Public bug reported:
This is what I did, I had snap installed and I noticed in Krusader all the
squashfs partitions as "unknown", thinking are left overs from updates, I
started unmounting them all.
Soon enough the system became unstable and firefox didn't run anymore, so
instead of rebooting, that probably would've remounted everything and fixed the
issue, I started removing snap packages to reinstall them, but with firefox it
started to hang and so I killed the snap removal process.
Doing so I seemed to brick snap which is saying something is ongoing, but
doesn't let me to abort the interrupted task nor update some snaps anymore.
Despite having done mistakes, why bricking snap is so easy?
1. snap should be able to recover broken installations
2. kusader/kubuntu should warn that unmounting snaps is dangerous
```
snap changes
ID Status Spawn Ready Summary
215 Done today at 09:51 PST today at 09:51 PST Remove "core22" snap
216 Done today at 09:51 PST today at 09:51 PST Install "core22" snap
217 Done today at 09:52 PST today at 09:52 PST Remove "core24" snap
218 Done today at 09:52 PST today at 09:52 PST Install "core24" snap
219 Undo today at 09:52 PST - Remove "firefox" snap
220 Done today at 10:03 PST today at 10:03 PST Remove "core24" snap
221 Done today at 10:03 PST today at 10:03 PST Install "core24" snap
222 Done today at 10:03 PST today at 10:03 PST Remove "core20" snap
223 Done today at 10:03 PST today at 10:03 PST Remove "core18" snap
224 Done today at 10:04 PST today at 10:04 PST Remove "bare" snap
225 Done today at 10:04 PST today at 10:04 PST Install "bare" snap
226 Done today at 10:04 PST today at 10:04 PST Remove "gnome-3-28-1804"
snap
227 Done today at 10:04 PST today at 10:04 PST Remove "gnome-3-38-2004"
snap
228 Done today at 10:05 PST today at 10:05 PST Remove "shotcut" snap
229 Done today at 10:05 PST today at 10:05 PST Install "shotcut" snap
230 Done today at 10:07 PST today at 10:07 PST Remove "mesa-2404" snap
231 Done today at 10:07 PST today at 10:08 PST Install "mesa-2404" snap
232 Done today at 10:08 PST today at 10:08 PST Running service command
for snap "mesa-2404"
233 Done today at 10:08 PST today at 10:08 PST Remove "code" snap
234 Done today at 10:08 PST today at 10:18 PST Remove "thunderbird" snap
```
```
marco@bellavista:~$ sudo snap abort 219
marco@bellavista:~$ sudo snap remove firefox
error: snap "firefox" has "remove-snap" change in progress
```
```
marco@bellavista:~$ snap tasks 219
Status Spawn Ready Summary
Undo today at 09:52 PST today at 09:52 PST Stop snap "firefox" services
Undo today at 09:52 PST today at 09:52 PST Run remove hook of "firefox"
snap if present
Done today at 09:52 PST today at 10:27 PST Disconnect interfaces of snap
"firefox"
Undone today at 09:52 PST today at 09:56 PST Save data of snap "firefox" in
automatic snapshot set #2
Undone today at 09:52 PST today at 09:56 PST Remove aliases for snap
"firefox"
Undone today at 09:52 PST today at 09:56 PST Make snap "firefox" unavailable
to the system
Error today at 09:52 PST today at 09:56 PST Remove security profile for
snap "firefox" (7423)
Done today at 09:52 PST today at 10:27 PST Remove data for snap "firefox"
(7355)
Done today at 09:52 PST today at 10:27 PST Remove snap "firefox" (7355)
from the system
Error today at 09:52 PST today at 09:56 PST Remove data for snap "firefox"
(7423)
Hold today at 09:52 PST today at 09:56 PST Remove snap "firefox" (7423)
from the system
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:dot-mozilla-firefox from snapd:personal-files
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:icon-themes
from gtk-common-themes:icon-themes
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:mount-observe from snapd:mount-observe
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:host-hunspell from snapd:mount-control
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:cups-control
from snapd:cups-control
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:etc-firefox
from snapd:system-files
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:joystick
from snapd:joystick
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:browser-sandbox from snapd:browser-support
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:gtk-3-themes
from gtk-common-themes:gtk-3-themes
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:upower-observe from snapd:upower-observe
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:desktop-legacy from snapd:desktop-legacy
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:u2f-devices
from snapd:u2f-devices
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:gsettings
from snapd:gsettings
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:sound-themes
from gtk-common-themes:sound-themes
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:x11 from
snapd:x11
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:audio-record
from snapd:audio-record
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:network from
snapd:network
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:home from
snapd:home
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:hardware-observe from snapd:hardware-observe
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:screen-inhibit-control from snapd:screen-inhibit-control
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:avahi-observe from snapd:avahi-observe
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:wayland from
snapd:wayland
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:camera from
snapd:camera
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:network-bind
from snapd:network-bind
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:gnome-42-2204 from gnome-42-2204:gnome-42-2204
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:timezone-control from snapd:timezone-control
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:system-packages-doc from snapd:system-packages-doc
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:unity7 from
snapd:unity7
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:removable-media from snapd:removable-media
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:opengl from
snapd:opengl
Error today at 09:52 PST today at 09:56 PST Disconnect firefox:desktop from
snapd:desktop
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:host-usr-share-hunspell from snapd:system-files
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:login-session-observe from snapd:login-session-observe
Error today at 09:52 PST today at 09:56 PST Disconnect
firefox:audio-playback from snapd:audio-playback
......................................................................
Make snap "firefox" unavailable to the system
2025-12-02T09:56:31-08:00 INFO cannot link snap "firefox" back, some of
its data has already been removed
......................................................................
Remove security profile for snap "firefox" (7423)
2025-12-02T09:56:31-08:00 ERROR cannot find installed snap "firefox" at
revision 7423: missing file /snap/firefox/7423/meta/snap.yaml
......................................................................
Remove data for snap "firefox" (7423)
2025-12-02T09:56:31-08:00 ERROR unlinkat /var/snap/firefox/common/host-
hunspell/en_US.dic: read-only file system
......................................................................
Disconnect firefox:dot-mozilla-firefox from snapd:personal-files
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "dot-mozilla-
firefox" plug
......................................................................
Disconnect firefox:icon-themes from gtk-common-themes:icon-themes
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "icon-themes" plug
......................................................................
Disconnect firefox:mount-observe from snapd:mount-observe
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "mount-observe"
plug
......................................................................
Disconnect firefox:host-hunspell from snapd:mount-control
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "host-hunspell"
plug
......................................................................
Disconnect firefox:cups-control from snapd:cups-control
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "cups-control"
plug
......................................................................
Disconnect firefox:etc-firefox from snapd:system-files
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "etc-firefox" plug
......................................................................
Disconnect firefox:joystick from snapd:joystick
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "joystick" plug
......................................................................
Disconnect firefox:browser-sandbox from snapd:browser-support
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "browser-sandbox"
plug
......................................................................
Disconnect firefox:gtk-3-themes from gtk-common-themes:gtk-3-themes
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "gtk-3-themes"
plug
......................................................................
Disconnect firefox:upower-observe from snapd:upower-observe
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "upower-observe"
plug
......................................................................
Disconnect firefox:desktop-legacy from snapd:desktop-legacy
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "desktop-legacy"
plug
......................................................................
Disconnect firefox:u2f-devices from snapd:u2f-devices
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "u2f-devices" plug
......................................................................
Disconnect firefox:gsettings from snapd:gsettings
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "gsettings" plug
......................................................................
Disconnect firefox:sound-themes from gtk-common-themes:sound-themes
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "sound-themes"
plug
......................................................................
Disconnect firefox:x11 from snapd:x11
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "x11" plug
......................................................................
Disconnect firefox:audio-record from snapd:audio-record
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "audio-record"
plug
......................................................................
Disconnect firefox:network from snapd:network
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "network" plug
......................................................................
Disconnect firefox:home from snapd:home
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "home" plug
......................................................................
Disconnect firefox:hardware-observe from snapd:hardware-observe
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "hardware-observe"
plug
......................................................................
Disconnect firefox:screen-inhibit-control from snapd:screen-inhibit-control
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "screen-inhibit-
control" plug
......................................................................
Disconnect firefox:avahi-observe from snapd:avahi-observe
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "avahi-observe"
plug
......................................................................
Disconnect firefox:wayland from snapd:wayland
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "wayland" plug
......................................................................
Disconnect firefox:camera from snapd:camera
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "camera" plug
......................................................................
Disconnect firefox:network-bind from snapd:network-bind
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "network-bind"
plug
......................................................................
Disconnect firefox:gnome-42-2204 from gnome-42-2204:gnome-42-2204
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "gnome-42-2204"
plug
......................................................................
Disconnect firefox:timezone-control from snapd:timezone-control
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "timezone-control"
plug
......................................................................
Disconnect firefox:system-packages-doc from snapd:system-packages-doc
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "system-packages-
doc" plug
......................................................................
Disconnect firefox:unity7 from snapd:unity7
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "unity7" plug
......................................................................
Disconnect firefox:removable-media from snapd:removable-media
2025-12-02T09:56:32-08:00 ERROR snap "firefox" has no "removable-media"
plug
......................................................................
Disconnect firefox:opengl from snapd:opengl
2025-12-02T09:56:34-08:00 ERROR snap "firefox" has no "opengl" plug
......................................................................
Disconnect firefox:desktop from snapd:desktop
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "desktop" plug
......................................................................
Disconnect firefox:host-usr-share-hunspell from snapd:system-files
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "host-usr-share-
hunspell" plug
......................................................................
Disconnect firefox:login-session-observe from snapd:login-session-observe
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "login-session-
observe" plug
......................................................................
Disconnect firefox:audio-playback from snapd:audio-playback
2025-12-02T09:56:33-08:00 ERROR snap "firefox" has no "audio-playback" plug
```
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: snap (not installed)
ProcVersionSignature: Ubuntu 6.8.0-88.89-generic 6.8.12
Uname: Linux 6.8.0-88-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Thu Dec 4 02:19:42 2025
InstallationDate: Installed on 2018-05-19 (2756 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: snap
UpgradeStatus: Upgraded to noble on 2024-10-24 (406 days ago)
** Affects: snap (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
** Attachment added: "task_219.txt"
https://bugs.launchpad.net/bugs/2133866/+attachment/5931377/+files/task_219.txt
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https://bugs.launchpad.net/bugs/2133866
Title:
snap easy to brick by interrupting one single removal
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