[Bug 1859478] Re: Use the 5.3 kernel for the raspi3 bionic 18.04.4 images

[Brian Murray]

Hello Łukasz, or anyone else affected,

Accepted livecd-rootfs into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/livecd-
rootfs/2.525.38 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 and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. 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.

** Tags removed: verification-done verification-done-bionic
** Tags added: verification-needed verification-needed-bionic

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https://bugs.launchpad.net/bugs/1859478

Title:
  Use the 5.3 kernel for the raspi3 bionic 18.04.4 images

Status in livecd-rootfs package in Ubuntu:
  Invalid
Status in livecd-rootfs source package in Bionic:
  Fix Committed

Bug description:
  [Impact]

  Currently our bionic images only support the pi2, pi3 and cm3 families
  of devices. For 18.04.4 we would also like to enable support for the
  pi4 (available in eoan+). For this to work, kernel support is required
  - this can be achieved by either backporting all the needed pi4
  patches to the 4.15 kernel *or* using the 5.3 raspi one from focal
  that has already been tested and working. We decided that using 5.3 is
  the smartest and safest bet, so for this to work we need to use a
  different kernel flavour - linux-raspi2-5.3.

  This requires a change in livecd-rootfs to pull in the new kernel
  flavour for our raspi3 images.

  [Test Case]

  Build a raspi3 classic bionic image via cdimage with -proposed
  enabled. Confirm that linux-raspi2-5.3 is used instead of linux-
  raspi2.

  [Regression Potential]

  None really. The only thing that could go wrong is that the raspi3
  images would be using the wrong kernel - but that would fail
  verification then.

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