On Tue, Mar 03, 2020 at 12:06:11PM -0500, Steve Dickson wrote:
> I'm trying to start the docker service on F31 (5.5.7-200.fc31.x86_64)
> and I'm getting the following error
>
> ? docker.service - Docker Application Container Engine
> Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset:
disabled)
> Active: failed (Result: exit-code) since Tue 2020-03-03 11:36:19 EST; 1min 37s
ago
> Docs:
http://docs.docker.com
> Process: 6855 ExecStart=/usr/bin/dockerd-current --add-runtime
oci=/usr/libexec/docker/docker-runc-current --default-runtime=oci
--authorization-plugin=rhel-push-plugin --containerd /run/containerd.sock --exec-opt
native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current
--init-path=/usr/libexec/docker/docker-init-current
--seccomp-profile=/etc/docker/seccomp.json $OPTIONS $DOCKER_STORAGE_OPTIONS
$DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY $REGISTRIES
(code=exited, status=1/FAILURE)
> Main PID: 6855 (code=exited, status=1/FAILURE)
> CPU: 124ms
>
> time="2020-03-03T11:36:19.140274478-05:00" level=info msg="Graph
migration to content-addressability took 0.00 seconds"
> time="2020-03-03T11:36:19.141106888-05:00" level=warning msg="Your
kernel does not support cgroup memory limit"
> time="2020-03-03T11:36:19.141141530-05:00" level=warning msg="Unable
to find cpu cgroup in mounts"
> time="2020-03-03T11:36:19.141158734-05:00" level=warning msg="Unable
to find blkio cgroup in mounts"
> time="2020-03-03T11:36:19.141175193-05:00" level=warning msg="Unable
to find cpuset cgroup in mounts"
> time="2020-03-03T11:36:19.141249230-05:00" level=warning
msg="mountpoint for pids not found"
> Error starting daemon: Devices cgroup isn't mounted
> docker.service: Main process exited, code=exited, status=1/FAILURE
> docker.service: Failed with result 'exit-code'.
> Failed to start Docker Application Container Engine.
>
> Is there no cgroup support in the current f31 kernel?
Fedora 31 defaults to cgroup2 and you can either use Podman with cgroup2
support or reboot with cgroup1 support using the kernel command-line:
systemd.unified_cgroup_hierarchy=0
Interesting.... Thanks for the info!
steved.
Adrian
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