[Bug 834731] Re: [Dell PowerEdge R810] 'Prunes' fails to mount file system at /dev/sda1

[Brian Murray]

As far as I can tell from the log files it looks like mdadm thought
there was a software raid array on the disks and then discovered that
only one disk was available:

Dec 13 11:45:26 kernel: [   59.316385] md: md127 stopped.
Dec 13 11:45:26 md-devices: mdadm: Container /dev/md/ddf0 has been assembled with 1 drive (out of 2)
Dec 13 11:45:26 kernel: [   59.320712] md: bind<sda>
Dec 13 11:45:27 kernel: [   59.449282] md: md126 stopped.
Dec 13 11:45:27 kernel: [   59.449551] md: bind<sda>
Dec 13 11:45:27 kernel: [   59.451210] md: raid0 personality registered for level 0
Dec 13 11:45:27 md-devices: mdadm: array /dev/md/Virtual now has 1 devices
Dec 13 11:45:27 debconf: --> PROGRESS STEP 1
Dec 13 11:45:27 debconf: <-- 0 OK
Dec 13 11:45:27 debconf: --> PROGRESS INFO partman/progress/init/lvm-devices
Dec 13 11:45:27 debconf: <-- 10 partman/progress/init/lvm-devices does not exist
Dec 13 11:45:27 debconf: --> PROGRESS INFO partman/progress/init/fallback
Dec 13 11:45:27 kernel: [   59.451488] bio: create slab <bio-1> at 1
Dec 13 11:45:27 kernel: [   59.451494] md/raid0:md126: looking at sda
Dec 13 11:45:27 kernel: [   59.451497] md/raid0:md126:   comparing sda(142082048) with sda(142082048)
Dec 13 11:45:27 kernel: [   59.451500] md/raid0:md126:   END
Dec 13 11:45:27 kernel: [   59.451502] md/raid0:md126:   ==> UNIQUE
Dec 13 11:45:27 kernel: [   59.451505] md/raid0:md126: 1 zones
Dec 13 11:45:27 kernel: [   59.451507] md/raid0:md126: FINAL 1 zones
Dec 13 11:45:27 kernel: [   59.451511] md/raid0:md126: too few disks (1 of 2) - aborting!
Dec 13 11:45:27 kernel: [   59.451513] md: pers->run() failed ...

** Changed in: debian-installer (Ubuntu)
       Status: New => Confirmed

** Changed in: debian-installer (Ubuntu)
   Importance: Undecided => Medium

** Changed in: debian-installer (Ubuntu)
     Assignee: (unassigned) => Canonical Foundations Team (canonical-foundations)

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https://bugs.launchpad.net/bugs/834731

Title:
  [Dell PowerEdge R810] 'Prunes' fails to mount file system at /dev/sda1

Status in Hardware Labs:
  New
Status in “debian-installer” package in Ubuntu:
  Confirmed

Bug description:
  While testing the server Prunes with Oneiric Alpha3, during the
  installation there is the following message:

  The attempt to mount a file system with the type ext4 in /dev/sda1 at
  / failed

  You may resume partitioning from the partitioning menu.

  Would you like to continue?

  See the attached screenshot.

  A similar issue was not seen with the Natty server image.

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