this occured to me after a fresh install of jaunty ( released version) with ext4 and then changing sources .lst to karmic and updating, all went well until I installed the 2.6.30-1 kernel , with that kernel I would get grub error 13 , with 2.6.28-11 the boot was ok , reinstalling grub from within karmic allowed me to boot the 30-x kernels , there are several reports of this in the karmic dev forum and reinstalling grub does not seem to work for everyone .
-- Grub error 13: Invalid or unsupported executable format https://bugs.launchpad.net/bugs/365331 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
