Note, the upgrade process freeze if you have to decide to keep or replace a global config file.
e.g.: Package distributor has shipped an updated version. What would you like to do about it ? Your options are: Y or I : install the package maintainer's version N or O : keep your currently-installed version D : show the differences between the versions Z : start a shell to examine the situation The default action is to keep your current version. *** <file of interest> (Y/I/N/O/D/Z) [default=N] ? I think this bug is related to bug 1448380 (https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1448380) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1448774 Title: vivid upgrade hangs, if system files have been changed before To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1448774/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs