[Grml] grml-debootstrap VM creation broken due to bug in kpartx?

Michael Prokop mika at grml.org
Tue Feb 11 11:27:12 CET 2014


* adrelanos [Sun Jan 12, 2014 at 01:01:28PM +0000]:
> adrelanos:
> > My grml-debootstrap configuration is here:
> > https://github.com/adrelanos/minimal-grml-debootstrap-test

> > (I think it's quite useful to have a single script/configuration around
> > for producing minimal instructions on how to produce that bug.)

> > grml-debootstrap keeps failing for me.
> > umount: /mnt/debootstrap.23035: device is busy

> > I guess it could be because this bug in kpartx:
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=734794

> umount: /mnt/debootstrap.23035: device is busy

> I just double checked this. It also happens in a freshly installed
> Debian Jessie VM.

> Could you check please, if you can confirm, that grml-debootstrap is
> currently broken after applying all updates in Debian Jessie?

> Apart from the kpartx bug, I am quite sure another bug related causing
> "device is busy" has been introduced in in linux 3.12-2-686-pae. The
> older 3.11-2-686-pae kernel seems unaffected.

> reliably mount/unmount with 3.11-2-686-pae, but not with 3.12-2-686-pae.
> I couldn't make myself a bug report without "you need to download
> that/an image".

I just tried to reproduce this issue, it seems to work for me on
Debian/wheezy as well as on Debian/jessie (as of today with
linux-image-3.12-1-amd64 v3.12.9-1 and kpartx
0.4.9+git0.9c3c5172-1). [I just didn't use your custom config and
package list and used amd64 instead, but I used the command line
from your script, ftr.]

Maybe check whether the updates included in the current linux kernel
package 3.12.9-1 fixes the issue for you?

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