The simplest workaround I could come up with for getting grub-installer to succeed with RAID devices on Natty was:
d-i grub-installer/skip boolean true d-i lilo-installer/skip boolean true d-i preseed/late_command string ln -s ../md0 /dev/md/0; grub-installer /target -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743136 Title: grub2 fails to install on md0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/743136/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs