centos卸载自带mysql出错无法卸载解决方法

如下命令我们删除mysql提示失败

[root@cch rpm]# rpm -qa | grep -i mysql
mysql-libs-5.1.69-1.el6_4.x86_64
[root@cch rpm]# rpm -e mysql-libs-5.1.69-1.el6_4.x86_64
error: Failed dependencies:
libmysqlclient.so.16()(64bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64
libmysqlclient.so.16(libmysqlclient_16)(64bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64
mysql-libs is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64

解决办法：

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

补充:彻底删除mysql 

yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
查看是否还有mysql软件：
rpm -qa|grep mysql
有的话继续删除