Wrong bootarg for disk with label

hmm, i cant see any issues in the logs, flash-kernel-installer is supposed to use:

blkid -o value $(mount | grep "on /${1%/} " | tail -n1 | cut -d' ' -f1) | head -1

for setting root= at the very end of the install, this should actually return the proper UUID instead of a label.

I'm really no expert in command line in linux, but this command above
gives me the label of the drive.

If i skip the 'head -1',

this is what i get :

thibault@panda12-10:~$ sudo blkid -o value $(mount | grep "on /${1%/}
" | tail -n1 | cut -d' ' -f1)
ubuntu2
9888f422-c54a-418e-884f-8e9b26aacd2a
ext2

On Fri, Nov 16, 2012 at 1:35 PM, Oliver Grawert <email address hidden> wrote:
> hmm, i cant see any issues in the logs, flash-kernel-installer is
> supposed to use:
>
> blkid -o value $(mount | grep "on /${1%/} " | tail -n1 | cut -d' ' -f1)
> | head -1
>
> for setting root= at the very end of the install, this should actually
> return the proper UUID instead of a label.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1079185
>
> Title:
> Wrong bootarg for disk with label
>
> Status in “flash-kernel” package in Ubuntu:
> New
>
> Bug description:
> I just installed Ubuntu 12.10 on a pandaboard.
>
> At the installation, I selected an empty partition named "ubuntu2" et
> checked the box for formating.
>
> After the installation process, at the first boot, rootfs couldn't be
> mounted : the bootarg was "root=UUID=ubuntu2"
>
> So I changed the preEnv.txt on my computer to "root=LABEL=ubuntu2" but
> sill couldn't boot, as the label was erased during format process.
>
> I fixed it thanks to busybox by putting back label "ubuntu2" to my
> /dev/sda2 partition.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/flash-kernel/+bug/1079185/+subscriptions

--
Thibault Jochem
Software Engineer
EFREI Promo 2007

ah, that explains it, thanks , i'll work on a fix

This bug was fixed in the package flash-kernel - 3.0~rc.4ubuntu28

---------------
flash-kernel (3.0~rc.4ubuntu28) raring; urgency=low

  * make sure blkid only gives us the UUID and not any other metadata like
    labels or filesystem (LP: #1079185)
 -- Oliver Grawert <email address hidden> Fri, 16 Nov 2012 15:40:21 +0100

Hello Tryum, or anyone else affected,

Accepted flash-kernel into quantal-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/flash-kernel/3.0~rc.4ubuntu27.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Despite spending a considerable amount of time trying, I have been unable to reproduce this bug in Quantal for verification of -proposed. This is currently blocking the resolution of bug 1084106 which I've just bumped to Critical.

I'd appreciate any help getting the fix for this bug verified so that we can land the fix for critical bug 1084106. I don't feel that there's anything more than I can do for this bug without assistance here.

If we can't get this verified very soon, I've proposed that we revert the fix for this bug in quantal-proposed in order to allow the SRU through for bug 1084106. In this case we'll have to defer the fix for this bug in Quantal until someone is ready verify it, and then put it through the SRU queue again.n

Verified that flash-kernel now behaves correctly on filesystems where blkid returns the label before the uuid. Of note, this won't fix the ubiquity-based installer, as flash-kernel-installer is built in to ubiquity (and thus the images), and we're not respinning quantal images, but this does fix this same bug in both the netboot installer and in userspace, post-install.

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

This bug was fixed in the package flash-kernel - 3.0~rc.4ubuntu27.1

---------------
flash-kernel (3.0~rc.4ubuntu27.1) quantal; urgency=low

  * Ask blkid for UUID, fixes finding filesystems with labels (LP: #1079185)
  * Determine the latest installed kernel version from the target instead
    of assuming the version is the same as the running kernel (LP: #1084106)
 -- Adam Conrad <email address hidden> Mon, 10 Dec 2012 09:31:39 -0700