Public bug reported: I just made a fresh install from ubuntu-16.04.2-server-amd64.iso, updated all packages, and tested to boot without one disk. It failed.
See the attached screenshot for error messages. This is probably the same bug as https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=859691 Workaround: mdadm --run /dev/md0 [CTRL+D] (to exit initramfs shell) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: mdadm 3.3-2ubuntu7.2 ProcVersionSignature: Ubuntu 4.4.0-72.93-generic 4.4.49 Uname: Linux 4.4.0-72-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Thu Apr 6 15:18:22 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-04-06 (0 days ago) InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.8) Lsusb: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MDadmExamine.dev.sda: Error: command ['/sbin/mdadm', '-E', '/dev/sda'] failed with exit code 1: mdadm: cannot open /dev/sda: Permission denied MDadmExamine.dev.sda1: Error: command ['/sbin/mdadm', '-E', '/dev/sda1'] failed with exit code 1: mdadm: cannot open /dev/sda1: Permission denied MDadmExamine.dev.sdb: Error: command ['/sbin/mdadm', '-E', '/dev/sdb'] failed with exit code 1: mdadm: cannot open /dev/sdb: Permission denied MDadmExamine.dev.sdb1: Error: command ['/sbin/mdadm', '-E', '/dev/sdb1'] failed with exit code 1: mdadm: cannot open /dev/sdb1: Permission denied MachineType: innotek GmbH VirtualBox ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-72-generic root=/dev/mapper/hostname--vg-root ro ProcMDstat: Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sdb1[2] sda1[0] 8382464 blocks super 1.2 [2/2] [UU] unused devices: <none> SourcePackage: mdadm UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH etc.blkid.tab: Error: [Errno 2] No such file or directory: '/etc/blkid.tab' ** Affects: mdadm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial ** Attachment added: "errors" https://bugs.launchpad.net/bugs/1680448/+attachment/4856175/+files/Screenshot%20from%202017-04-06%2015-15-21.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1680448 Title: Can't boot with degraded RAID 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1680448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
