* 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. ** Windows *** 2025-03 For [[file:../amdahl30/killing-time.org::*SSD?][reasons]], had to dust off my Windows installation. Asked update-grub to [[https://www.debian.org/releases/bookworm/amd64/release-notes/ch-information.en.html#grub-os-prober][run os-prober]], booted, did "the thing"; then, out of due diligence (at first; quickly replaced by morbid fascination; sustained by existential ennui), attempted to push Windows Update as far as it would go. A lightly edited set of live notes follows; starting with the original boot following the os-prober restoration. **** Boot the Ⅰst - "let's finish setting up your PC" ??? [fn:winup-boot1-setup] - installed kingston manager thingy [fn:winup-boot1-kingston] - waiting for updates to finish - waiting… - "2023-10 Cumulative Update" stuck at "Downloading - 5%" 🤷 - welp, does not seem to progress anymore, and there are updates pending restart, so let's [fn:winup-boot1-setup] This Windows installation was, AFAIR, pretty well "set up" when last I booted it. Hence my surprise at this greeting. [fn:winup-boot1-kingston] The [[https://www.kingston.com/en/support/technical/ssdmanager][Kingston® SSD Manager]]. My main reason for turning on that Windows system, to be able to upgrade the firmware of amdahl30's primary SSD. **** Boot the Ⅱnd - "give us a minute" FFFFFUUUUUUUU - "we're updating Xbox Game Bar" WAT [fn:winup-boot2-xbox] - "your version of windows 11 has reached end of service" - "click here to download a newer version of windows 11 to stay supported" - ffs - Windows Update not doing anything; "download now" greyed out; "cumulative update" dropped down to /0%/ - 100% CPU still burning 🤷 - update running… - "antimalware service executable" taking 50% CPU during the update [fn:winup-boot2-xbox] I have never owned an Xbox, nor have I ever used this Windows installation for anything game-related (beside downloading & running [[https://www.pj64-emu.com/][Project64]] that one time, to evaluate how well that laptop could handle N64 emulation). **** Boot the Ⅲrd - "windows 11, version 23H2" - hope I don't have to go through =2{4H{1,2},5H1}= 😬 - "need more disk space" are you kidding me - removing my music then…[fn:winup-boot3-space] - "almost ready" - "we need to do a few more things before you can update. we'll let you know when we're done and what to do next" - wtf [fn:winup-boot3-space] I, perhaps unwisely, split my 128 GB drive into two roughly equal-sized chunks, one for Windows, one for Debian. The former sitting unused, I had dumped something like 5–10 gigs worth of media onto it. **** Boot the Ⅳth - "Your computer may restart a few times" - YOU DON'T SAY - 1h later it's still at 9% - I think I'm going to sleep tho; which means it will probably reboot to Debian without completing 🙄 **** Boot the Ⅴth Mornin' Debian; no, actually I was installing Windows updates, you can go back to sleep mate. Windows is probably done with the external storage, right? Detaching. **** Boot the Ⅵth - "❌ please reattach external storage" - /I freed 5 gigs of Music for you/ - not even tumbleweed full-distro rebuilds are that big **** Boot the Ⅶth - "you're up to date (last checked: yesterday, 9:01 PM)" - first of all Windows Update: you just spent 15s loading; why is the last check yesterday evening? What were you doing during this 15s load? - second, isn't there, like, a 24H2 or something? - "check for updates" again please - "updates available" 🤪 - some downloads later… - "you're up to date" - /also on the very same window/ "2025-02 Cumulative Update Preview for Windows 11 Version 23H2" to "Download & install" - 🎭 - seriously though, is there not an option to climb to 24H2? why go for the "preview" of [[https://en.wikipedia.org/wiki/Windows_11_version_history][a /maintenance/ release]]? - maybe a reboot will fix it 🙃 - woah =⊞ restart=… - proposes (LLM-backed?) completion - says "restart apps after signing in" is the "best match" - woaaah, =⊞ reboot=… says the "best match" is a 2022 TV show 🤣 - the right margin even autoplays the trailer - the right margin also shows "results ranked by relevance" and /the first one/ is a Microsoft Support link to "restart (reboot)" your PC - OK fine, that was "fun"; luckily =⊞-x u r= still works **** Boot the Ⅷth - well, no, I still must install this "oldstable preview" - OK then; do that **** Boot the Ⅸth - "check for updates" - {{{narrator(thinks a lot)}}} - "you're up to date (last checked: today, 9:02 AM)" - what are you talking about? It's 9:42, you've just booted, and /spent thirty seconds checking for updates/ how can the last check be 40 minutes ago?? - {{{narrator(thinks a lot /again/)}}} - "you're right 🤪" - "have a security intelligence update" - "also, 24H2 is available" - just to be on the safe side, start with the "intelligence update" then reboot **** Boot the Ⅹth - alright then, "download & install" 24H2 - creeps up to 34% - "making sure you're ready to install (this may take a few minutes) (please wait)" - I assure you Windows /I/ am ready to install; please stop projecting - (wait hang on; why are you saying it's 10:26 AM Paris time; it's 11:26 AM Paris time you goof) - "last successful time synchronization: 1/8/2022 7:01:49 PM" 🤣 - "what needs your attention" - "this PC can't be upgraded to this version of Windows" - "your PC isn't supported yet on this version of Windows" - what have you spent the last 30 minutes doing? how do you realize this /34% into the installation process??/ - there's only a "refresh" button that does nothing - close - "are you sure you want to quit?" /you will literally not let me do anything else; why are you asking me??/ - well then; perhaps disk size? - mmm only 6 GB free on =C:/= - ah, perhaps the 7 GB =C:/Windows.old= directory is a problem 🙄 - let's install windirstat I guess - winget is neat! - I have basically 2 GB of personal files; everything else is Windows cruft - "System → Storage → Cleanup recommendations" agrees we can reclaim the 7 GB =Windows.old= **** Alas That was all the energy I could muster this week-end. We might not have updated all the way to 24H2, and we might never succeed! All the same, we laughed, we cried; quality entertainment. Sort of. * 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 🤷