Public bug reported:
OS: Ubuntu Unity 26.04 Beta release candidate
Steps to reproduce:
1. Boot the ISO and let the desktop load.
2. Open the Dash.
3. Search for and launch "Help".
Expected result: Yelp opens.
Actual result: Apport windows appear because Yelp crashed.
Additional info: dmesg indicates that this is occurring because Yelp
uses bwrap under the hood, which can't create an unprivileged user
namespace due to Ubuntu's AppArmor restrictions. Adding a new AppArmor
profile copied from the existing signal-desktop profile, then restarting
apparmor.service, seems to fix the issue (though I do have to modify the
apparmor.service file to allow me to restart it on the live ISO).
** Affects: yelp (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2146369
Title:
Crashes on launch due to AppArmor user namespace restrictions
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