Comment 9 for bug 591909

I've got the same problem using the standard netinstall image via pxe, I've manually created a md0 for /boot and md1 for /.

After the first reboot, /boot wasn't mounted by ubuntu, and md1 got assembled with /dev/sda and /dev/sdb instead of /dev/sda2 and /dev/sdb2.

This should be an high blocking bug, because raid+lvm is a standard on server equipment.