cgroupv2

root@node-1:~# systemd-cgls --no-pager CGroup /: -.slice ├─qemu.slice │ └─200.scope │ └─3089943 /usr/bin/kvm -id 200 -name vm-01,debug-threads=on -no-shutdown -chardev socket,id=qmp,path=/v… ├─init.scope │ └─1 /sbin/init ├─system.slice │ └─<truncated system stuff> ├─lxc │ ├─100 │ │ └─ns │ │...

When running the pve7to8 checklist script I get this warning: "WARN: Found at least one CT (157) which does not support running in a unified cgroup v2 layout. Consider upgrading the Containers distro or set systemd.unified_cgroup_hierarchy=0 in the Proxmox VE hosts' kernel cmdline! Skipping...