I'm having similar problems. I don't have a raid setup, though I turned one of my partitions into an LVM2 group. The root filesystem is on its own partition, but /usr is on the LVM partition. I guess if the boot script was trying to access a binary from /usr/bin or /usr/sbin, that would explain the errors.
I've attached my /etc/fstab. ** Attachment added: "/etc/fstab" http://librarian.launchpad.net/5610464/fstab -- Feisty: unbootable after dist-upgrade https://launchpad.net/bugs/77233 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
