This bug affects me too, on a nearly clean Ubuntu 12.04 install. However, I could not find a /conf/conf.d/cryptroot file as specified in the second last post.
I am able to boot into the system. But system-config-lvm shows me that /dev/mapper/... was renamed to /dev/dm-0. The /dev/mapper/ partitions are shown as not initialised. Help would be greatly appreciated. ** Changed in: cryptsetup (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/824961 Title: Ubuntu 11.04 Server with encrypted LVM on dm RAID0 -- Incorrect metadata area header checksum - No volume groups found - ALERT! /dev/mapper/MachineName-root does not exist To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/824961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs