This bug might be related, a grub issue with fakeraid, which utilizes device-mapper.
https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/603854
This bug might be related, a grub issue with fakeraid, which utilizes device-mapper.
https:/ /bugs.launchpad .net/ubuntu/ +source/ grub-installer/ +bug/603854