Actually, 00001f0: 0000 0000 0000 0000 0000 0000 0000 55aa ..............U.
It's the MBR signature (the 55aa above) that causes problem. If I replace it with "0000", blkid sees it as a LVM member again but the system doesn't boot as its not recognised as a boot sector. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/900393 Title: Won't boot if grub on partition holding the LVM root fs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/900393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
