** Description changed:

  Occasionally users will receive and OTA update that requires apparmor
  policy to be recompiled. Recompiling apparmor policy can take quite a
  bit of time (minutes) depending on how many applications the user has
  installed. While this is only expected to happen on major OTA OS
  upgrades (eg, 14.10 to 15.04), it is possible it could happen at other
  times. This would improve the user experience for developers
  considerably since policy recompiles can be relatively frequent when
  running the development release.
  
+ <https://lists.launchpad.net/ubuntu-phone/msg13291.html>: "On start
+ apparmor profiles need to be regenerated which means the first boot
+ after the upgrade might take long depending on the number of installed
+ applications (even up to 30 minutes). Currently there will be no visual
+ indication of the profile regeneration, so please be patient and wait
+ until you see the UI appearing."
+ 
  To improve the user experience, we should detect and recompile apparmor
  profiles prior to reboot but after system-image updates has downloaded
  the new update. This always for the possibility of using a progress
  meter when compiling policy (which we currently cannot). Needs design
  input for when to do it and how the progress meter should look.
+ 
+ See also bug 1350598, about caching compiled policies more often.

** Changed in: ubuntu-ux
   Importance: Medium => High

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https://bugs.launchpad.net/bugs/1385410

Title:
  hook into system-image updates to precompile policy prior to reboot

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