從新安裝mysql

刪除mysql

rpm -qa|grep -i mysql

刪除mysql關聯包

rpm -e --nodeps mysql-libs-5.1.69-1.el6_4.x86_64

rpm -e --nodeps mysql-***

yum install mysql-server

啓動mysql

service mysqld start

servicemysqldstart報錯

09051713:34:15[ERROR]Can'topenthemysql.plugintable.Pleaserunmysql_upgradetocreateit.

09051713:34:15[ERROR]Fatalerror:Can'topenandlockprivilegetables:Table'mysql.host'doesn'texist

09051713:34:15mysqld_safemysqldfrompidfile/usr/local/mysql/var/mail.bmitwap.com.pidended

09051713:38:35mysqld_safeStartingmysqlddaemonwithdatabasesfrom/usr/local/mysql/var

解決辦法在運行初始化權限表的時候使用增長參數--datadir，命令格式爲：

cd /var/lib/mysql

mysql_install_db --user=mysql --datadir=/usr/local/mysql/var