Public bug reported:
$ snap version
snap 2.47.1+20.10
snapd 2.47.1+20.10
series 16
ubuntu 20.10
kernel 5.8.0-22-generic
System fully up to date
Symptom: I cannot launch any snap. Running from a terminal shows for example:
$ spotify
cannot stat /var/lib/snapd/seccomp/bpf/snap.spotify.spotify.bin: No such file
or directory
snap list returns the list of snaps
snap changes reports one error:
ID Status Spawn Ready Summary
65 Error today at 13:04 CEST today at 13:06 CEST Auto-refresh snaps
"snapd", "squirrelsql"
Details for this changes report:
$ snap change 65
Status Spawn Ready Summary
Done today at 13:04 CEST today at 13:06 CEST Ensure prerequisites for
"snapd" are available
Undone today at 13:04 CEST today at 13:06 CEST Download snap "snapd" (9607)
from channel "latest/stable"
Done today at 13:04 CEST today at 13:06 CEST Fetch and check assertions
for snap "snapd" (9607)
Undone today at 13:04 CEST today at 13:06 CEST Mount snap "snapd" (9607)
Undone today at 13:04 CEST today at 13:06 CEST Run pre-refresh hook of
"snapd" snap if present
Undone today at 13:04 CEST today at 13:06 CEST Stop snap "snapd" services
Undone today at 13:04 CEST today at 13:04 CEST Remove aliases for snap
"snapd"
Undone today at 13:04 CEST today at 13:04 CEST Make current revision for
snap "snapd" unavailable
Undone today at 13:04 CEST today at 13:04 CEST Copy snap "snapd" data
Error today at 13:04 CEST today at 13:04 CEST Setup snap "snapd" (9607)
security profiles
Hold [...]
Full log from that time attached to the bug report in journal.log
$ ls -ld /snap/snapd/*/usr/lib/snapd/snap-seccomp
-rwxr-xr-x 1 root root 2306928 sept. 4 18:33
/snap/snapd/9279/usr/lib/snapd/snap-seccomp
-rwxr-xr-x 1 root root 2306928 sept. 30 06:59
/snap/snapd/9607/usr/lib/snapd/snap-seccomp
-rwxr-xr-x 1 root root 2306928 sept. 30 06:59
/snap/snapd/current/usr/lib/snapd/snap-seccomp
There is no version 8790
$ sudo ls -l /proc/70906/exe
[...]
lrwxrwxrwx 1 root root 0 oct. 14 15:02 /proc/70906/exe -> /usr/lib/snapd/snapd
refreshing snapd manually "fixes" the issue.
** Affects: snapd (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "journal.log"
https://bugs.launchpad.net/bugs/1899794/+attachment/5422242/+files/journal.log
** Summary changed:
- snapd error during refresh
+ snapd error during refresh leads to unusable system
** Summary changed:
- snapd error during refresh leads to unusable system
+ Error during refresh of snapd leads to unusable system
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https://bugs.launchpad.net/bugs/1899794
Title:
Error during refresh of snapd leads to unusable system
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