''sudo systemctl start docker '' doesn't work

Docker Hub
,
1

Job for docker.service failed because the control process exited with error code. See “systemctl status docker.service” and “journalctl -xe” for

I am new to docker and cannot understand these errors. So, Please let me know if any more information is needed. `

[root@localhost docker]# systemctl start docker
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

systemctl status docker.service` output:

● docker.service - Docker Application Container Engine
   Loaded: loaded (/etc/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Sun 2023-04-02 01:34:47 CEST; 5min ago
     Docs: https://docs.docker.com
  Process: 9060 ExecStart=/usr/bin/dockerd --registry-mirror=<your accelerate address> -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
 Main PID: 9060 (code=exited, status=1/FAILURE)

Apr 02 01:34:44 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.
Apr 02 01:34:44 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
Apr 02 01:34:44 localhost.localdomain systemd[1]: docker.service failed.
Apr 02 01:34:47 localhost.localdomain systemd[1]: docker.service holdoff time over, scheduling restart.
Apr 02 01:34:47 localhost.localdomain systemd[1]: Stopped Docker Application Container Engine.
Apr 02 01:34:47 localhost.localdomain systemd[1]: start request repeated too quickly for docker.service
Apr 02 01:34:47 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.
Apr 02 01:34:47 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
Apr 02 01:34:47 localhost.localdomain systemd[1]: docker.service failed.

journalctl -xeoutput

Apr 02 01:34:42 localhost.localdomain systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Apr 02 01:34:42 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has failed.
-- 
-- The result is failed.
Apr 02 01:34:42 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
Apr 02 01:34:42 localhost.localdomain systemd[1]: docker.service failed.
Apr 02 01:34:44 localhost.localdomain systemd[1]: docker.service holdoff time over, scheduling restart.
Apr 02 01:34:44 localhost.localdomain systemd[1]: Stopped Docker Application Container Engine.
-- Subject: Unit docker.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has finished shutting down.
Apr 02 01:34:44 localhost.localdomain systemd[1]: Starting Docker Application Container Engine...
-- Subject: Unit docker.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has begun starting up.
Apr 02 01:34:44 localhost.localdomain dockerd[9060]: Status: invalid argument "<your" for "--registry-mirror" flag: invalid mirror: unsupported scheme "" in "%3Cyour"
Apr 02 01:34:44 localhost.localdomain dockerd[9060]: See 'dockerd --help'., Code: 125
Apr 02 01:34:44 localhost.localdomain systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Apr 02 01:34:44 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has failed.
-- 
-- The result is failed.
Apr 02 01:34:44 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
Apr 02 01:34:44 localhost.localdomain systemd[1]: docker.service failed.
Apr 02 01:34:47 localhost.localdomain systemd[1]: docker.service holdoff time over, scheduling restart.
Apr 02 01:34:47 localhost.localdomain systemd[1]: Stopped Docker Application Container Engine.
-- Subject: Unit docker.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has finished shutting down.
Apr 02 01:34:47 localhost.localdomain systemd[1]: start request repeated too quickly for docker.service
Apr 02 01:34:47 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit docker.service has failed.
-- 
-- The result is failed.
Apr 02 01:34:47 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
Apr 02 01:34:47 localhost.localdomain systemd[1]: docker.service failed.
lines 2500-2554/2554 (END)

Docker version:

Docker version 24.0.0-beta.1, build 33961a7

Linux kernel version:

Linux localhost.localdomain 3.10.0-1160.88.1.el7.x86_64 #1 SMP Tue Mar 7 15:41:52 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

CentOS version:

CentOS Linux release 7.9.2009 (Core)

I notice journalctl -xeoutput said that Status: invalid argument "<your" for "--registry-mirror" flag: invalid mirror: unsupported scheme "" in "%3Cyour", but I can’t find where to modify it. I have tried to reinstall docker, delete the daemon.json but they didn’t work.

2

Since it is complaining about a command line argument, you should find it in the systemd service or maybe /etc/default/docker

The status output shows you where the service configuration file is which is usually the target of a symbolic link at /etc/systemd/system/multi-user.target.want/docker.service

I know you already got an answer on stackoverflow too and had another error with the docker info command. One thing I noticed is that you are using a beta version of Docker. You should use stable version.