Unfortunately, I don’t have a fix for this but wanted to mention that I am having the same issue. However, I had the issue whilst on Raspberry PI OS 32-bit also. I had a number of repairs showing and so decided to wipe my SD card and start again with 64-bit. I see the same warning with cgroup when installing homeassistant-supervised.
Do you still have this problem or do you have a fix?
I have an ARM-64 installed on my x96 mini. Other tips didn’t help, I found this one:
I have made changes to the “extlinux.conf” file sudo nano /boot/extlinux/extlinux.conf
to a line like this APPEND root=UUUID=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX rw rootwait console=ttyS0,115200 console=tty0 no_console_suspend consoleblank=0 loglevel=1
added “systemd.unified_cgroup_hierarchy=0.”
For me nothing works from the above posts. I followed the official instructions and all kind of fixes I found on the net but still not able to switch to cgroup 1