BTW, once I moved back from xserver-xorg-lts-utopic to xserver-xorg and then also executed 'aptitude purge ~c'. It also broke the system and I should reinstall xserver-xorg to fix it.
** Also affects: xorg (Ubuntu) Importance: Undecided Status: New ** Also affects: ubuntu (Ubuntu) Importance: Undecided Status: New ** No longer affects: ubuntu (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1438264 Title: 'aptitude purge ~c' breaks 14.04.2 LTS upgrade Status in xorg package in Ubuntu: Confirmed Status in xorg-lts-utopic package in Ubuntu: Confirmed Bug description: During 14.04.1 LTS --> 14.04.2 LTS upgrading I found a strange bug. How to reproduce: 1) sudo apt-get install linux-generic-lts-utopic xserver-xorg-lts- utopic libegl1-mesa-drivers-lts-utopic xserver-xorg-video-all-lts- utopic xserver-xorg-input-all-lts-utopic 2) sudo aptitude purge linux-headers-3.13.0-48 linux- headers-3.13.0-48-generic linux-image-3.13.0-48-generic linux-image- extra-3.13.0-48-generic 3) sudo aptitude purge ~c 4) reboot What happens: system unable to boot graphics session and boots to VM instead. Founded workaround: sudo aptitude reinstall xserver-xorg-lts-utopic So, It seems aptitude purge ~c for some reason breaks xserver package that should be reinstalled then to make system fully botable. Also I found it is reproduced on many computers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1438264/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp