Comment 6 for bug 1863145

Some test packages for focal and bionic are available from the following PPA:

https://launchpad.net/~waveform/+archive/ubuntu/flash-kernel/+packages

The relevant branches are:

https://code.launchpad.net/~waveform/ubuntu/+source/flash-kernel/+git/flash-kernel/+ref/no-lxc-focal

https://code.launchpad.net/~waveform/ubuntu/+source/flash-kernel/+git/flash-kernel/+ref/no-lxc-bionic

In the focal version I've also taken the liberty of excising FLASH_KERNEL_SKIP as it's no longer used by anything in focal (it's only used by the ac100 platform in bionic), which reduces our delta with upstream. In both versions, the test for containers is moved from the initramfs and kernel hooks into flash-kernel itself. This should fix the upgrade issue, but do let me know if any other issues crop up in testing!