Hi There,
Facing the same issue on a totally out of support Nanopi Neo 3 running Armbian Bullseye, I could find back the way of support by adding the right configuration at the the right place.
What’s required is to launch the kernel with this specific Systemd parameter:
systemd.unified_cgroup_hierarchy=false
So basically in grub as it’s the system loader for many PCs, but which is not for many SBC (all ?).
But to achieve this, there are other ways, like in my Nanopi, I just had to edit /boot/armbianEnv.txt file and append to following in a new line:
extraargs=systemd.unified_cgroup_hierarchy=false
I believe there is a similar possibility using /boot/cmdline.txt with Raspberry PI…
Hope this can help someone