Public bug reported:
DesktopIconsNG uses the gnome-desktop library to generate thumbnails.
Unfortunately, it uses bwrap to launch the thumbnailers, which requires
unprivileged user mamespaces, so it fails in Ubuntu 24.04. Creating
/etc/apparmor.d/bwrap file with the attached patch does solve the
problem.
** Affects: apparmor (Ubuntu)
Importance: Undecided
Status: New
** Tags: bwrap namespaces unprivileged
** Patch added: "apparmor config file to allow bwrap to use unprivileged
namespaces"
https://bugs.launchpad.net/bugs/2079983/+attachment/5814784/+files/bwrap
** Description changed:
DesktopIconsNG uses the gnome-desktop library to generate thumbnails.
Unfortunately, it uses bwrap to launch the thumbnailers, which requires
- unprivileged user mamespaces. Creating /etc/apparmor.d/bwrap file with
- the attached patch does solve the problem.
+ unprivileged user mamespaces, so it fails in Ubuntu 24.04. Creating
+ /etc/apparmor.d/bwrap file with the attached patch does solve the
+ problem.
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https://bugs.launchpad.net/bugs/2079983
Title:
Thumbnails in desktop doesn't work due to apparmor restrictions
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