Many thanks to all those that maintain FOSS. i had setup a pi4 running 32 bit Debian Buster years ago (pandemic days) with OpenMediaVault 5. With the OMV docker and portainer plugin I had various dockers running, but found some dockerhub images weren’t supporting 32bit. I had thought ubout updating to 64 bit install but thought I might have headaches, so just blocked the pi from accessing the internet and sidelined the update. Since it is the holidays I figured I would tackle an update.

Scope:

• update to 64 bit
• move from Buster to Bullseye
• move from OMV5 to OMV6
• fix everything that failed including docker.

Step 1 add “arm_64bit=1” in the config.txt file of /boot and reboot. Took a while to boot with lots of drive activity but 64 kernel worked perfectly.

Step 2: run sudo omv-release-upgrade

That is it. Two commands and everything updated perfectly. Nothing to fix.

To me that is an amazing testament to the work put in by everyone for Linux kernel, the OS, OMV devs, and Applications maintainers. Amazing.