Control: retitle -1 lxc: CentOS 7 containers require cgroup v1 controller Control: tags -1 + confirmed wontfix
Hi Michael, Sorry that no one responded to this bug until now. The issue you are seeing is caused by the version of systemd in CentOS 7 expecting a cgroup v1 controller to be available, which isn't the case in recent versions of Debian. (Not sure exactly when, maybe starting with the bullseye release?) As a workaround, you can add "systemd.unified_cgroup_hierarchy=0" to your host kernel boot parameters which will switch systemd's cgroup setup from unified to hybrid. After rebooting, I was able to successfully start a working CentOS 7 container on my sid machine. There's nothing that lxc itself can do about this, so tagging with wontfix but keeping the bug open for anyone else who might encounter this issue in the future. Mathias
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