This also happens using the text installer on the DVD. That was with the software raid on the disk. Fails at the same point, installing the GRUB (or LILO for that matter) to hd0.
-- Dapper Installer crashes at grub installation https://launchpad.net/bugs/60812 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs