I have the same problem, but have managed to complete the upgrade from 12.04 to 14.04 using:
sudo echo ``mdadm hold'' | dpkg --set-selections followed by: sudo dpkg --configure -a -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1285312 Title: Setting up mdadm (3.2.5-5ubuntu3) freezes at Found kernel: when upgrading from Saucy to Trusty To manage notifications about this bug go to: https://bugs.launchpad.net/grub/+bug/1285312/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
