Partitions fail to activate on RAID volumes with complex names

[Phazonmutant]

Binary package hint: dmraid

I have a motherboard RAID 0 array (FakeRAID) whose volume name is isw_cfebfidbf_Mother Brain 2. After looking at the dmraid output, it was determined that the partitions fail to activate, probably because the volume name includes spaces. dmraid -Rd output is attached.
Further details are on the Ubuntu forums here: http://ubuntuforums.org/showthread.php?t=981568

[Phillip Susi (psusi)]

It looks like dmraid needs fixed to backslash escape the spaces in the name before passing it down.

[Phillip Susi (psusi)]

Adding the kernel to the bug since it appears that even when the spaces are backslash escaped, the kernel does not handle it properly. It appears that dm_split_args() properly parses the argv when the spaces are backslash escaped, but linear_ctr() still fails with "Device lookup failed".

[Phillip Susi (psusi)]

Nevrmind, I must have made a typeo because now the kernel accepts names with spaces if they are backslash escaped.

[Phazonmutant (phazonmutant)]

I tried backslash-escaped spaces, as instructed to in the ubuntuforums thread.
Unless...by backslash-escaped spaces do you mean "\ " instead of "\"?

[Phillip Susi (psusi)]

Yes, backslash escaped means prefixing the space with a backslash, so "\ ". You should be able to manually create the partition device with dmsetup but dmraid needs fixed to insert the backslashes before sending the path down to the kernel.

[Phillip Susi (psusi)]

Can you test 10.04 or 10.10 and see if this is still an issue?

[Phazonmutant (phazonmutant)]

I've updated my desktop storage twice since I posted that and no longer have
a RAID setup, sorry.

-Greg

On Oct 27, 2010 11:41 PM, "Phillip Susi" <email address hidden> wrote:
> Can you test 10.04 or 10.10 and see if this is still an issue?
>
>
> ** Tags removed: dmraid partition raid
>
> ** Changed in: dmraid (Ubuntu)
> Status: Triaged => Incomplete
>
> --
> Partitions fail to activate on RAID volumes with complex names
> https://bugs.launchpad.net/bugs/299311
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “dmraid” package in Ubuntu: Incomplete
> Status in “linux” package in Ubuntu: Invalid
>
> Bug description:
> Binary package hint: dmraid
>
> I have a motherboard RAID 0 array (FakeRAID) whose volume name is
isw_cfebfidbf_Mother Brain 2. After looking at the dmraid output, it was
determined that the partitions fail to activate, probably because the volume
name includes spaces. dmraid -Rd output is attached.
> Further details are on the Ubuntu forums here:
http://ubuntuforums.org/showthread.php?t=981568
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/dmraid/+bug/299311/+subscribe

[Launchpad Janitor (janitor)]

[Expired for dmraid (Ubuntu) because there has been no activity for 60 days.]

[Chris Roemmich (croemmich)]

I spend about 6 hours trying to get my RAID working, finally I came across this bug and it looks very similar to what I was experiencing. I used Intel Storage Manager in Windows to remove the spaces from my volume's names. After doing so, everything worked perfectly... this is definitely still an active bug. (ubuntu 11.10, ICH7)