Comment 11 for bug 972960

Dave,

I can no longer reproduce the setup for this bug.
It was narrowed down to md trying to "wrap" the "fake-ide" controllers
(thanks #ubuntu and #ubuntu+1). I was able to install when I disabled RAID
function on the motherboard.
What was noticeable is that you can enable the RAID function after the
installation (unless you are trying to install onto a software RAID root
partition which was my case). So only the installer is affected.

Thank you,

AT.

On Wed, Aug 1, 2012 at 6:54 PM, Christopher M. Penalver <
<email address hidden>> wrote:

> Atarutin, this bug was reported a while ago and there hasn't been any
> activity in it recently. We were wondering if this is still an issue? If
> so, could you please test for this with the latest development release
> of Ubuntu? ISO CD images are available from
> http://cdimage.ubuntu.com/releases/ .
>
> If it remains an issue, could you please run the following command in
> Oneiric from a Terminal (Applications->Accessories->Terminal), as it
> will automatically gather and attach updated debug information to this
> report:
>
> apport-collect -p linux <replace-with-bug-number>
>
> Please let us know your results. Thank you for your understanding.
>
> Helpful Bug Reporting Links:
> https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette
>
> https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
>
> https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
>
> https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug
>
> ** Tags removed: kernel-request-3.2.0-22.35
>
> ** Tags added: regression-release
>
> ** Summary changed:
>
> - md fails during install [kernel BUG at
> /build/buildd/linux-3.2.0/drivers/md/md.c:6920!]
> + md fails during install [kernel BUG at
> /build/buildd/linux-3.2.0/drivers/md/md.c:6920!]; RIP:
> 0010:[<ffffffff814e7eec>] [<ffffffff814e7eec>] md_write_start+0x1c/0x20
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/972960
>
> Title:
> md fails during install [kernel BUG at
> /build/buildd/linux-3.2.0/drivers/md/md.c:6920!]; RIP:
> 0010:[<ffffffff814e7eec>] [<ffffffff814e7eec>]
> md_write_start+0x1c/0x20
>
> Status in “linux” package in Ubuntu:
> Incomplete
>
> Bug description:
> Whenever I try to install ubuntu-12.04, no LVs show up in the
> installer seemingly from the errors in md. See the attached dmesg.
>
> Interstingly, if I upgrade from 11.10 it all works just fine.
>
> Thank you,
>
> AT.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/972960/+subscriptions
>

--
AT.