@geerlingguy TrueNAS has an arm64 build available. Now is the time to test zfs raid on rpi. Plus you can feedback the patches to add gpu support to their builds.

@linuxuserspace Also, apt install kexec-tools for kernel upgrades without reboot. It will ask if you want kecec to handle kernel changes. No more required rebooting.

@linuxuserspace On Ubuntu the command you need is do-release-upgrade This will safely update you to the next LTS release.