yum install mysql-libs 因為之前安裝了mysql5.5,40,報錯如下：
Transaction Check Error:
file /usr/share/mysql/charsets/Index.xml from install of mysql-libs-5.1.73-5.el6_7.1.x86_64 conflicts with file from package MySQL-server-5.5.40-1.rhel5.x86_64
解決辦法：
wget http://cdn.mysql.com/archives/mysql-5.5/MySQL-shared-5.5.40-1.el6.x86_64.rpm
rpm -ivh MySQL-shared-5.5.40-1.el6.x86_64.rpm
wget http://cdn.mysql.com/archives/mysql-5.5/MySQL-shared-compat-5.5.40-1.el6.x86_64.rpm
rpm -ivh MySQL-shared-5.5.40-1.el6.x86_64.rpm ![資料遷移方法資料遷移原則資料遷移之雙寫方案資料遷移之級聯同步方案[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)