ubuntustudio-bugs team mailing list archive

[Łukasz Zemczak <1983136@xxxxxxxxxxxxxxxxxx>]

Hello Erich, or anyone else affected,

Accepted ubuntustudio-meta into jammy-proposed. The package will build
now and be available at
https://launchpad.net/ubuntu/+source/ubuntustudio-meta/0.266.2 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-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. 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: ubuntustudio-meta (Ubuntu Jammy)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-jammy

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https://bugs.launchpad.net/bugs/1983136

Title:
  [SRU] v4l2loopback-dkms breaks secure boot installation in seed

Status in ubuntustudio-meta package in Ubuntu:
  Fix Released
Status in ubuntustudio-meta source package in Jammy:
  Fix Committed
Status in ubuntustudio-meta source package in Kinetic:
  Fix Released

Bug description:
  [Impact]

   * For users installing Ubuntu Studio 22.04 LTS on secure boot
  machines, this is currently not possible as v4l2loopback-dkms is
  currently seeded.

   * When v4l2loopback-dkms attempts to compile during installation on a
  secure boot machine without user interaction with calamares, it
  completely fails and the system installation fails.

   * In order to proceed, v4l2loopback-dkms must be removed from the
  seed and the ubuntustudio-video meta.

   * This was recently discovered while working with the Lubuntu team
  and undergoing extensive testing with the new Calamares. While it was
  not an issue with Calamares, it did point to the issue with
  v4l2loopback and explained some complaints received in the
  #ubuntustudio IRC chat.

  [Test Plan]

   * Download Ubuntu Studio 22.04 ISO image.

   * Attempt to install on machine with Secure Boot enabled.

   * Installation will fail when v4l2loopback-dkms modules attempt to
  compile and install to kernel.

  [Where problems could occur]

   * Problems can occur when existing users update and end up with
  v4l2loopback-dkms marked as autoremovable and run 'sudo apt
  autoremove', which will unexpectedly remove this package from their
  system. Unfortunately, there's no good way to mitigate this except to
  advise to reinstall this package.

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