[Bug 442735] Re: dmraid eats mdadm-managed raid in upgrading from 9.04 to 9.10

[Bug Watch Updater]

** Changed in: dmraid (Debian)
       Status: Unknown => Fix Released

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Title:
  dmraid eats mdadm-managed raid in upgrading from 9.04 to 9.10

Status in dmraid:
  Invalid
Status in “dmraid” package in Ubuntu:
  Invalid
Status in “mdadm” package in Ubuntu:
  Invalid
Status in “dmraid” package in Debian:
  Fix Released

Bug description:
  Binary package hint: mdadm

  After rebooting into my newly upgraded 9.10  beta  and rebooting a
  second time my raid was lost. Apperantly dmraid is loaded before
  mdadm-managed raid, thereby locking /dev/sda1  and others from the
  raid signature and thereby preventing mdadm from assembling the raid.

  This leads to massive data loss as dmraid also will erase the
  superblock/partition table on the devices.

  In my case the solution is to forcibly remove dmraid and reboot.

  After that you have to manually kill mountall in a single setup
  because mountaill will fail and go into a spin where it constantly and
  incessantly respawns fsck.ext3 (which fails and tells you to restart
  it without -p or -y )

  On top of this the terminal is garbled forcing you to swap to another
  one. ( seems like a curses based prompt for interaction is overwritten
  turning the whole thing into garbage)

  
  once mountall is killed and all fsck-jobs pruned, you can re-create the partition tables on the lost disk, and set the type to Linux Raid Autodetect.

  Then you can once again do mdadm --assemble /dev/md0 /dev/sd[a-c]1
  and wait for 24+ hours.

  Then you can fsck and hope that Ubuntu won't eat your raid again.

  
  This is -clearly- suboptimal, caused me a lot of grief and panic.

  On top of that the ubuntu-bug tool for mdadm doesn't stop to ask you
  for a password but happily tries to run mdadm -E on devices without
  permission to read them, generating what appears to be a bogus report.

  ProblemType: Bug
  Architecture: amd64
  Date: Mon Oct  5 03:53:24 2009
  DistroRelease: Ubuntu 9.10
  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
  MDadmExamine.dev.sdc: Error: command ['/sbin/mdadm', '-E', '/dev/sdc'] failed with exit code 1: mdadm: cannot open /dev/sdc: Permission denied
  MDadmExamine.dev.sdc1: Error: command ['/sbin/mdadm', '-E', '/dev/sdc1'] failed with exit code 1: mdadm: cannot open /dev/sdc1: Permission denied
  MDadmExamine.dev.sdd: Error: command ['/sbin/mdadm', '-E', '/dev/sdd'] failed with exit code 1: mdadm: cannot open /dev/sdd: Permission denied
  MDadmExamine.dev.sdd1: Error: command ['/sbin/mdadm', '-E', '/dev/sdd1'] failed with exit code 1: mdadm: cannot open /dev/sdd1: Permission denied
  MDadmExamine.dev.sdd2: Error: command ['/sbin/mdadm', '-E', '/dev/sdd2'] failed with exit code 1: mdadm: cannot open /dev/sdd2: Permission denied
  MDadmExamine.dev.sdd3: Error: command ['/sbin/mdadm', '-E', '/dev/sdd3'] failed with exit code 1: mdadm: cannot open /dev/sdd3: Permission denied
  MDadmExamine.dev.sdd4: Error: command ['/sbin/mdadm', '-E', '/dev/sdd4'] failed with exit code 1: mdadm: cannot open /dev/sdd4: Permission denied
  MDadmExamine.dev.sdd5: Error: command ['/sbin/mdadm', '-E', '/dev/sdd5'] failed with exit code 1: mdadm: cannot open /dev/sdd5: Permission denied
  MDadmExamine.dev.sdd6: Error: command ['/sbin/mdadm', '-E', '/dev/sdd6'] failed with exit code 1: mdadm: cannot open /dev/sdd6: Permission denied
  MachineType: Gigabyte Technology Co., Ltd. P35-DS4
  NonfreeKernelModules: nvidia
  Package: mdadm 2.6.7.1-1ubuntu13
  ProcCmdLine: root=UUID=79dc13f4-cbae-42ee-bb76-a110e8a381d7 ro quiet splash
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/zsh
  ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
  SourcePackage: mdadm
  Uname: Linux 2.6.31-11-generic x86_64
  dmi.bios.date: 07/21/2008
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F13
  dmi.board.name: P35-DS4
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF13:bd07/21/2008:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS4:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS4:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: P35-DS4
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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