apparmor chromium-browser abstraction missing in Ubuntu 12.04 upgrade

[agent 8131]

I've had this happen on 2 or 3 systems upgraded to Ubuntu 12.04. The file:

/etc/apparmor.d/abstractions/ubuntu-browsers.d/chromium-browser

will be missing leading to problems with apparmor like this:

# aa-logprof
Reading log entries from /var/log/syslog.
Updating AppArmor profiles in /etc/apparmor.d.

Can't find include file abstractions/ubuntu-browsers.d/chromium-browser: No such file or directory

#

I found this could be fixed by running:

# apt-get install --reinstall apparmor-profiles

[Jamie Strandboge (jdstrand)]

Thank you for using Ubuntu and reporting a bug. AFAICS, this can only happen when the apparmor-profiles package is purged, but it should be added back when the package is reinstalled. I am trying to reproduce now with an upgrade from 11.10.

[Jamie Strandboge (jdstrand)]

I was not able to reproduce this. apparmor-profiles was not removed on upgrade from 11.10 to 12.04 and /etc/apparmor.d/abstractions/ubuntu-browsers.d/chromium-browser exists after upgrade.

Can you attach your /var/log/dist-upgrade/term.log file?

[agent 8131 (agent-8131)]

> this can only happen when the apparmor-profiles package is purged

I am confident that the package was not purged during the upgrade process. On the server text box I upgraded there is no /var/log/dist-upgrade/term.log file. This box was upgraded from 10.04 to 12.04. I will check the other box (which was 11.10 to 12.04) when I am able. This does not happen on every upgrade, but it has happened 2 out of 3 times for me. I don't know if it has anything to do with the mode of the profiles or something else that may have been changed about AppArmor. If it had only happened once I would have written it off, but twice I figured I would post what happened with the solution so that other people can get passed this.

[Launchpad Janitor (janitor)]

[Expired for apparmor (Ubuntu) because there has been no activity for 60 days.]