I've followed these two steps of James's solution $ sudo rm /usr/sbin/update-initramfs $ sudo dpkg-divert --rename --remove /usr/sbin/update-initramfs
and can confirm that my problem machine also boots correctly with the 3.2.0-23 kernel reinstated by reinstalling linux-generic, linux-headers- generic and linux-image-generic. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/974765 Title: Drive not found since 3.2.0-21... kernel panic, unable to mount root fs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/974765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs