (AFAICT XFCE does +not read ~/.config/environment.d) to get PATHs. + +In .bashrc, enable globstar and autocd, uncomment grep and ls aliases, +source personal .bash_prompt. + +Fun fact! git can guess user.email from $EMAIL and user.name from the +[[https://en.wikipedia.org/wiki/Gecos_field][GECOS field]]. +* apt install (2/n) +#+BEGIN_QUOTE +E: Package 'gcc-doc' has no installation candidate +#+END_QUOTE +gcc-doc is only available in /backports/? +* configure XFCE +** Mouse and Touchpad +- Move sliders a bit to no avail, restore defaults. +- Google around. +- Why do my XFCE settings not have this "Touchpad" tab? +- apt install xserver-xorg-input-synaptics +- Log out and in again. +- Woah the pointer is much faster now. +- And the "Touchpad" tab is here now! +🎉 +** Panels +Remove bottom panel: I'd rather remember a few Super-… shortcuts to +launch these applications rather than waste all this vertical space. +** Appearance +*** Style +Greybird + +Patch the xfwm-tabwin style to prevent the mouse from screwing with +Alt-Tab: + +#+begin_src diff +diff -u /usr/share/themes/Greybird/gtk-2.0/gtkrc.bkp /usr/share/themes/Greybird/gtk-2.0/gtkrc +--- /usr/share/themes/Greybird/gtk-2.0/gtkrc.bkp ++++ /usr/share/themes/Greybird/gtk-2.0/gtkrc +@@ -897,8 +897,8 @@ + + bg[NORMAL] = shade (0.15, @text_color) + bg[ACTIVE] = shade (0.65, @selected_bg_color) +- bg[PRELIGHT] = shade (0.75, @selected_bg_color) +- bg[SELECTED] = shade (0.55, @bg_color) ++ bg[PRELIGHT] = shade (0.55, @bg_color) ++ bg[SELECTED] = shade (0.75, @selected_bg_color) + + fg[NORMAL] = shade (0.8, @base_color) + fg[ACTIVE] = @base_color +#+end_src +* configure more stuff +** lightdm +Debian [[https://wiki.debian.org/LightDM#Enable_user_list][hides the list of users]] on the login screen; Bunsenlabs [[https://github.com/BunsenLabs/bunsen-configs/blob/9.6-1/lightdm.conf.d/50_bunsen.conf][enables +it]] and I kind of like it (fewer keystrokes, and a cute avatar). diff --git a/guides/sysadmin/machines/little-buster/maintenance.org b/guides/sysadmin/machines/little-buster/maintenance.org new file mode 100644 index 0000000..bdee12a --- /dev/null +++ b/guides/sysadmin/machines/little-buster/maintenance.org @@ -0,0 +1,58 @@ +* Configuration +** Bunsenlabs +*** Keyboard +Cf. keyboard(5): + +- add =ctrl:nocaps= in =/etc/default/keyboard= +- run =udevadm trigger --subsystem-match=input --action=change= +- run =setupcon= in a TTY + +*** Desktop +**** Conky +- see dotfiles + +**** ClipIt +- disable hotkeys + +**** Openbox +***** =rc.xml= +- comment A-m and A-r out +- undecorate all windows: + +#+begin_src xml +<application class="*"> + <decor>no</decor> +</application> +#+end_src + +***** WM preferences +- appearance: uncheck "windows retain a border when undecorated" +- desktops: 4 + +**** tint2 +- remove launcher and exit panel items +- add date (time2) + +**** Calendar +Make weeks begin on Monday by using the British locale: + +- uncomment =en_GB.UTF-8 UTF-8= in /etc/locale.gen +- =sudo locale-gen= +- =force_lang = en_GB.utf8= in =~/.config/gsimplecal/config= + +* Hiccups +** fix xfce4-terminal opening links with firefox-esr +** fix Thunar opening images with Firefox instead of Ristretto +** fix Ristretto thumbnails +** fix Ethernet after suspend +Workaround: +#+begin_src sh +$ sudo modprobe -r sky2 && sudo modprobe -i sky2 +#+end_src +References: +- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1841304 +- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895378 +- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798921 +- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809843 +- https://askubuntu.com/questions/1029620/ubuntu-18-04-lts-sky2-ethernet-stops-working-after-system-resume-from-suspend +- https://bbs.archlinux.org/viewtopic.php?id=234725 diff --git a/guides/setups/package-management.md b/guides/sysadmin/machines/little-buster/package-management.md index 6906253..6906253 100644 --- a/guides/setups/package-management.md +++ b/guides/sysadmin/machines/little-buster/package-management.md diff --git a/guides/sysadmin/machines/my-little-tumbleweed/README.org b/guides/sysadmin/machines/my-little-tumbleweed/README.org new file mode 100644 index 0000000..eaf440e --- /dev/null +++ b/guides/sysadmin/machines/my-little-tumbleweed/README.org @@ -0,0 +1,2 @@ +A hand-me-down desktop I used during the latter Tens, until 2021. My +first experience with Tumbleweed, Plasma, and {{{wow(Linux gaming)}}}. diff --git a/guides/sysadmin/machines/my-little-tumbleweed/maintenance.org b/guides/sysadmin/machines/my-little-tumbleweed/maintenance.org new file mode 100644 index 0000000..fb011d2 --- /dev/null +++ b/guides/sysadmin/machines/my-little-tumbleweed/maintenance.org @@ -0,0 +1,153 @@ +* Post-installation setup +** System settings +*** Workspace Behavior +- Virtual Desktops + - 1 row, 4 desktops +*** Window Management +- Task Switcher + - Visualization: Thumbnail Grid +*** Shortcuts +**** Applications +- Dolphin: disable =Meta+E=; add =Meta+F= +- Konsole: disable =Ctrl+Alt+T=; add =Meta+T= +- KRunner: disable =Alt+Space= +**** System Settings +- KWin + - Active Window Demanding Attention: disable =Ctrl+Alt+A= + - Maximize Window: =Meta+Up= + - Switch to Next Desktop: =Ctrl+Alt+Right= + - Switch to Previous Desktop: =Ctrl+Alt+Left= + - Walk Through Windows of Current Application: disable =Alt+`= + - Walk Through Windows of Current Application (Reverse): disable =Alt+~= + - Window to Desktop /n/: =Ctrl+Alt+n= +- Plasma + - Enable Clipboard Actions: disable =Ctrl+Alt+X= + - Manually Invoke Action on Current Clipboard: disable =Ctrl+Alt+R= +- Session Management + - Lock Session: disable =Ctrl+Alt+L=; add =Meta+X= +*** Input devices +- Keyboard + - Layouts + - Alternative shortcut: unset + - Variant: French (legacy, alt.) + - Advanced + - [X] Configure keyboard options + - [X] Caps Lock behavior: Make Caps Lock an additional Ctrl +** Bottom panel +- Configure Pager + - [X] Show application icons on window outlines +- Unpin all applications +- Replace "Icon-only Task Manager" with "Task Manager" +** Dotfiles +*** =.profile= +#+begin_src sh +if test -d ~/.local/bin +then + export PATH=~/.local/bin:${PATH} +fi + +unset PAGER # breaks Python REPL in Emacs. +#+end_src +** TODO Unset root password +Following instructions from [[https://en.opensuse.org/SDB:Administer_with_sudo][the support database]]: +- with ~visudo~, uncomment the ~%wheel ALL=(ALL) ALL~ line +- ~sudo usermod -aG wheel $USER~ +- with ~visudo~, comment out ~Defaults targetpw~ and ~ALL ALL=(ALL) + ALL~ +- YaST still insists on getting the root password… +*** Fix eager ~sudo passwd -d root~ +- boot on install media +- start rescue mode +- locate partition with ~lsblk~ +- ~mount $PARTITION /mnt/disk~ +- ~cp /mnt/disk/etc/shadow- /mnt/disk/etc/shadow~ +** Global keyboard settings +#+begin_src sh +$ sudo localectl set-x11-keymap fr pc105 latin9 ctrl:nocaps +#+end_src +To set this for TTYs: see [[./console.org]]. +** Applications +*** Firefox +- Clear =browser.newtabpage.pinned= +- Set =widget.use-xdg-desktop-portal.file-picker= to 1 to get Plasma's + file picker +*** VLC & codecs +#+begin_src sh +$ sudo zypper addrepo http://download.videolan.org/pub/vlc/SuSE/Tumbleweed VLC +$ sudo zypper modifyrepo --refresh VLC +$ sudo zypper install --from VLC ffmpeg vlc vlc-codecs +#+end_src +NB: there's a lot of prompting going on in that last command; maybe +=--allow-vendor-change= could help. +** Drivers +*** Load X-Box gamepad drivers automatically +- comment out any blacklisting of =xpad= in =/etc/modprobe.d= + (e.g. xboxdrv installs =/etc/modprobe.d/50-xpad.conf=) + - if installed, make sure the xboxdrv service is disabled +- ~sudo tee /etc/modules-load.d/xpad.conf <<< xpad~ +* Upgrades +** Fix broken Nvidia drivers +Reinstall Nvidia kernel module: +#+begin_src sh +$ sudo zypper in -f nvidia-gfxG05-kmp-default +#+end_src +** Make space for large upgrades +libc and compilers upgrades sometimes fail midway through because +there is no space left. An easy way to reclaim some space is to +delete some filesystem snapshots: +#+begin_src sh +$ sudo snapper list +$ sudo snapper delete $start-$end +#+end_src +** Fix conflicts with VLC repo +Sometimes this VLC repository will stop providing a package it used +to, e.g. because it now ships an upgraded version (and the version +number is somehow part of the package name). + +In that case, we need to help =zypper= figure out what to do: +#+begin_src sh +$ sudo zypper dist-upgrade --auto-agree-with-licenses +# … +Computing distribution upgrade... + +Problem: problem with the installed libliveMedia97-2021.08.23-58.7.x86_64 + Solution 1: install libliveMedia97-2021.08.23-1.2.x86_64 from vendor openSUSE + replacing libliveMedia97-2021.08.23-58.7.x86_64 from vendor VideoLAN Project (http://www.videolan.org) + Solution 2: keep obsolete libliveMedia97-2021.08.23-58.7.x86_64 + +Choose from above solutions by number or cancel [1/2/c/d/?] (c): d +Problem: problem with the installed libliveMedia97-2021.08.23-58.7.x86_64 +Detailed information: + the installed libliveMedia97-2021.08.23-58.7.x86_64 does not belong to a distupgrade repository and must be replaced + Solution 1: install libliveMedia97-2021.08.23-1.2.x86_64 from vendor openSUSE + replacing libliveMedia97-2021.08.23-58.7.x86_64 from vendor VideoLAN Project (http://www.videolan.org) + Solution 2: keep obsolete libliveMedia97-2021.08.23-58.7.x86_64 + +Choose from above solutions by number or cancel [1/2/c/d/?] (c): 1 +Resolving dependencies... +Computing distribution upgrade... +# … +The following package is going to be downgraded: + libliveMedia97 + +The following package is going to change vendor: + libliveMedia97 VideoLAN Project (http://www.videolan.org) -> openSUSE + +The following 6 NEW packages are going to be installed: + … libliveMedia102 … +# … +#+end_src + +In this instance, I went looking at the [[http://download.videolan.org/pub/vlc/SuSE/Tumbleweed/x86_64/][VLC repository]] to figure out +what was going on; searching for "libliveMedia" revealed that the +repository now shipped libliveMedia102 and no longer included +libliveMedia97. + +I went with solution 1 (switch to openSUSE's libliveMedia97), but +maybe solution 2 was the right one? E.g. maybe after "computing [the] +distribution upgrade", zypper would have realized that nobody needs +97 anymore, so it could be removed; could be I accidentally set 97 to +"manually installed" with solution 1? + +🤷 + diff --git a/guides/setups/notifications.org b/guides/sysadmin/machines/my-little-tumbleweed/notifications.org index 5d8ee62..5d8ee62 100644 --- a/guides/setups/notifications.org +++ b/guides/sysadmin/machines/my-little-tumbleweed/notifications.org |