背景

在CentOS 6上為了使用docker，於是升級了核心到3.10版本，然後安裝repo源和docker元件，

yum install epel-release
yum install docker-io

一切都很順利，然後啟動docker服務，以及檢視docker服務狀態，結果報錯了，

[[email protected] run]# service docker start
Starting docker:	                                   [  OK  ]
[[email protected] run]# service docker status
docker dead but pid file exists
 

原因

其實原因就是device-mapper相關元件的版本過低了，因此需要單獨升級這幾個元件，

yum install -y \
    http://vault.centos.org/6.6/os/x86_64/Packages/device-mapper-libs-1.02.90-2.el6.x86_64.rpm \
    http://vault.centos.org/6.6/os/x86_64/Packages/device-mapper-1.02.90-2.el6.x86_64.rpm  \
    http://vault.centos.org/6.6/os/x86_64/Packages/device-mapper-event-1.02.90-2.el6.x86_64.rpm \
    http://vault.centos.org/6.6/os/x86_64/Packages/device-mapper-event-libs-1.02.90-2.el6.x86_64.rpm 
 

升級之後再次啟動docker服務，查詢服務，顯示程序正常。

[[email protected] docker]# service docker start
Starting docker:	                                   [  OK  ]
[[email protected] docker]# service docker status
docker (pid  19680) is running...

注：

如果沒有升級device-mapper相關元件，安裝docker後直接執行docker命令啟動程序，則會有以下報錯，

[[email protected]
 
 docker]# docker -d
docker: relocation error: docker: symbol dm_task_get_info_with_deferred_remove, version Base not defined in file libdevmapper.so.1.02 with link time reference

解決方案是一樣的，升級device-mapper相關元件即可。