We seem to have the right package in the images but v4l2loopback-dkms
still seems to be installed.

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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 Released
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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