[Bug 2050209] Re: Add support for ubuntu-server live largemem SUBARCH images (64k kernel variant)

[Steve Langasek]

Hello Łukasz, or anyone else affected,

Accepted livecd-rootfs into jammy-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/livecd-
rootfs/2.765.38 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: livecd-rootfs (Ubuntu Jammy)
       Status: In Progress => Fix Committed

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

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https://bugs.launchpad.net/bugs/2050209

Title:
  Add support for ubuntu-server live largemem SUBARCH images (64k kernel
  variant)

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Jammy:
  Fix Committed
Status in livecd-rootfs source package in Mantic:
  Won't Fix

Bug description:
  [Impact]

  Since a while, our linux kernel packages also build a 64k page-size
  kernel variant alongside the regular generic 4k ones for arm64. We had
  requests coming from various places on making it easier for people to
  get an ubuntu-server installation with this kernel variant. After many
  discussions, it has been decided that for now - for noble and jammy -
  we would ideally want a new image with this kernel as default. The
  naming has been decided to be 'largemem', for environments with large
  memory requirements.

  [Test Case]

  Once package accepted into proposed, build both an arm64+largemem
  ubuntu-server daily-live image and an arm64 (no largemem) ubuntu-
  server image and make sure the images build fine (and gets published
  on cdimage). Download the image and confirm that the kernel shipped
  (and offered) in the largemem image are the 64k variants (generic, hwe
  - if available).

  [Regression Potential]

  Not much regression potential, but these changes could break other
  image builds, resulting with build failures. Also, rather impossible,
  but the changes could also affect the kernels shipped with other
  server images.

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