docker 安装错误

摘要: yum install docker 时，原因是因为device-mapper无法安装

yum install docker 时发现以下错误，原因是因为device-mapper无法安装

此相关bug信息为

https://bugs.launchpad.net/kolla/+bug/1534549

Transaction check error:
file /usr/lib/systemd/system/blk-availability.service from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
file /usr/sbin/blkdeactivate from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
file /usr/share/man/man8/blkdeactivate.8.gz from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64

Error Summary
-------------

sudo yum install -y device-mapper
Loaded plugins: langpacks
Resolving Dependencies
--> Running transaction check
---> Package device-mapper.x86_64 7:1.02.84-14.el7 will be updated
--> Processing Dependency: device-mapper = 7:1.02.84-14.el7 for package: 7:device-mapper-event-1.02.84-14.el7.x86_64
--> Processing Dependency: device-mapper = 7:1.02.84-14.el7 for package: 7:device-mapper-libs-1.02.84-14.el7.x86_64
---> Package device-mapper.x86_64 7:1.02.107-5.el7 will be an update
--> Running transaction check
---> Package device-mapper-event.x86_64 7:1.02.84-14.el7 will be updated
---> Package device-mapper-event.x86_64 7:1.02.107-5.el7 will be an update
--> Processing Dependency: device-mapper-event-libs = 7:1.02.107-5.el7 for package: 7:device-mapper-event-1.02.107-5.el7.x86_64
---> Package device-mapper-libs.x86_64 7:1.02.84-14.el7 will be updated
---> Package device-mapper-libs.x86_64 7:1.02.107-5.el7 will be an update
--> Running transaction check
---> Package device-mapper-event-libs.x86_64 7:1.02.84-14.el7 will be updated
---> Package device-mapper-event-libs.x86_64 7:1.02.107-5.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

==================================================================================================================
Package Arch Version Repository Size
==================================================================================================================
Updating:
device-mapper x86_64 7:1.02.107-5.el7 base 251 k
Updating for dependencies:
device-mapper-event x86_64 7:1.02.107-5.el7 base 167 k
device-mapper-event-libs x86_64 7:1.02.107-5.el7 base 169 k
device-mapper-libs x86_64 7:1.02.107-5.el7 base 304 k

Transaction Summary
==================================================================================================================
Upgrade 1 Package (+3 Dependent packages)

Total size: 891 k
Downloading packages:
Running transaction check
Running transaction test

Transaction check error:
file /usr/lib/systemd/system/blk-availability.service from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
file /usr/sbin/blkdeactivate from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
file /usr/share/man/man8/blkdeactivate.8.gz from install of device-mapper-7:1.02.107-5.el7.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64

Error Summary
-------------

修复错误：

# yum upgrade lvm2

再进行安装就可以了