users April 2021

users@lists.fedoraproject.org

93 participants
87 discussions

Automount occasionally failing to auto-unmount
by Patrick O'Callaghan 21 Apr '21

21 Apr '21

I use automount with systemd service units (not /etc/fstab) to mount an external BTRFS filesystem (2 drives configured as RAID-1). There is a timeout of 120 seconds of inactivity after which it should unmount. This works *nearly* all the time, but sometimes it doesn't and I can't figure out why. The drive is normally only used at 3am to run a backup script, and logs show that this is working correctly, but when I check in the morning I sometimes find the drive still mounted (shown by 'findmnt') even though nothing is accessing it, i.e. 'fuser' shows nothing and 'umount' succeeds immediately. If it matters, the actual timeout always seems to take 300 seconds. I don't know if this is because BTRFS is keeping the drive alive, flushing queues or whatever. It's not important in itself, just another data point. When I mount the drive manually, the timeout always succeeds (though again after 300 seconds rather than 120). Any ideas? poc

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ncat and resolved
by Ed Greshko 20 Apr '21

20 Apr '21

Does anyone know of a way to get ncat to listen on port 53 when using systemd-resolved? [root@meimei ~]# ncat -l -4 -p 53 Ncat: bind to 0.0.0.0:53: Address already in use. QUITTING. (no rants, please) -- Remind me to ignore comments which aren't germane to the thread.

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Canon MF642Cdw works as expected on F32 but fails on F33
by dwoody5654＠gmail.com 16 Apr '21

16 Apr '21

I was able to print and scan from Fedora 32 but when I upgraded to Fedora 33, cups shows "waiting for printer to become available". I am using the driver from Canon: linux-UFRII-drv-v520-usen-05.tar.gz. The install.sh that is included looks for the following packages: libjpeg-turbo beecrypt beecrypt-devel libglade2 jbigkit-libs libgcrypt libgcrypt-devel which are installed and current, and all the above packages have had a point increase. The install.sh also states that Fedora is supported. Looking at the jobs page first message is "Rendering is complete", then "Waiting for printer to become available". I called Canon and was told that the driver was not 100% Canon code and that it was unknown when a updated driver would be available. The current driver was released in 09/2020. Any ideas on how to fix or work around, Thanks, David

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aegisub no more working after update...
by François Patte 16 Apr '21

16 Apr '21

Bonjour, I just update my system (fc-32) and aegisub is no more working: I can open subtitlefiles but not the corresponding video... Here the message: (aegisub:347417): Gdk-ERROR **: 12:08:25.195: The program 'aegisub' received an X Window System error. This probably reflects a bug in the program. The error was 'BadValue (integer parameter out of range for operation)'. (Details: serial 37349 error_code 2 request_code 150 (GLX) minor_code 24) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the GDK_SYNCHRONIZE environment variable to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) I don't understand what it means and don't know what to do.... Thank you for any help. -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)6 7892 5822 http://www.math-info.univ-paris5.fr/~patte FSF https://www.fsf.org/blogs/community/presenting-shoetool-happy-holidays-from…

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Third level choosers for keyboard keys.
by AV 16 Apr '21

16 Apr '21

This question is just because I am curious, I don't need the functionality. Is there a way to enable "third and fourth level choosers" in F33/34 Workstation (Gnome) to enable typing a third symbol on keyboard key? F33 gnome-tweaks has an option for a compose key and it works under both Wayland and Xorg. I use it regularly. But I can't find an option for third level. F34 workstation has an extra option to 'Type Special Characters' in gnome-settings with the 2 entries: one for 'Alternate Character Keys' and one for 'Compose Key'. Neither of these seems active (at least with Wayland). But the gnome-tweaks 'compose key' setting still works in F34. (after further investigation I will bugzilla this). And I can't find out what this 'alternate character' option is supposed to do. KDE plasma has settings options for compose and third level but neither of these works under Wayland (not implemented yet). Have not tried Xorg yet. There should be a possibility to edit some config file somewhere but I have not been able to find it. Or is it (still) not enabled under Wayland in any case. AV

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Re: on to letsencrypt
by Richard 15 Apr '21

15 Apr '21

> Date: Thursday, April 15, 2021 19:35:05 -0700 > From: Jack Craig <jack.craig.aptos(a)gmail.com> > > Networksolutions is my registrar, they provide to the world my > domain name my primary and > secondary DNS servers so I guess that's the external place where > you were referring to? Networksolutions is indeed your registrar. It's an extra charge for them to provide your DNS servers. If you are paying for that service you aren't using it as you have things pointing elsewhere: Name Server: NS3.ATTDNS.COM Name Server: WS.LINUXLIGHTHOUSE.COM

