casper needs to handle the overlayfs workdir in later kernels

This bug was fixed in the package casper - 1.347

---------------
casper (1.347) vivid; urgency=low

  * scripts/casper: move union content into a subdirectory of the /cow
    device, to allow us to create a workdir where that is needed for
    overlayfs. Also attempt to mount overlayfs with and without the
    workdir= to cope with the semantic change in newer kernels.
    (LP: #1401620)
 -- Andy Whitcroft <email address hidden> Sun, 14 Dec 2014 11:21:49 +0000

This also needs to be SRUed into Trusty, to allow smooth operations with hwe backport in 14.04.2.

@Xnox -- thanks for the reminder, and task. Will do that next.

Andy,

 I met this issue in oem image, so do you have any plan to backport to 14.04.3 recently? Thanks!

Hello Andy, or anyone else affected,

Accepted casper into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/casper/1.340.1 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 add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and 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!

This bug was fixed in the package casper - 1.340.1

---------------
casper (1.340.1) trusty; urgency=low

  * scripts/casper: move union content into a subdirectory of the /cow
    device, to allow us to create a workdir where that is needed for
    overlayfs. Also attempt to mount overlayfs with and without the
    workdir= to cope with the semantic change in newer kernels.
    (LP: #1401620)
  * scripts/casper: switch up to overlayfs V2 format (overlay filesystem
    type) when available. (LP: #1412411)

 -- Andy Whitcroft <email address hidden> Wed, 08 Jul 2015 14:57:11 +0100

The verification of the Stable Release Update for casper 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 regressions.