This bug has bugged me for a while now. It started in 10.10 and is still there in 11.04.
Fresh install of Natty, 11.04 AMD64. All updates performed. -> Reboot works fine. Install MDADM -> reboot fails mount: mounting /dev/disk/by-uuid/.... on /root failed: Device or resource busy ... ... No init found. Try passing init=bootarg. Remove MDADM (boot on live-CD) -> reboot works fine System has 7 disks. /dev/sda as boot disk. /dev/sd[bcdefg] are used as raid members. Error occurs both when a raid is properly set up, and when all raid members have the superblock zeroed. Error occurs both when mdadm.conf is correct or blank, or missing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/158918 Title: [->UUIDudev] installing mdadm (or outdated mdadm.conf) breaks bootup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/158918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs