I have an 18.04 home server which refuses to install core18 which is needed by another snap.
$ snap version
snap 2.38.1
snapd 2.38.1
series 16
ubuntu 18.04
kernel 4.15.0-42-generic
$ snap install core18
error: cannot perform the following tasks:
- Mount snap "core18" (970) ([start snap-core18-970.mount] failed with exit status 1: Job for snap-core18-970.mount failed.
See "systemctl status snap-core18-970.mount" and "journalctl -xe" for details.
)
$ systemctl status snap-core18-970.mount
● snap-core18-970.mount
Loaded: not-found (Reason: No such file or directory)
Active: failed (Result: timeout) since Wed 2019-05-22 12:18:42 BST; 6min ago
CGroup: /system.slice/snap-core18-970.mount
├─ 7118 /bin/mount /var/lib/snapd/snaps/core18_970.snap /snap/core18/970 -t squashfs -o nodev,ro,x-gdu.hide
└─16216 /bin/mount /var/lib/snapd/snaps/core18_970.snap /snap/core18/970 -t squashfs -o nodev,ro,x-gdu.hide
May 22 12:14:12 colossus systemd[1]: Mounting Mount unit for core18, revision 970...
May 22 12:15:42 colossus systemd[1]: snap-core18-970.mount: Mounting timed out. Terminating.
May 22 12:17:12 colossus systemd[1]: snap-core18-970.mount: Mount process timed out. Killing.
May 22 12:17:12 colossus systemd[1]: snap-core18-970.mount: Killing process 16216 (mount) with signal SIGKILL.
May 22 12:17:12 colossus systemd[1]: snap-core18-970.mount: Killing process 7118 (mount) with signal SIGKILL.
May 22 12:18:42 colossus systemd[1]: snap-core18-970.mount: Mount process still around after SIGKILL. Ignoring.
May 22 12:18:42 colossus systemd[1]: snap-core18-970.mount: Failed with result 'timeout'.
May 22 12:18:42 colossus systemd[1]: Failed to mount Mount unit for core18, revision 970.
Any ideas?