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[Bug 1592917] Re: do-release-upgrade stuck when dealing with apparmor profile for cupsd

 

After trying to stop or teardown apparmor, I still get

aa-status
apparmor module is loaded.
3 profiles are loaded.
3 profiles are in enforce mode.
   /usr/lib/cups/backend/cups-pdf
   /usr/sbin/cupsd
   /usr/sbin/cupsd//third_party
0 profiles are in complain mode.
0 processes have profiles defined.
0 processes are in enforce mode.
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.

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https://bugs.launchpad.net/bugs/1592917

Title:
  do-release-upgrade stuck when dealing with apparmor profile for cupsd

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On an up-to-date 14.04.x, I started do-release-upgrade -d to upgrade
  to ubuntu 16.04.

  At about 50% of the installation of packages, do-release-upgrade
  stucks in the following manner:

  - cpu runs at 0%~ and there is no disk I/O for about 15 minutes now
  - do-release-upgrade does not terminate, and there is no visible progress at all.

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References