Comment 40 for bug 158918

This is still a problem in 12.04.1 Server AMD64.
OS is installed on a single drive and the machine also contains 6 drives that I want to configure as RAID0. Installed and configured OS fine, installed mdadm and now can't boot.
The 6 drives destined for the array are brand new so have never been part of a RAID array. The OS drive was previously part of a RAID array, but obviously was formatted during installation.