在使用docker容器yum安装时出现类似的错误：

Transaction check error:
file /usr/lib64/libsystemd-daemon.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-id128.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-journal.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-login.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libudev.so.1 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/security/pam_systemd.so from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64

这是由于从systemd-容器*包实际systemd的过渡。出于某种原因，上游包不过时或发生冲突，所以你会在安装包时出错。 解决办法是获取最新的centos镜像。或者执行命令：

yum install -y   libsystemd-daemon.so.0    libsystemd-id128.so.0  libsystemd-journal.so.0 libsystemd-login.so.0 libudev.so.1  systemd-container-libs

只能是祝你好运。

另外就是docker容器里面启动服务时出现：

Failed to get D-Bus connection: Operation not permitted

首先恭喜你使用centos7镜像，然后就是不幸告诉你这个问题是个BUG 将在centos7.2解决。

目前能做的就是使用其他的方式启动。或者看我的另一篇微博：http://welcomeweb.blog.51cto.com/10487763/1735251

Currently, systemd in CentOS 7 has been removed and replaced with a fakesystemd package for dependency resolution. This is due to systemd requiring the CAP_SYS_ADMIN capability, as well as being able to read the host's cgroups. If you wish to replace the fakesystemd package and use systemd normally, please follow the steps below.

本文转自    憬薇   51CTO博客，原文链接:http://blog.51cto.com/welcomeweb/1732589