Public bug reported:
After a recent update of AppArmor (version
4.0.1really4.0.1-0ubuntu0.24.04.6), the AppArmor profile for Nautilus
(/etc/apparmor.d/nautilus) was removed. This results in thumbnails no
longer being displayed in Nautilus.
**Steps to reproduce:**
1. Update AppArmor to version 4.0.1really4.0.1-0ubuntu0.24.04.6.
2. Notice that the file /etc/apparmor.d/nautilus is missing.
3. Open Nautilus: thumbnails are no longer displayed.
**Temporary workaround:**
Manually restore the /etc/apparmor.d/nautilus profile with the following
content:
---
# This profile allows everything and only exists to give the
# application a name instead of having the label "unconfined"
abi <abi/4.0>,
include <tunables/global>
profile nautilus /usr/bin/nautilus flags=(unconfined) {
userns,
# Site-specific additions and overrides. See local/README for details.
include if exists <local/nautilus>
}
---
Then reload the profile with:
sudo apparmor_parser -r /etc/apparmor.d/nautilus
This restores thumbnail display.
**Relevant logs:**
- Before the update: the "nautilus" profile was present in the AppArmor profile
list (see aa-status).
- After the update: the profile is missing, and thumbnails no longer appear.
**Impact:**
This bug prevents users from seeing file previews in Nautilus, making folder
navigation less efficient.
**Ubuntu version:**
Ubuntu 24.04 LTS
**AppArmor version:**
4.0.1really4.0.1-0ubuntu0.24.04.6
** Affects: apparmor (Ubuntu)
Importance: Undecided
Status: New
** Tags: apparmor nautilus regression thumbnails
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https://bugs.launchpad.net/bugs/2148074
Title:
"AppArmor update removes /etc/apparmor.d/nautilus profile, breaking
thumbnails in Nautilus (Ubuntu 24.04)"
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