This bug is related to bug 316872, specifically note: https://bugs.launchpad.net/ubuntu/+source/grub/+bug/316872/comments/16
A new upgraded version of grub does not automatically install the new grub stage 2 that contains the ext4 support. Apparently grub-install is not generally something that's safe to run automatically on upgrades. I believe the upgrade from ext3 to ext4 and the re-running of grub-install will be put into the Jaunty release notes. -- ext4: Unable to boot linux-image-2.6.28-7 or newer https://bugs.launchpad.net/bugs/331558 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs