Ubuntu
os-prober package

software raid component drives erroneously detected

Bug #905607 reported by John Ryan
32
This bug affects 4 people
Affects Status Importance Assigned to Milestone
os-prober (Ubuntu)
Fix Released
Medium
Colin Watson

Bug Description

Recent versions of os-prober have been erroneously reporting the component drives of a software (mdadm) array which results in grub2 adding boot entries for these drives. For example, my / filesystem is mounted on /dev/md0 and /proc/mdstat contains:

md0 : active raid1 sdb1[1] sda1[0]
      24000960 blocks [2/2] [UU]

Running os-prober reports:

/dev/sda1:Ubuntu 11.10 (11.10):Ubuntu:linux
/dev/sdb1:Ubuntu 11.10 (11.10):Ubuntu2:linux

The problem is a missing backslash on line 84 of /usr/bin/os-prober which reads:

"dev="${word%%[*}"

and should instead read:

dev="${word%%\[*}"

I have confirmed that this bug is present in Ubuntu Oneiric and Precise.

John

Tags: patch

Related branches

lp:debian/os-prober
Revision history for this message
John Ryan (johnryannz) wrote :
tags: added: patch
Revision history for this message
Ubuntu Foundations Team Bug Bot (crichton) wrote :

The attachment "os-prober-mdadm.patch" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in os-prober (Ubuntu):
status: New → Confirmed
Revision history for this message
Matthias Andree (matthias-andree) wrote :

I am having the same problem, and the patch solves the problem for me on precise. Please upgrade the os-prober package.

Revision history for this message
Phillip Susi (psusi) wrote :

Just found this myself then thought to search for an existing bug report..

Changed in os-prober (Ubuntu):
importance: Undecided → Medium
status: Confirmed → Triaged
Revision history for this message
Colin Watson (cjwatson) wrote :

Thanks! Committed upstream.

Changed in os-prober (Ubuntu):
assignee: nobody → Colin Watson (cjwatson)
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package os-prober - 1.61ubuntu1

---------------
os-prober (1.61ubuntu1) saucy; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Mount btrfs subvolume @ when present to access a btrfs formatted
      rootfs.
    - When called with WINOSDATA, return the list of Windows partitions
      containing the system instead of only listing these containing the
      bootrecord.

os-prober (1.61) unstable; urgency=low

  * Add an extra backslash to the code in parse_proc_mdstat to remove [...],
    so that it works properly in dash (thanks, John Ryan; LP: #905607).

os-prober (1.60) unstable; urgency=low

  * os-probes/mounted/x86/05efi: Handle the case where we used grub-mount to
    mount the EFI System Partition.
 -- Colin Watson <email address hidden> Tue, 21 May 2013 23:03:55 +0100

Changed in os-prober (Ubuntu):
status: Triaged → Fix Released
Revision history for this message
malheum (maxheise) wrote :

Linux Mint Debian Up6 is also affected by this bug. However I could not mark LMDE as being affected, so I filed a new bug against Linux Mint.

The new bug report against LMDE is here
https://bugs.launchpad.net/linuxmint/+bug/1196896

For me the suggested solution to change "dev="${word%%[*}" to dev="${word%%\[*}" also worked in Linux Mint LMDE UP6.

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