root@localhost:~# dockerd --debug
INFO[2025-08-10T00:25:01.385182356+08:00] Starting up
DEBU[2025-08-10T00:25:01.386943748+08:00] Listener created for HTTP on unix (/var/run/docker.sock)
INFO[2025-08-10T00:25:01.387738465+08:00] OTEL tracing is not configured, using no-op tracer provider
DEBU[2025-08-10T00:25:01.426863357+08:00] Golang's threads limit set to 13680
DEBU[2025-08-10T00:25:01.427828783+08:00] metrics API listening on /var/run/docker/metrics.sock
DEBU[2025-08-10T00:25:01.450620178+08:00] Using default logging driver json-file
DEBU[2025-08-10T00:25:01.451420353+08:00] No quota support for local volumes in /var/lib/docker/volumes: Filesystem does not support, or has not enabled quotas
DEBU[2025-08-10T00:25:01.451835816+08:00] processing event stream module=libcontainerd namespace=plugins.moby
DEBU[2025-08-10T00:25:01.683963352+08:00] Cleaning up old mountid : start.
failed to start daemon: Devices cgroup isn't mounted
root@localhost:~# mount | grep devices
root@localhost:~# mount | grep cgroup
tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
root@localhost:~#
有点崩溃了。
