There have been some reports of corrupted /EFI/ubuntu directories, so could you confirm that you can see the files in this directory -- either from a legacy boot (where you will have to mount the EFI partition somewhere), or live boot? If the directory is unreadable, uefi boots cannot find the necessary files to continue booting. (bug 1090829)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1129524 Title: Precise & Quantal won't boot in UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1129524/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs