Attached the uploaded diff for jammy. Besides the few lines changed in scripts/functions I backported the improvements of the autopkgtest to increase the test coverage and to test on all architectures. See https://code.launchpad.net/~ubuntu-core-dev/ubuntu/+source/initramfs-tools/+git/initramfs-tools/+ref/ubuntu/jammy for the individual commits for details. I tested the autopkgtest changes in my PPA.
Attached the uploaded diff for jammy. Besides the few lines changed in scripts/functions I backported the improvements of the autopkgtest to increase the test coverage and to test on all architectures. See https:/ /code.launchpad .net/~ubuntu- core-dev/ ubuntu/ +source/ initramfs- tools/+ git/initramfs- tools/+ ref/ubuntu/ jammy for the individual commits for details. I tested the autopkgtest changes in my PPA.