异常1
在Linux系统中安装MySQL时报错：
[root@localhost mysql]# rpm -ivh mysql-community-common-5.7.34-1.el6.i686.rpm
warning: mysql-community-common-5.7.34-1.el6.i686.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/danish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/dutch/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/english/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/estonian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/french/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/german/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/greek/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/hungarian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/italian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/japanese/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/korean/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/norwegian-ny/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/norwegian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/polish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/portuguese/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/romanian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/russian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/serbian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/slovak/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/spanish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/swedish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/ukrainian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/Index.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/armscii8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/ascii.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp1250.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp1251.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp1256.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp1257.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp850.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp852.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/cp866.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/dec8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/geostd8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/greek.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/hebrew.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/hp8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/keybcs2.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/koi8r.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/koi8u.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/latin1.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/latin2.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/latin5.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/latin7.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/macce.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/macroman.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
file /usr/share/mysql/charsets/swe7.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mysql-libs-5.1.61-4.el6.i686
原因1
系统中已有mysql相关的文件了。
Linux安装时默认会有些MySQL相关文件。
输入rpm -qa|grep mysql命令查看系统中是否已有mysql，发现已有了
解决1
所以执行需要卸载掉自带的mysql，执行rpm -e --nodeps mysql-libs命令，而mysql-libs上面的文件名
再次查找，就没有mysql了，可以进行安装了，需要注意安装的顺序，安装的顺序如下：
异常2
[root@localhost installation-package]# rpm -ivh mysql-community-common-5.7.34-1.el6.i686.rpm
警告：mysql-community-common-5.7.34-1.el6.i686.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/dutch/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/english/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/estonian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/french/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/german/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/greek/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/hungarian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/italian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/japanese/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/korean/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/norwegian-ny/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/norwegian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/polish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/portuguese/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/romanian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/russian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/serbian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/slovak/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/spanish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/swedish/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/ukrainian/errmsg.sys from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/Index.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/armscii8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/ascii.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1250.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1251.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1256.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1257.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp850.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp852.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp866.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/dec8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/geostd8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/greek.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/hebrew.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/hp8.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/keybcs2.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/koi8r.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/koi8u.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin1.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin2.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin5.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin7.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/macce.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/macroman.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/swe7.xml from install of mysql-community-common-5.7.34-1.el6.i686 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
原因2
我安装的mysql包是32位的，而我Linux系统是CentOS7并且64位的。
可以使用uname -a命令查看Linux系统是32位还是64位
解决2
从官网上下载64位的安装包进行安装。注意根据自己的系统版本来选择。
异常3
[root@localhost mysql]# rpm -ivh mysql-community-common-5.7.34-1.el7.x86_64.rpm
警告：mysql-community-common-5.7.34-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/dutch/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/english/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/estonian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/french/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/german/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/greek/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/hungarian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/italian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/japanese/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/korean/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/norwegian-ny/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/norwegian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/polish/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/portuguese/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/romanian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/russian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/serbian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/slovak/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/spanish/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/swedish/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/ukrainian/errmsg.sys from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/Index.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/armscii8.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/ascii.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1250.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1251.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1256.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp1257.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp850.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp852.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/cp866.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/dec8.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/geostd8.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/greek.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/hebrew.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/hp8.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/keybcs2.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/koi8r.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/koi8u.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin1.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin2.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin5.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/latin7.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/macce.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/macroman.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
file /usr/share/mysql/charsets/swe7.xml from install of mysql-community-common-5.7.34-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.68-1.el7.x86_64
原因3
即我们要安装的包和系统已有的包发生了冲突：
解决3
执行yum -y remove mariadb-libs-1:5.5.68-1.el7.x86_64命令移除冲突的包，其中mariadb-libs-1:5.5.68-1.el7.x86_64就是冲突的包名，卸载产生的日志如下：
[root@localhost mysql]# yum -y remove mariadb-libs-1:5.5.68-1.el7.x86_64
已加载插件：fastestmirror
正在解决依赖关系
--> 正在检查事务
---> 软件包 mariadb-libs.x86_64.1.5.5.68-1.el7 将被 删除
--> 正在处理依赖关系 libmysqlclient.so.18()(64bit)，它被软件包 2:postfix-2.10.1-9.el7.x86_64 需要
--> 正在处理依赖关系 libmysqlclient.so.18(libmysqlclient_18)(64bit)，它被软件包 2:postfix-2.10.1-9.el7.x86_64 需要
--> 正在检查事务
---> 软件包 postfix.x86_64.2.2.10.1-9.el7 将被 删除
--> 解决依赖关系完成
依赖关系解决
=========================================================================================================================================================
Package 架构 版本 源 大小
=========================================================================================================================================================
正在删除:
mariadb-libs x86_64 1:5.5.68-1.el7 @anaconda 4.4 M
为依赖而移除:
postfix x86_64 2:2.10.1-9.el7 @anaconda 12 M
事务概要
=========================================================================================================================================================
移除 1 软件包 (+1 依赖软件包)
安装大小：17 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在删除 : 2:postfix-2.10.1-9.el7.x86_64 1/2
正在删除 : 1:mariadb-libs-5.5.68-1.el7.x86_64 2/2
验证中 : 1:mariadb-libs-5.5.68-1.el7.x86_64 1/2
验证中 : 2:postfix-2.10.1-9.el7.x86_64 2/2
删除:
mariadb-libs.x86_64 1:5.5.68-1.el7
作为依赖被删除:
postfix.x86_64 2:2.10.1-9.el7
完毕！
再次执行安装，成功
总结：谁发生了冲突，就卸载谁。
