February 2021 - Talk - lists.gtalug.org

war story: power failure makes CentOS system unbootable
by D. Hugh Redelmeier 30 Sep '22

30 Sep '22

tl;dr / spoiler: change fstab so that /boot/efi is not automatically mounted. See the recommendation at the end of this message. My gateway computer is a little PC running CentOS. It does not come back after a power failure. The reason (as best I can tell) is interesting and I think that I have a fix. My system is UEFI. It boots from a UEFI system partition, known as /boot/efi to Linux. If this gets corrupted, it won't boot. It is a VFAT partition. On my gateway (a Zotac Zbox RI321, a cute little box with two ethernet ports), the UEFI firmware apparently won't boot if the dirty bit is set in the system partition. CentOS normally runs with /boot/efi mounted. So when the system isn't shut down cleanly, the dirty bit will be on. Consequence: the system is not going to boot after a power failure. Odd observation 1: if I put a live Fedora 25 USB stick in the system and try to boot in this otherwise-unbootable state, CentOS boots from the main disk. So this really looks like a firmware bug/quirk. Odd observation 2: fsck doesn't seem to automatically fix the system partition. Once CentOS 7 booted, I dismounted /boot/efi and did an fsck on it. $ sudo fsck /dev/sda1 fsck from util-linux 2.23.2 fsck.fat 3.0.20 (12 Jun 2013) 0x25: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt. 1) Remove dirty bit 2) No action ? 1 Leaving filesystem unchanged. /dev/sda1: 16 files, 2420/51145 clusters Googling got me to <https://www.centos.org/forums/viewtopic.php?t=50917> In particular, this advice seemed quite good: ==== recommendation ==== Two other changes I recommend for UEFI systems, to each OS's /etc/fstab. - For the /boot/efi mountpoint, add the mount options x-systemd.automount,noauto - Change fs_passno (last column) to a 1 or 2; the canonical fstab instructions suggest 2, but systemd treats 1 and 2 as the same. The first change means the EFI System partition will not be automatically read-write mounted at boot time; it's a bad idea this is the default because it puts the ESP at risk especially if ther are crashes, FAT has no journal and will therefore always be marked dirty in such a case; no other UEFI OS mounts the ESP by default. Second, if anything tries to access /boot/efi (read or write), systemd will automatically mount it, and because of the fs_passno 1 or 2, it will fsck it first and that fixes and clears the dirty bit in case it's set. Right now without these changes, it's just a matter of having the right number and bad timing of crashes to render the EFI System partition corrupt.

3 9

Importing mbox into Thunderbird?
by William Park 22 Mar '21

22 Mar '21

I'm beginning to like Thunderbird. It replaces fetchmail, procmail, sendmail, mutt, and vim for mailing. I miss vim, though. Now, the question on hand... I have lots of "mbox" format files of old emails. How do I import into Thunderbird? Online talks about "Import MBOX file" under "Tools". But, mine (68.12.0) don't have such entry.

8 7

Systemd dbus issues with cgroups V2 and USB-PS
by Russell Reiter 26 Feb '21

26 Feb '21

I recently installed Fedora 33 after in place system upgrades from 31 to 32 presented a host of issues with dbus-launch and now on F33, the danged mouse keeps losing power, not sleeping but turning off. uname -a Linux SOLON.ht.home 5.10.16-200.fc33.x86_64 #1 SMP Sun Feb 14 03:02:32 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux I had to install the Nvidia firmware on my Ti 1050 in order to access the kaffeine GUI which is a great wraparound for VLC. In the first system upgrade the GUI wouldn't launch from the desktop widget and from a terminal it said try export $(dbus-launch) so I did that and the GUI worked except that the video stream played outside the bounding box and rendered the point and click menu useless, I installed F33 and the Nvidia drivers and the dbus issues seem to have been abated, except for the mouse shutting off completely For a current session. if I do sudo echo -1> /sys/module/usbcore/parameters/autosuspend it apparently solves the problem for the current session however I'd like that condition to survive reboot. Ideally this would be in a systemd unit file. However I'm not sure where to make the change. I did try Lennart Poettering suggestion of adding a 61-autosuspend-manual.rules when he was rejecting certain bug reports and he mentioned that the issue is better solved in udev. I put this in a rule file but still, after a reboot and a certain amount of inactivity, the power to the mouse still shuts off. # Logitech Corp. Wheel Mouse Optical ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="046d", ATTR{idProduct}=="c077", TEST=="power/control", ATTR{power/control}="on" I want to avoid using a RUN feature from a udev rule because I'm not sure that a spontaneous disconnect could be used effectively to trigger a rule event, although that is what I'm considering. At this point ps xawf -eo pid,user,cgroup,args lists the following. This points to 0::/system.slice/upower.ser /usr/libexec/upowerd [russell@SOLON ~]$ psa PID USER CGROUP COMMAND 2 root - [kthreadd] 3 root - \_ [rcu_gp] 4 root - \_ [rcu_par_gp] 6 root - \_ [kworker/0:0H-events_highpri] 9 root - \_ [mm_percpu_wq] 10 root - \_ [rcu_tasks_kthre] 11 root - \_ [rcu_tasks_rude_] 12 root - \_ [rcu_tasks_trace] 13 root - \_ [ksoftirqd/0] 14 root - \_ [rcu_sched] 15 root - \_ [migration/0] 16 root - \_ [cpuhp/0] 17 root - \_ [cpuhp/1] 18 root - \_ [migration/1] 19 root - \_ [ksoftirqd/1] 21 root - \_ [kworker/1:0H-kblockd] 22 root - \_ [cpuhp/2] 23 root - \_ [migration/2] 24 root - \_ [ksoftirqd/2] 26 root - \_ [kworker/2:0H-kblockd] 27 root - \_ [cpuhp/3] 28 root - \_ [migration/3] 29 root - \_ [ksoftirqd/3] 31 root - \_ [kworker/3:0H-events_highpri] 32 root - \_ [cpuhp/4] 33 root - \_ [migration/4] 34 root - \_ [ksoftirqd/4] 36 root - \_ [kworker/4:0H-events_highpri] 37 root - \_ [cpuhp/5] 38 root - \_ [migration/5] 39 root - \_ [ksoftirqd/5] 41 root - \_ [kworker/5:0H-events_highpri] 42 root - \_ [cpuhp/6] 43 root - \_ [migration/6] 44 root - \_ [ksoftirqd/6] 46 root - \_ [kworker/6:0H-events_highpri] 47 root - \_ [cpuhp/7] 48 root - \_ [migration/7] 49 root - \_ [ksoftirqd/7] 51 root - \_ [kworker/7:0H-events_highpri] 52 root - \_ [cpuhp/8] 53 root - \_ [migration/8] 54 root - \_ [ksoftirqd/8] 56 root - \_ [kworker/8:0H-events_highpri] 57 root - \_ [cpuhp/9] 58 root - \_ [migration/9] 59 root - \_ [ksoftirqd/9] 61 root - \_ [kworker/9:0H-events_highpri] 62 root - \_ [cpuhp/10] 63 root - \_ [migration/10] 64 root - \_ [ksoftirqd/10] 66 root - \_ [kworker/10:0H-events_highpri] 67 root - \_ [cpuhp/11] 68 root - \_ [migration/11] 69 root - \_ [ksoftirqd/11] 71 root - \_ [kworker/11:0H-kblockd] 72 root - \_ [kdevtmpfs] 73 root - \_ [netns] 74 root - \_ [kauditd] 75 root - \_ [oom_reaper] 76 root - \_ [writeback] 77 root - \_ [kcompactd0] 78 root - \_ [ksmd] 79 root - \_ [khugepaged] 99 root - \_ [cryptd] 147 root - \_ [kintegrityd] 148 root - \_ [kblockd] 149 root - \_ [blkcg_punt_bio] 151 root - \_ [tpm_dev_wq] 152 root - \_ [ata_sff] 153 root - \_ [md] 154 root - \_ [edac-poller] 155 root - \_ [devfreq_wq] 156 root - \_ [watchdogd] 157 root - \_ [kworker/0:1H-kblockd] 159 root - \_ [kswapd0] 161 root - \_ [kthrotld] 162 root - \_ [irq/121-aerdrv] 163 root - \_ [irq/122-aerdrv] 164 root - \_ [irq/123-aerdrv] 165 root - \_ [irq/124-aerdrv] 166 root - \_ [irq/125-aerdrv] 167 root - \_ [irq/126-aerdrv] 168 root - \_ [acpi_thermal_pm] 169 root - \_ [scsi_eh_0] 170 root - \_ [scsi_tmf_0] 171 root - \_ [scsi_eh_1] 172 root - \_ [scsi_tmf_1] 173 root - \_ [scsi_eh_2] 174 root - \_ [scsi_tmf_2] 175 root - \_ [scsi_eh_3] 176 root - \_ [scsi_tmf_3] 177 root - \_ [scsi_eh_4] 178 root - \_ [scsi_tmf_4] 179 root - \_ [scsi_eh_5] 180 root - \_ [scsi_tmf_5] 188 root - \_ [dm_bufio_cache] 193 root - \_ [ipv6_addrconf] 194 root - \_ [kworker/10:1H-kblockd] 200 root - \_ [kstrp] 241 root - \_ [zswap-shrink] 249 root - \_ [kworker/11:1H-kblockd] 250 root - \_ [kworker/5:2-mm_percpu_wq] 283 root - \_ [kworker/6:1H-kblockd] 313 root - \_ [kworker/5:1H-kblockd] 314 root - \_ [kworker/4:1H-kblockd] 405 root - \_ [kworker/7:1H-kblockd] 407 root - \_ [kworker/6:2-mm_percpu_wq] 443 root - \_ [kworker/8:1H-kblockd] 444 root - \_ [kworker/9:1H-kblockd] 446 root - \_ [nvme-wq] 447 root - \_ [nvme-reset-wq] 448 root - \_ [nvme-delete-wq] 472 root - \_ [nv_queue] 473 root - \_ [nv_queue] 474 root - \_ [nvidia-modeset/] 475 root - \_ [nvidia-modeset/] 481 root - \_ [btrfs-worker] 482 root - \_ [btrfs-worker-hi] 483 root - \_ [btrfs-delalloc] 484 root - \_ [btrfs-flush_del] 485 root - \_ [btrfs-cache] 486 root - \_ [btrfs-fixup] 487 root - \_ [btrfs-endio] 488 root - \_ [btrfs-endio-met] 489 root - \_ [btrfs-endio-met] 490 root - \_ [btrfs-endio-rai] 491 root - \_ [btrfs-rmw] 492 root - \_ [btrfs-endio-wri] 493 root - \_ [btrfs-freespace] 494 root - \_ [btrfs-delayed-m] 495 root - \_ [btrfs-readahead] 496 root - \_ [btrfs-qgroup-re] 497 root - \_ [btrfs-cleaner] 498 root - \_ [btrfs-transacti] 563 root - \_ [kworker/2:1H-kblockd] 568 root - \_ [kworker/1:1H-kblockd] 609 root - \_ [kworker/3:1H-kblockd] 663 root - \_ [irq/174-mei_me] 684 root - \_ [cfg80211] 687 root - \_ [led_workqueue] 700 root - \_ [jbd2/nvme0n1p2-] 701 root - \_ [ext4-rsv-conver] 709 root - \_ [loop0] 712 root - \_ [pktcdvd0] 720 root - \_ [irq/175-iwlwifi] 759 root - \_ [rpciod] 760 root - \_ [xprtiod] 836 root - \_ [psimon] 2119 root - \_ [krfcommd] 3407 root - \_ [jfsIO] 3408 root - \_ [jfsCommit] 3409 root - \_ [jfsCommit] 3410 root - \_ [jfsCommit] 3411 root - \_ [jfsCommit] 3412 root - \_ [jfsCommit] 3413 root - \_ [jfsCommit] 3414 root - \_ [jfsCommit] 3415 root - \_ [jfsCommit] 3416 root - \_ [jfsCommit] 3417 root - \_ [jfsCommit] 3418 root - \_ [jfsCommit] 3419 root - \_ [jfsCommit] 3420 root - \_ [jfsSync] 3426 root - \_ [xfsalloc] 3427 root - \_ [xfs_mru_cache] 18924 root - \_ [jbd2/sda8-8] 18925 root - \_ [ext4-rsv-conver] 50654 root - \_ [kworker/2:0-events] 50669 root - \_ [kworker/u25:3-rb_allocator] 50671 root - \_ [kworker/u25:5-rb_allocator] 51001 root - \_ [kworker/6:1-events] 51003 root - \_ [kworker/8:4-events] 51008 root - \_ [kworker/1:4-mm_percpu_wq] 51083 root - \_ [kworker/9:0-events] 51131 root - \_ [irq/177-nvidia] 51132 root - \_ [nvidia] 51133 root - \_ [nv_queue] 52197 root - \_ [kworker/11:0-events] 52199 root - \_ [kworker/3:0-cgroup_destroy] 53208 root - \_ [kworker/u24:0-btrfs-endio-write] 53394 root - \_ [kworker/4:1-mm_percpu_wq] 53693 root - \_ [kworker/u24:11-btrfs-endio-write] 53778 root - \_ [kworker/10:2-events_power_efficient] 53885 root - \_ [kworker/1:0] 53895 root - \_ [kworker/2:2-events] 53896 root - \_ [kworker/3:2-mm_percpu_wq] 53952 root - \_ [kworker/7:2-mm_percpu_wq] 54039 root - \_ [kworker/u24:5-btrfs-endio] 54200 root - \_ [kworker/5:0-events] 54449 root - \_ [kworker/u24:6-btrfs-endio-meta] 54548 root - \_ [kworker/10:0-events] 54676 root - \_ [kworker/8:1-events] 54677 root - \_ [kworker/0:2-events] 54888 root - \_ [kworker/u24:13-flush-btrfs-1] 54970 root - \_ [kworker/0:0] 54973 root - \_ [kworker/11:1-events] 55012 root - \_ [kworker/7:1-events] 55049 root - \_ [kworker/u24:1-btrfs-endio] 55105 root - \_ [kworker/9:2-events] 55147 root - \_ [kworker/4:2-mm_percpu_wq] 55154 root - \_ [kworker/u24:2-events_unbound] 55184 root - \_ [kworker/4:0-mm_percpu_wq] 55185 root - \_ [kworker/u24:3-btrfs-endio-write] 55247 root - \_ [kworker/u24:4-btrfs-endio] 1 root 0::/init.scope /usr/lib/systemd/systemd --switched-root --system --deserialize 30 597 root 0::/system.slice/systemd-jo /usr/lib/systemd/systemd-journald 610 root 0::/system.slice/systemd-ud /usr/lib/systemd/systemd-udevd 748 systemd+ 0::/system.slice/systemd-re /usr/lib/systemd/systemd-resolved 749 root 0::/system.slice/auditd.ser /sbin/auditd 790 dbus 0::/system.slice/dbus-broke /usr/bin/dbus-broker-launch --scope system --audit 792 dbus 0::/system.slice/dbus-broke \_ dbus-broker --log 4 --controller 9 --machine-id e393071f431a40d3b45ab81e48c852f4 -- 793 root 0::/system.slice/ModemManag /usr/sbin/ModemManager 794 avahi 0::/system.slice/avahi-daem avahi-daemon: running [linux.local] 822 avahi 0::/system.slice/avahi-daem \_ avahi-daemon: chroot helper 795 root 0::/system.slice/bluetooth. /usr/libexec/bluetooth/bluetoothd 797 earlyoom 0::/system.slice/earlyoom.s /usr/bin/earlyoom -r 0 -m 4 -M 409600 --prefer ^Web Content$ --avoid ^(dnf|packagekitd| 798 root 0::/system.slice/firewalld. /usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid 801 root 0::/system.slice/low-memory /usr/libexec/low-memory-monitor 803 root 0::/system.slice/mcelog.ser /usr/sbin/mcelog --ignorenodev --daemon --foreground 805 root 0::/system.slice/rngd.servi /sbin/rngd -f 806 rtkit 0::/system.slice/rtkit-daem /usr/libexec/rtkit-daemon 807 root 0::/system.slice/sssd.servi /usr/sbin/sssd -i --logger=files 1000 root 0::/system.slice/sssd.servi \_ /usr/libexec/sssd/sssd_be --domain implicit_files --uid 0 --gid 0 --logger=files 1080 root 0::/system.slice/sssd.servi \_ /usr/libexec/sssd/sssd_nss --uid 0 --gid 0 --logger=files 809 root 0::/system.slice/switcheroo /usr/libexec/switcheroo-control 810 root 0::/system.slice/systemd-ho /usr/lib/systemd/systemd-homed 813 root 0::/system.slice/systemd-ma /usr/lib/systemd/systemd-machined 815 root 0::/system.slice/thermald.s /usr/sbin/thermald --systemd --dbus-enable --adaptive 818 root 0::/system.slice/udisks2.se /usr/libexec/udisks2/udisksd 819 root 0::/system.slice/upower.ser /usr/libexec/upowerd 849 root 0::/system.slice/alsa-state /usr/sbin/alsactl -s -n 19 -c -E ALSA_CONFIG_PATH=/etc/alsa/alsactl.conf --initfile=/li 851 chrony 0::/system.slice/chronyd.se /usr/sbin/chronyd 905 polkitd 0::/system.slice/polkit.ser /usr/lib/polkit-1/polkitd --no-debug 906 root 0::/system.slice/abrtd.serv /usr/sbin/abrtd -d -s 926 root 0::/system.slice/abrt-journ /usr/bin/abrt-dump-journal-core -D -T -f -e 927 root 0::/system.slice/abrt-oops. /usr/bin/abrt-dump-journal-oops -fxtD 928 root 0::/system.slice/abrt-xorg. /usr/bin/abrt-dump-journal-xorg -fxtD 1171 root 0::/system.slice/NetworkMan /usr/sbin/NetworkManager --no-daemon 1172 root 0::/system.slice/accounts-d /usr/libexec/accounts-daemon 1174 root 0::/system.slice/systemd-lo /usr/lib/systemd/systemd-logind 1183 root 0::/system.slice/cups.servi /usr/sbin/cupsd -l 1189 root 0::/system.slice/gssproxy.s /usr/sbin/gssproxy -D 1231 root 0::/system.slice/pcscd.serv /usr/sbin/pcscd --foreground --auto-exit 1320 root 0::/system.slice/wpa_suppli /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -u -s 1404 root 0::/system.slice/atd.servic /usr/sbin/atd -f 1405 root 0::/system.slice/crond.serv /usr/sbin/crond -n 1406 root 0::/system.slice/gdm.servic /usr/sbin/gdm 51468 root 0::/user.slice/user-1000.sl \_ gdm-session-worker [pam/gdm-password] 51511 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gdm-x-session --run-script /usr/bin/gnome-session 51513 root 0::/user.slice/user-1000.sl \_ /usr/libexec/Xorg vt3 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -nol 51555 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gnome-session-binary 1426 root 0::/system.slice/systemd-us /usr/lib/systemd/systemd-userdbd 55249 root 0::/system.slice/systemd-us \_ systemd-userwork 55250 root 0::/system.slice/systemd-us \_ systemd-userwork 55253 root 0::/system.slice/systemd-us \_ systemd-userwork 1439 root 0::/system.slice/uresourced /usr/libexec/uresourced 1554 dnsmasq 0::/system.slice/libvirtd.s /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dh 1555 root 0::/system.slice/libvirtd.s \_ /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro 1654 geoclue 0::/system.slice/geoclue.se /usr/libexec/geoclue 1665 root 0::/system.slice/packagekit /usr/libexec/packagekitd 1774 colord 0::/system.slice/colord.ser /usr/libexec/colord 1926 russell 0::/user.slice/user-1000.sl /usr/lib/systemd/systemd --user 1932 russell 0::/user.slice/user-1000.sl \_ (sd-pam) 2341 russell 0::/user.slice/user-1000.sl \_ baloo_file 51102 russell 0::/user.slice/user-1000.sl \_ /usr/bin/dbus-broker-launch --scope user 51103 russell 0::/user.slice/user-1000.sl | \_ dbus-broker --log 4 --controller 11 --machine-id e393071f431a40d3b45ab81e48c852 51600 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/at-spi-bus-launcher 51605 russell 0::/user.slice/user-1000.sl | \_ /usr/bin/dbus-broker-launch --config-file=/usr/share/defaults/at-spi2/accessibi 51606 russell 0::/user.slice/user-1000.sl | \_ dbus-broker --log 4 --controller 9 --machine-id e393071f431a40d3b45ab81e48c 51611 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gnome-session-ctl --monitor 51612 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/uresourced --user 51614 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gnome-session-binary --systemd-service --session=gnome 51838 russell 0::/user.slice/user-1000.sl | \_ baloo_file 51845 russell 0::/user.slice/user-1000.sl | \_ /usr/bin/gnome-software --gapplication-service 51863 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/evolution-data-server/evolution-alarm-notify 51896 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/gsd-disk-utility-notify 51637 russell 0::/user.slice/user-1000.sl \_ /usr/bin/gnome-shell 51673 russell 0::/user.slice/user-1000.sl | \_ ibus-daemon --panel disable --xim 51683 russell 0::/user.slice/user-1000.sl | | \_ /usr/libexec/ibus-dconf 51685 russell 0::/user.slice/user-1000.sl | | \_ /usr/libexec/ibus-extension-gtk3 51995 russell 0::/user.slice/user-1000.sl | | \_ /usr/libexec/ibus-engine-simple 52285 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox 52354 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -childID 1 -isForBrowser -prefsLen 52410 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -prefsLen 52487 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -childID 3 -isForBrowser -prefsLen 52587 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -parentBuildID 20210208183217 -pref 52806 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -childID 5 -isForBrowser -prefsLen 54822 russell 0::/user.slice/user-1000.sl | \_ /usr/lib64/firefox/firefox -contentproc -childID 9 -isForBrowser -prefsLen 51638 russell 0::/user.slice/user-1000.sl \_ /usr/bin/pulseaudio --daemonize=no --log-target=journal 51660 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/pulse/gconf-helper 51669 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gconfd-2 51676 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfsd 54601 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/gvfsd-trash --spawner :1.25 /org/gtk/gvfs/exec_spaw/0 54708 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/gvfsd-network --spawner :1.25 /org/gtk/gvfs/exec_spaw/1 54721 russell 0::/user.slice/user-1000.sl | \_ /usr/libexec/gvfsd-dnssd --spawner :1.25 /org/gtk/gvfs/exec_spaw/3 51681 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f 51687 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/ibus-x11 --kill-daemon 51698 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/ibus-portal 51706 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/at-spi2-registryd --use-gnome-session 51710 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/xdg-permission-store 51713 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gnome-shell-calendar-server 51720 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/evolution-source-registry 51726 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/goa-daemon 51729 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/evolution-calendar-factory 51744 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/goa-identity-service 51754 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfs-udisks2-volume-monitor 51764 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/dconf-service 51765 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/evolution-addressbook-factory 51774 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfs-mtp-volume-monitor 51781 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfs-gphoto2-volume-monitor 51791 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfs-goa-volume-monitor 51795 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfs-afc-volume-monitor 51802 russell 0::/user.slice/user-1000.sl \_ /usr/bin/gjs /usr/share/gnome-shell/org.gnome.Shell.Notifications 51818 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-a11y-settings 51819 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-color 51824 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-datetime 51830 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-housekeeping 51832 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-keyboard 51837 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-media-keys 51841 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-power 51843 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-print-notifications 51847 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-rfkill 51848 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-screensaver-proxy 51851 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-sharing 51856 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-smartcard 51864 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-sound 51873 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-usb-protection 51876 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-wacom 51881 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-xsettings 51903 russell 0::/user.slice/user-1000.sl \_ /usr/bin/abrt-applet --gapplication-service 52061 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gsd-printer 54616 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gvfsd-metadata 54619 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/tracker-miner-fs-3 55264 russell 0::/user.slice/user-1000.sl \_ /usr/libexec/gnome-terminal-server 55270 russell 0::/user.slice/user-1000.sl \_ bash 55299 russell 0::/user.slice/user-1000.sl \_ ps xawf -eo pid,user,cgroup,args 2246 root 0::/system.slice/sssd-kcm.s /usr/libexec/sssd/sssd_kcm --uid 0 --gid 0 --logger=files 2534 root 0::/system.slice/system-dbu /usr/sbin/abrt-dbus -t133 51112 root 0::/system.slice/system-get /sbin/agetty -o -p -- \u --noclear Also systemctl says the service is active [russell@SOLON ~]$ systemctl status upower.service ● upower.service - Daemon for power management Loaded: loaded (/usr/lib/systemd/system/upower.service; enabled; vendor pr> Active: active (running) since Fri 2021-02-26 08:52:28 EST; 4h 19min ago Docs: man:upowerd(8) Main PID: 819 (upowerd) Tasks: 3 (limit: 9386) Memory: 2.2M CPU: 193ms CGroup: /system.slice/upower.service └─819 /usr/libexec/upowerd but the autoconf state has reverted to 2 on reboot. [russell@SOLON ~]$ cat /sys/module/usbcore/parameters/autosuspend 2 If anybody has any suggestions on which of systemd's - wants - needs - requires and petulantly demands undivided attention in order to keep the mouse alive. I'd appreciate any help. Thanks -- Russell

1 0

question re: bug filing
by o1bigtenor 18 Feb '21

18 Feb '21

Greetings I'm running a computer on Debian testing trying to stay somewhat current for updates. Setup using nouveau for my graphics running 2 graphics cards. LXQT is my desktop 'environment' (if that's the right word??). I'm also running Opera, Firefox LTS and Vivaldi for browsers. Tend to have lots of windows and a plethora of tabs open. Trying to always leave a window with the blank 'home' page to minimize JS issues. Running both uBlock and privacy badger trying to reduce my use information harvesting. Kernel 5.4.0-4 was the last kernel where I didn't find my second graphics card not able to move out of sleep. I did a system upgrade (using apt) more than once and then one did a 'apt autoremove' where the 5.4.0-4 was removed. This behaviour of my second card not coming out of sleep has become quite annoying - - it takes some 20 minutes to set most everything back up to like it was before the forced reboot. So where do I complain (bug report)? To me there is a confluence between the kernel, nvidia, nouveau, lxqt, the browsers and likely JS (although the multitudinous nefarious techniques used by various entities to try and control my computer from this last section would likely be disavowed by any and all involved). IMO this is not the kind of behavior that should be allowed for and by anything called stable (ie Debian is moving to a freeze looking toward a release of a new version of 'stable'). Suggestions? TIA

5 16

micro controllers
by o1bigtenor 17 Feb '21

17 Feb '21

Greetings I'm wanting to use micro controllers in more of an industrial setting. Don't want to spend the $$$$$$$$$$$ to get the officially hardened etc etc etc models. Looking for information - - - - - there's piles on using Arduino, Raspberry Pi but they're not really developed for serious use (one point - - - - almost always have to add a cape or a shield to get real connectivity - - - - don't need the the hp waste that's RPi so I"d rather not use that . . . .) Trying to find other ucontroller boards - - - - can find plenty of SoB - - - - but not boards. Hoping to use open source tools for the programming and control. Any suggestions as to where to look for this kind of stuff? Am I wasting my time? (I hope not!!) TIA Regards

13 15

grub2 on Fedora war story
by D. Hugh Redelmeier 16 Feb '21

16 Feb '21

Anything that can get more complicated will get more complicated. Boot loaders seem to be an example. It used to be straightforward to read /boot/efi/EFI/fedora/grub.cfg. Now, building the list of kernels for the menu is farmed out to blscfg (a grub module). I needed to have a Fedora box default to booting a kernel that isn't the latest (because the latest cannot bring up the display on my computer). 1. I needed to make updates not delete the working kernel. Normally updates keep only the last three kernels. As of today, two are duds. Fix: change /etc/dnf/dnf.conf's installonly_limit from 3 to 0 2. Find the list of kernels known to grub: sudo ls /boot/loader/entries/*.conf 3. set the default to one of those. Use the filename, without the directory and without the .conf sudo grub2-set-default 2733f1c892a5422c98bdb188c4f62737-5.10.9-201.fc33.x86_64 I don't know how long this sticks.

10 17

Weird Bluetooth settings in Network settings
by Joseph Rocklin 13 Feb '21

13 Feb '21

Hi, I just finished experimenting with windows 10. Before I switched to linux, I disabled my wifi network card. I have no complaints. The problem is, now I have a new type of bluetooth connection that activates every time I boot. Even when I've disabled the bluetooth features in the command line (the service also), it comes up every reboot. I think it may have to do with my vpn connection I've implemented. I just don't know and would like to find out. Can anyone fill me in on the reason for these connections popping up every reboot? They are: Bluetooth: Dummy (ipv6leakintrf0) Dummy (pvpnksintrf0) Dummy (pvpnroutintrf0). Thanks for any replies. Joseph

2 1

Alyssa Rosenzweig
by D. Hugh Redelmeier 10 Feb '21

10 Feb '21

Somebody (Trevor?) in today's meeting said that Alyssa is currently living in Toronto. She's done some impressive reverse engineerng of graphics drivers. For example: <https://www.phoronix.com/scan.php?page=news_item&px=Apple-M1-GPU-Triangle-A…> It would be great to invite her to attend or talk at our meetings.

1 0

[GTALUG-Announce] Meeting Today
by hi＠gtalug.org 09 Feb '21

09 Feb '21

https://gtalug.org/meeting/2021-02/ # Lightning talks and Round Table This is GTALUG's version of an un-conference, a loosely structured short talks emphasizing the informal exchange of information and ideas between participants, rather than following a conventionally structured GTALUG meetings. If you already have a topic in mind please send an email to [speakers@gtalug.org](mailto:speakers@gtalug.org) to be added to the list of scheduled talks. A Round Table Q&A Session is where we take questions from the audience, and the audience discusses and attempts to answer those questions from their own knowledge. It's a great way to meet fellow members of our community and discover the skill sets we each bring to the table. Due to global pandemic we are going to hold this session via video conferencing. We're going to use Zoom for this meeting: **Join Zoom Meeting** https://us02web.zoom.us/j/86775332873?pwd=YW03dzBnSGlMdmVBZmJQNC9aSlZmUT09 **Meeting ID:** 867 7533 2873 **Passcode:** 312201 ** Notes on https://etherpad.wikimedia.org/p/gtalug-february ## Schedule * 7:30 pm - Meeting and presentation. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: https://gtalug.org/about/code-of-conduct/ If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ board(a)gtalug.org --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

1 0

How do you send out email?
by William Park 08 Feb '21

08 Feb '21

Hi all, pop.mail.yahoo.ca was rejecting my login while back, but I was able to generate "password" at Yahoo site, and got Fetchmail working again. Now, smtp.mail.yahoo.ca, which I've been using as my outgoing server (SMART_HOST in Sendmail speak), is also rejecting my connection: ----- The following addresses had permanent fatal errors ----- <talk(a)gtalug.org> (reason: 554 Email rejected) ----- Transcript of session follows ----- ... while talking to smtp.mail.yahoo.ca: >>> MAIL From:<opengeometry(a)yahoo.ca> SIZE=865 AUTH=<> <<< 554 Email rejected 554 5.0.0 Service unavailable The solution that worked for Fetchmail is not working for Sendmail. I guess, it's time for upgrade to Postfix. But, I suspect, I'll have the same problem. So, bigger question for you guys... - How do you send out email? via Postfix/Sendmail? Or, via Thunderbird? - How do you read your emails? via Fetchmail/Mutt? Or, via Thunderbird? --William Park

6 6