[Bug 1893675] Re: Autopkgtest failure on latest version of initramfs-tools - lack of partprobe

[Timo Aaltonen]

Hello Guilherme, or anyone else affected,

Accepted initramfs-tools into focal-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/initramfs-
tools/0.136ubuntu6.3 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 on 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, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

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

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: initramfs-tools (Ubuntu Focal)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-focal

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https://bugs.launchpad.net/bugs/1893675

Title:
  Autopkgtest failure on latest version of initramfs-tools - lack of
  partprobe

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Focal:
  Fix Committed
Status in initramfs-tools source package in Groovy:
  Fix Released

Bug description:
  [Impact]
  * Currently the initramfs-tools autopkgtest fails for at least AMD64, with the following signature:
  "mount: /tmp/autopkgtest.K1r92h/build.zdS/src/mnt: special device /dev/loop0p1 does not exist."

  * The reason for that is the test trying immediately to use that
  partition on the loop device, but kernel may not have a partition re-
  read ioctl issued, so the test may fail as observing a nonexistent
  partition.

  * The fix proposed here is just to manually run "partprobe" before
  using the new to-be-discovered loop partition in the net autopkgtest.

  [Test Case]
  * Run the autopkgtest suite in the initramfs-tools package and observe the failure aforementioned.

  [Regression Potential]
  * Extremely low potential, we are just introducing a partition re-read/probe operation during autopkgtest phase, in order to keep the partition table of loop devices consistent before the test uses it.
  * The only potential issue I see with that is if for some reason we don't have partprobe in the autopkgtest environment, but that shouldn't happen since parted package is on ubuntu-standard.

  * Notice that this test is not executed in Debian CI given that CI has
  no support for VMs, and this test requires that. [See the
  Rectification below]

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