Comment 5 for bug 1318568

@psusi - once you've installed on fake RAID and upgraded successfully a few time, the effort to convert to Linux software RAID is significant. I've side-stepped that for now by rebuilding grub 1.99-21ubuntu3.15 (from 12.04) on Ubuntu 14.04 and putting package holds on the resulting debs. Maybe someday I'll run off lists of installed packages and decide which ones to re-install, figure out what parts of backups need to be restored other than the obvious ones like /home, reinstall from scratch, put all the packages and customizations back and not worry about fake RAID anymore but for now I'll just putter along.

This isn't the first time grub2 lost the ability to be installed on fake RAID. On Maverick it was necessary to back-port the grub from Natty to get working grub-on-fake RAID.