Re: bootloader install failed (10.04)
Which is your boot drive? The grub install will fail if you try to install the boot loader to any drive that is a raid component. The failure is not actually fatal and can be fixed by reinstalling grub.
If the raid is your boot drive using the two step method as follows should work:
I am guessing at the name '/dev/mapper/isw_eagajidbdb_0' but you can look in the directory /dev/mapper to verify the actual name. It should be the first one listed after control and represents the link for the raid overall. The other three names represent the partitions on the raid.
sudo mount /dev/mapper/isw_eagajidbdb_05 /mnt
sudo grub-install --root-directory=/mnt/ /dev/mapper/isw_eagajidbdb_0
12.10 Quantal w/grub2/Mint13 installed on raid0, Gigabyte AMD MB, AMD 64x4 CPUs at 3.2GHz, 16 GB ram, HD7770 ATI video, dual boot win7 on 64gb ssd and win8 on 1Tb SATA raid. 13.04 installed on raid0 and ssd