devicemapper: Error running deviceCreate (ActivateDevice) dm_task_run failed
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在一台新机子上面,docker处理完lvs数据卷之后,启动docker服务时,出现了启动失败,失败信息如下:
[[email protected] ~]# systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled) Drop-In: /usr/lib/systemd/system/docker.service.d └─flannel.conf Active: failed (Result: exit-code) since Tue 2018-07-24 14:06:15 CST; 4s ago Docs: https://docs.docker.com Process: 28723 ExecStart=/usr/bin/dockerd $DOCKER_NETWORK_OPTIONS $DOCKER_NETWORK_OPTIONS $DOCKER_STORAGE_OPTIONS (code=exited, status=1/FAILURE) Main PID: 28723 (code=exited, status=1/FAILURE) Memory: 412.0K CGroup: /system.slice/docker.service Jul 24 14:06:14 hxin221 systemd[1]: Starting Docker Application Container Engine... Jul 24 14:06:14 hxin221 dockerd[28723]: time="2018-07-24T14:06:14.416711161+08:00" level=info msg="libcontainerd: new containerd process, pid: 28738" Jul 24 14:06:15 hxin221 dockerd[28723]: Error starting daemon: error initializing graphdriver: devmapper: Base Device UUID and Filesystem verification failed: devicemapper: Error running deviceCreate (ActivateDevice) dm_task_run failed Jul 24 14:06:15 hxin221 systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Jul 24 14:06:15 hxin221 systemd[1]: Failed to start Docker Application Container Engine. Jul 24 14:06:15 hxin221 systemd[1]: Unit docker.service entered failed state. Jul 24 14:06:15 hxin221 systemd[1]: docker.service failed.
总的来说就是:
Error starting daemon: error initializing graphdriver: devmapper: Base Device UUID and Filesystem verification failed: devicemapper: Error running deviceCreate (ActivateDevice) dm_task_run failed
好吧,这个错误,之前没有遇到过,踩了很多坑,最终,想了想,莫非这台机子早先时候已经装了docker,然后旧数据导致的?
于是乎,就抱着试试看的目的,执行了如下操作:
[[email protected] ~]# rm -rf /var/lib/docker/*
没错,清除了docker的数据,由于是新机子,我也没有做什么备份处理,其他小伙伴如果又遇到的话,记得先备份数据。
于是,重启服务
[[email protected] ~]# systemctl restart docker
OK,问题不大,解决了。
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