Description of problem: The lxc-containers that used to work fine with F31, no longer start when trying with F32 (beta). Version-Release number of selected component (if applicable): lxc 3.2.1. Steps to Reproduce: sudo lxc-start -n mycontainer -F [sudo] password for user: Failed to mount cgroup at /sys/fs/cgroup/systemd: Operation not permitted [!!!!!!] Failed to mount API filesystems. Exiting PID 1...
If I disable the unified cgroup hierarchy, i.e., sudo grub2-editenv - set "$(grub2-editenv - list | grep kernelopts) systemd.unified_cgroup_hierarchy=0" lxc-start: mycontainer: cgroups/cgfsng.c: __do_cgroup_enter: 1500 No space left on device - Failed to enter cgroup "/sys/fs/cgroup/cpuset//lxc.monitor/mycontainer/cgroup.procs"
Oh, but after the above change and downgrading to lxc 3.0.3, things work again.
see this related discussion: https://discuss.linuxcontainers.org/t/cannot-launch-containers-with-lxd-3-15-and-lxc-3-2-1/5346/5 There is a patch mentioned: https://github.com/lxc/lxc/pull/3109/files in the lxc.spec changelog I see: * Mon Sep 9 2019 Thomas Moschny <thomas.moschny> - 3.0.4-2 - Add patches to fix cgroups cpuset initialization (rhbz#1750031). Yes, the patch was dropped for 3.2.1 in https://src.fedoraproject.org/rpms/lxc/c/a47399361c68e7818883bb4fe13cf923814e588a?branch=master Ok, the patch was probably dropped because part of it was already in the upstream tarball. But some of it is still missing. I have built a copr of 3.2.1 plus the patch a47399361c68e7818883bb4fe13cf923814e588a, and it works again to start the container: https://copr.fedorainfracloud.org/coprs/tpokorra/lxc3/ Here is a pull request on pagure: https://src.fedoraproject.org/rpms/lxc/pull-request/1
sorry, my comment was wrong, I did not apply patch a47399361c68e7818883bb4fe13cf923814e588a, but the patch from the upstream pull request: https://github.com/lxc/lxc/commit/b31d62b847a3ee013613795094cce4acc12345ef.patch
An update to 4.0.5 has been created for F32: https://bodhi.fedoraproject.org/updates/FEDORA-2020-f44601cdfd . Please retry with that version.
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