Today when I launch a previously working snap store plex-htpc on Ubuntu linux I get an error message
“FATAL:credentials.cc(123)] Check failed: . : Permission denied (13)
Trace/breakpoint trap (core dumped)”
I deleted the snap version and installed the flatpak plex-htpc and all is well again. The server is fine as I can display using the snap store plex-htpc on another client. Server and client are latest versions.
Has anyone else seen this?
I’m also seeing this. System log shows possible apparmor issue:
[ 855.656108] audit: type=1400 audit(1728416191.792:268): apparmor="DENIED" operation="symlink" class="file" profile="snap.plex-htpc.plex-htpc" name="/dev/char/195:255" pid=7584 comm="Plex" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 855.656254] audit: type=1400 audit(1728416191.792:269): apparmor="DENIED" operation="symlink" class="file" profile="snap.plex-htpc.plex-htpc" name="/dev/char/195:254" pid=7584 comm="Plex" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 855.656321] audit: type=1400 audit(1728416191.792:270): apparmor="DENIED" operation="symlink" class="file" profile="snap.plex-htpc.plex-htpc" name="/dev/char/195:0" pid=7584 comm="Plex" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 855.656432] audit: type=1400 audit(1728416191.792:271): apparmor="DENIED" operation="symlink" class="file" profile="snap.plex-htpc.plex-htpc" name="/dev/char/195:0" pid=7584 comm="Plex" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 855.658637] audit: type=1107 audit(1728416191.794:272): pid=1055 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/DBus" interface="org.freedesktop.DBus" member="ListNames" mask="send" name="org.freedesktop.DBus" pid=7584 label="snap.plex-htpc.plex-htpc" peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 855.693388] audit: type=1400 audit(1728416191.829:273): apparmor="DENIED" operation="symlink" class="file" profile="snap.plex-htpc.plex-htpc" name="/dev/char/195:254" pid=7584 comm="Plex" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 855.934198] audit: type=1400 audit(1728416192.070:274): apparmor="DENIED" operation="userns_create" class="namespace" profile="snap.plex-htpc.plex-htpc" pid=7584 comm="Plex" requested="userns_create" denied="userns_create"
[ 855.934226] traps: Plex[7584] trap int3 ip:77e450d3ef24 sp:7ffc1242b720 error:0 in libQt6WebEngineCore.so.6[77e44ec8f000+5f6f000]
But I am woefully unqualified to debug this
I just checked my system log. It also has a bunch of apparmor=DENIED in it as follows. Some dev might look here and know what the fix is. On the positive side, the flatpak version of plex-htpc worked flawlessly last night.
2024-10-08T18:18:19.592277+11:00 dellbed systemd[3482]: Started snap.plex-htpc.plex-htpc-85167201-1c7a-4cba-964f-4616f
684e77c.scope.
2024-10-08T18:18:20.108247+11:00 dellbed kernel: audit: type=1400 audit(1728371900.106:299): apparmor=“DENIED” operati
on=“open” class=“file” profile=“snap.plex-htpc.plex-htpc” name=“/home/marty/.config/kdedefaults/kdeglobals” pid=7865 c
omm=“Plex” requested_mask=“r” denied_mask=“r” fsuid=1000 ouid=1000
2024-10-08T18:18:20.232263+11:00 dellbed kernel: audit: type=1326 audit(1728371900.230:300): auid=1000 uid=1000 gid=10
00 ses=4 subj=snap.plex-htpc.plex-htpc pid=7865 comm=“Plex” exe=“/snap/plex-htpc/67/bin/Plex” sig=0 arch=c000003e sysc
all=203 compat=0 ip=0x77305e6ec741 code=0x50000
2024-10-08T18:18:20.934339+11:00 dellbed kernel: audit: type=1400 audit(1728371900.931:301): apparmor=“DENIED” operati
on=“file_mmap” class=“file” profile=“snap.plex-htpc.plex-htpc” name=“/dev/zero” pid=7865 comm=“Plex” requested_mask="m
" denied_mask=“m” fsuid=1000 ouid=0
2024-10-08T18:18:20.945305+11:00 dellbed kernel: audit: type=1400 audit(1728371900.943:302): apparmor=“DENIED” operati
on=“userns_create” class=“namespace” profile=“snap.plex-htpc.plex-htpc” pid=7865 comm=“Plex” requested=“userns_create”
denied=“userns_create”
2024-10-08T18:18:21.502445+11:00 dellbed systemd[3482]: snap.plex-htpc.plex-htpc-85167201-1c7a-4cba-964f-4616f684e77c.
scope: Consumed 1.228s CPU time.
2024
Same here, I have 2 linux mint 22 (Ubuntu 24.04) computers and exactly the same error, could be smart to let us install the N previous version from snap, to be able to roll-back to a working version.
I can also confirm that the flatpak package works.
We haven’t changed how the snap is packaged nor permissions nor anything that should be related to this. I can only conclude that something has changed in snap itself.
I would encourage users to switch to flatpak regardless. We implemented snap first because at the time it appeared to be the more popular but that has since shifted in a major way such that snap is in high disfavor.
The snap package works again, like you said it was probably an issue with snap itself.
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