Comment 21 for bug 1998229

Thanks Brian. Samir is OOO so I'll cover the verification steps.

The test plan from this bug's summary is only applicable when this package is released into -
updates.
So here's my current test plan to verify the -proposed pocket:

1. git clone https://github.com/ubuntu-bartenders/ubuntu-old-fashioned
2. cd ubuntu-old-fashioned/scripts/ubuntu- bartender
3.
    for SERIES in bionic focal jammy kinetic
    do
        ./ubuntu-bartender --build-provider multipass \
            --livecd-rootfs-repo https://git.launchpad.net/ubuntu/+source/livecd-rootfs \
            --livecd-rootfs-branch ubuntu/$SERIES-proposed -- --project ubuntu-oci --series $SERIES
    done

Each of the above bartender calls will produce a tarball with a different random name. Let's say
(for the sake of readability in this test plan) that those are "$SERIES-ubuntu-on-the-rocks.tar.gz":

4.
    for SERIES in bionic focal jammy kinetic
    do
      mkdir $SERIES-build
      tar -xf $SERIES-ubuntu-on-the-rocks.tar.gz -C $SERIES-build
      sudo mount $SERIES-build/build.output/livecd.ubuntu-oci.ext4 /mnt
      grep serial /mnt/etc/cloud/build. info
      sudo umount /mnt
    done

I've tested this, and I could see the /etc/cloud/build.info file (with the "serial" content) on
bionic, focal, jammy and kinetic.
This fixes the bug for me.

Thanks!
P.S> I don't think I have the right to "change the tag from verification-needed-bionic to verification-done-bionic".