Public bug reported: Attempting the RAID install test with Precise server AMD64.
Hardware config is a 1U server with 2 SATA drives wth the following partitions: sda: 500GB SATA sda1: 50GB RAID sda2: 20GB RAID sda3: 180GB RAID sdb: 250GB SATA sdb1: 50GB RAID sdb2: 20GB RAID sdb3: 180GB RAID Using the instructions found here: http://testcases.qa.ubuntu.com/Install/ServerRAID1 I created the three partitions for each physical disk. I then created three RAID deviecs, md0 - md2 as follows: md0: 50GB RAID1 using sda1 and sdb1 for / md1: 20GB RAID1 using sda2 and sdb2 for swap md2: 180GB RAID1 using sda3 and sdb3 for /home I then completed the install and reboot. On the initial boot, I verified that all three RAID devices were present and active: bladernr@ubuntu:~$ cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sda1[0] sdb1[1] 48826296 blocks super 1.2 [2/2] [UU] md2: active raid1 sda3[0] sdb3[1] 175838136 blocks super 1.2 [2/2] [UU] md1: active raid1 sda2[0] sdb2[1] 19529656 blocks super 1.2 [2/2] [UU] I then powered the machine down per the test case instructions, removed disk 2 (sdb) and powered back up. On reboot, I verified that the array was active and degraded and powered the system back down, again per the test instructions. I re-inserted drive2 (sdb) and powered the system up again. After logging in, I rechecked /dev/mdstat, expecting to see both drives for each md device and a resync in progress. Instead, I found that the second drive was missing from md0 and md2 while md1 (the swap LUN) was fine. bladernr@ubuntu:~$ cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sda1[0] 48826296 blocks super 1.2 [2/1] [U_] md2: active raid1 sda3[0] 175838136 blocks super 1.2 [2/1][U_] md1: active raid1 sda2[0] sdb2[1] 19529656 blocks super 1.2 [2/2] [UU] The instructions indicated that I may have to re-add the drives that are missing manually, so I attemted this: bladernr@ubuntu:~$ sudo mdadm --add /dev/md0 /dev/sdb1 mdadm: /dev/sdb1 reports being an active member for /dev/md0, but a --re-add fails. mdadm: not performing --add as that would convert /dev/sdb1 in to a spare. mdadm: To make this a spare, use "mdadm --zero-superblock /dev/sdb1" first. I also tried using --re-add: bladernr@ubuntu~$ sudo mdadm --re-add /dev/md0 /dev/sdb1 mdadm: --re-add for /dev/sdb1 to /dev/md0 is not possible So here's some info from mdadm: /dev/md0: Version : 1.2 Creation Time : Wed Feb 1 20:53:34 Raid Level : raid1 Array Size : 48826296 (46.56 GiB 50.00GB) Used Dev Size : 48826296 (46.56 GiB 50.00GB) Raid Devices : 2 Total Devices : 1 Persistence : Superblock is persistent Update Time : Wed Feb 1 23:54:04 2012 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 0 Spare Devices : 0 Name : ubuntu:0 (local to host ubuntu) UUID : 118d60db:4ddc5cf2:040c4cb2:bd896eaf Events : 118 Number Major Minor RaidDevices State 0 8 1 0 active sync /dev/sda1 1 0 0 1 removed So according to the test instructions, this test is a failure because I can't rebuild the array (nor is it automatically rebuilt). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-12-generic 3.2.0-12.21 ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2 Uname: Linux 3.2.0-12-generic x86_64 AlsaDevices: total 0 crw-rw---T 1 root audio 116, 1 Feb 1 23:35 seq crw-rw---T 1 root audio 116, 33 Feb 1 23:35 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 1.91-0ubuntu1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory Date: Wed Feb 1 23:38:28 2012 HibernationDevice: RESUME=UUID=e573077c-98b5-42e5-9f37-b8efaa2ba74a InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1) IwConfig: lo no wireless extensions. eth1 no wireless extensions. eth0 no wireless extensions. MachineType: Supermicro X7DVL PciMultimedia: ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic root=UUID=a84486b9-e72d-4134-82a8-263f91d7d894 ro RelatedPackageVersions: linux-restricted-modules-3.2.0-12-generic N/A linux-backports-modules-3.2.0-12-generic N/A linux-firmware 1.68 RfKill: Error: [Errno 2] No such file or directory SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/23/2008 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 2.1 dmi.board.name: X7DVL dmi.board.vendor: Supermicro dmi.board.version: PCB Version dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr2.1:bd06/23/2008:svnSupermicro:pnX7DVL:pvr0123456789:rvnSupermicro:rnX7DVL:rvrPCBVersion:cvnSupermicro:ct1:cvr0123456789: dmi.product.name: X7DVL dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug iso-testing precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925280 Title: Software RAID fails to rebuild after testing degraded cold boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925280/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
