Converting RHEL 8-type distros to cgroup version 2 #
It’s an easy matter to convert a Red Hat Enterprise Linux 8-type distro to cgroup Version
1.is to edit the /etc/default/grub file on your AlmaLinux machine. Find the line that starts with GRUB_CMDLINE_LINUX=. At the end of that line, add systemd.unified_cgroup_hierarchy=1. The whole line should now look like this:
GRUB_CMDLINE_LINUX="crashkernel=auto resume=/dev/mapper/vl-swap rd.lvm.lv=vl/root rd.lvm.lv=vl/swap rhgb quiet systemd.unified_cgroup_hierarchy=1"
Next, rebuild the GRUB configuration, like this:
[donnie@localhost ~]$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg
Reboot the machine, and then look in the sys/fs/cgroup directory.