I have the same problem with 3.13.0-151-generic on Xubuntu 14.04.0 x86. The computer updated automatically and, after a reboot, the laptop was unbootable.
The GRUB boot menu is displayed with 'Ubuntu' listed first. If I select it or if the countdown reaches zero, the computer screen turns black, restarts, and then the BIOS screen is displayed again after which the GRUB boot menu is back. The second option in the GRUB boot menu, 'Advanced options for Ubuntu', lists kernel -151 and its recovery mode, neither of which work. It always ends in a boot-loop. 3.13.0-149 and its recovery mode were listed below and work without issues. I've taken the drastic measure of disabling all updates and also purged linux-headers-3.13.0-151-generic, linux-generic, linux- image-3.13.0-151-generic, linux-image-extra-3.13.0-151-generic, linux- image-generic, linux-tools-common, linux-tools-generic, etc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1778584 Title: linux-image-3.13.0-151-generic fails to boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778584/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs