Snap nextCloud desktop client can't write log file due to apparmor (Ubuntu 22.04)

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1

Hello, I just installed the snap NextCloud desktop client on Ubuntu 22.04. It can’t write the log file due to an apparmor Deny. I desperately need help because I can’t synchronize my files.

This is the message in syslog:

May 16 09:54:44 xxx kernel: [ 3075.066216] audit: type=1400 audit(1652687684.005:292): apparmor="DENIED" operation="mknod" profile="snap.nextcloud-desktop-client.nextcloud" name="/home/xxx/snap/nextcloud-desktop-client/54/.config/Nextcloud/logs/20220516_0954_owncloud.log.0" pid=3405 comm="nextcloud" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000

This is the version that was installed with the upgrade from Ubuntu 21.10 to 22.04.

$ LANG=en snap list nextcloud-desktop-client
Name                      Version  Rev  Tracking       Publisher  Notes
nextcloud-desktop-client  3.5.0    55   latest/stable  glasen     -

This is my snap version

$ LANG=en snap version
snap    2.55.3+22.04ubuntu1
snapd   2.55.3+22.04ubuntu1
series  16
ubuntu  22.04
kernel  5.15.0-27-generic
2

looks like: https://github.com/glasen/snap-nextcloud-desktop-client/issues/5

you should enable refresh-app-awareness, then you will be asked to stop the client for upgrades:

3

Thank you for your help.

What exactly would this do and how would it solve my problem ? I don’t want to stop upgrades of the client. This is what I found confusing in you message.

Just to make sure there is no misunderstanding, NextCloud is a service that synchronize files between a client and a server. It is this synchronization that fails with the error. I had to pause it so that I don’t get an error dialog every 40 seconds.

4

instead of silently upgrading in the background, it will hold the update (for up to 60 days where it will then enforce it) and show you a desktop notification to instead stop the client and manually do a snap refresh, that prevents desktop apps from being upgraded while they are running…

5

OK, I’ll try that but I’m not fully sure the problem is caused by snap trying to upgrade NextCloud.

6

it is not by trying but by simply doing it :slight_smile:

during upgrade your writable directories change to the new ones matching the the new version … the old ones become unwritable at this moment which likely causes your error …

7

I’m sorry. I just understood how to see the initial reference you made by the snap manager. I did what you suggest. Thank you very much.

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