On 19/03/2021 11.40, Samir Nassar via arch-general wrote:
from /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="consoleblank=0 nomodeseti systemd.unified_cgroup_hierarchy=1"
$ ls -al /sys/fs/cgroup total 0 dr-xr-xr-x 11 root root 0 Mar 19 10:56 . drwxr-xr-x 7 root root 0 Mar 19 10:56 .. -r--r--r-- 1 root root 0 Mar 19 10:56 cgroup.controllers -rw-r--r-- 1 root root 0 Mar 19 10:57 cgroup.max.depth -rw-r--r-- 1 root root 0 Mar 19 10:57 cgroup.max.descendants -rw-r--r-- 1 root root 0 Mar 19 10:56 cgroup.procs -r--r--r-- 1 root root 0 Mar 19 10:57 cgroup.stat -rw-r--r-- 1 root root 0 Mar 19 10:56 cgroup.subtree_control -rw-r--r-- 1 root root 0 Mar 19 10:57 cgroup.threads -rw-r--r-- 1 root root 0 Mar 19 10:57 cpu.pressure -r--r--r-- 1 root root 0 Mar 19 10:57 cpuset.cpus.effective -r--r--r-- 1 root root 0 Mar 19 10:57 cpuset.mems.effective ...
I'm using rootless podman without any issues. I only had to create subuid and subgid mappings. I didn't need to modify any kernel parameters to get cgroupsv2 to work. According to [cgroups(7)], modern systemd should automatically mount cgroups2 hierarchy under /sys/fs/cgroup/unified - so I think this is the path you need to look for to determine cgroupsv2 support. [cgroups(7)] - https://man.archlinux.org/man/cgroups.7#Cgroups_v2_unified_hierarchy -- Tomas Krizek PGP: 4A8B A48C 2AED 933B D495 C509 A1FB A5F7 EF8C 4869