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Canon MF642Cdw works as expected on F32 but fails on F33
by D&R 15 Apr '21

15 Apr '21

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NetworkManager IPv6 Router Advertisement tracking
by Adam Chasen 15 Apr '21

15 Apr '21

How and where does NetworkManager track prefixes from Router Announcements? I recently changed my router advertisement to remove a prefix which previously had a 24 hour expiration on it. I thought I would be able to manually remove the removed prefix before expiration from the appropriate connections via `ip` commands, but the address and route come back with every router advertisement I receive on that interface (even though the RA no longer includes the prefix). The address entry show the "count down" of `valid_lft` appropriately: 2: eno1 inet6 xxxx:6081:1a02:1102:b534:7b79:6baa:d27c/64 scope global deprecated tentative dynamic noprefixroute valid_lft 43371sec preferred_lft 0sec I can watch the address from the removed prefix get added via `ip monitor` when a RA comes in (seen with `radvdump`). The router advertisement does not contain the prefix (seen with `radvdump`). NetworkManager manages this connection, but I cannot figure out where/what is tracking the stale (but not expired yet) prefix. I find no references to the prefix in `nmcli connection` outputs (except the "capitalized" runtime keys) and didn't see anything in /var/lib/NetworkManager/ or /run/NetworkManager/. Thanks, Adam

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I think I broke my BTRFS RAID 1 array
by Richard Shaw 14 Apr '21

14 Apr '21

I have been running a 3 disk RAID 1 btrfs array for a few weeks now and simulated more than a dozen power failures without issue. Yesterday I decided to add my 4th disk, which was the original media drive. I was able to add it to the array easy enough and then initiated a full balance, however, when I was trying to squeeze the case panels back on (SATA power cables are stiff!) two of the drives (sdc, sdd) lost power. I didn't notice the problem for a few minutes until I looked at the storage section of Cockpit. I immediately initiated a shutdown and corrected the issue by rerouting the power cables a bit. After booting back up I tried to restart the balance but it would run briefly and then stop. dmesg shows: [ 155.497940] BTRFS info (device sdc): balance: start -d -m -s [ 155.499804] BTRFS info (device sdc): relocating block group 10451967541248 flags data|raid1 [ 162.517172] BTRFS info (device sdc): found 15 extents, stage: move data extents [ 162.776081] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [ 162.776087] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [ 162.776090] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [ 162.855784] BTRFS info (device sdc): balance: ended with status: -117 I ran a scrub and a little over 5 hours later it shows it made 4 corrections: # btrfs scrub start -B /mnt/media scrub done for d9a2a011-77a2-43be-acd1-c9093d32125b Scrub started: Tue Apr 13 17:09:51 2021 Status: finished Duration: 5:20:52 Total to scrub: 7.34TiB Rate: 399.47MiB/s Error summary: verify=4 Corrected: 4 Uncorrectable: 0 Unverified: 0 WARNING: errors detected during scrubbing, corrected However, when I try to balance again I still get errors: [19480.281381] BTRFS info (device sdc): balance: start -d -m -s [19480.298196] BTRFS info (device sdc): relocating block group 10451967541248 flags data|raid1 [19485.587630] BTRFS info (device sdc): found 15 extents, stage: move data extents [19485.801278] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [19485.801287] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [19485.801288] BTRFS error (device sdc): tree level mismatch detected, bytenr=10359313989632 level expected=0 has=2 [19485.865739] BTRFS info (device sdc): balance: ended with status: -117 Where do I go from here? Googling "tree level mismatch detected" shows mostly source code results. Thanks, Richard

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How to kickstart a workstation installation?
by Thomas Cameron 14 Apr '21

14 Apr '21

Right now, if I want a workstation, I use the bootable workstation image on a USB thumb drive and choose to install the workstation image to my hard drive. Then I have to go back afterwards and run a bunch of yum groupinstall commands to get my machine where I want it. Not ideal for multiple installations. I used the F33 Everything DVD image and got closer, but I still don't see a way to use it to kickstart a VM or a desktop. I even used the Fedora Server DVD image and did a bunch of yum groupinstall in %post, but every time I got an error about plymouth and it hung. How the heck do I kickstart a workstation? Preferably from the F33-Everything DVD image so I can set up Xfce. Thomas

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