If it helps: $ sudo fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xe6d4e6d4 Device Boot Start End Blocks Id System /dev/sda1 63 976768064 488384001 fd Linux raid autodetect Disk /dev/sdb: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xe6d4e6d4 Device Boot Start End Blocks Id System /dev/sdb1 * 63 976768064 488384001 fd Linux raid autodetect Disk /dev/md0: 500.1 GB, 500105150464 bytes 2 heads, 4 sectors/track, 122095984 cylinders, total 976767872 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table $ sudo update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.5.0-14-generic Found initrd image: /boot/initrd.img-3.5.0-14-generic Found memtest86+ image: /boot/memtest86+.bin No volume groups found Found Ubuntu quantal (development branch) (12.10) on /dev/sda1 Found Ubuntu quantal (development branch) (12.10) on /dev/sdb1 done $ sudo grub-install --force --no-floppy /dev/sda /usr/sbin/grub-bios-setup: warning: your embedding area is unusually small. core.img won't fit in it.. /usr/sbin/grub-bios-setup: error: embedding is not possible, but this is required for RAID and LVM install. Interestingly, update-grub seems to write a semi-incorrect file: The chunk derived from: /etc/grub.d/30_os-prober references a few kernels that no longer exist, e.g. menuentry 'Ubuntu, with Linux 3.5.0-13-generic menuentry 'Ubuntu, with Linux 3.5.0-9-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/1051154 Title: [quantal] warning: your embedding area is unusually small. core.img won't fit in it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1051154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
