[转载]
1. 首先查找Mysql相关rpm
rpm -qa | grep mysql[root@hexuweb102 ~]$ rpm -qa | grep mysql#mysql-connector-odbc-3.51.12-2.2#mysql-5.0.45-7.el5#mysql-server-5.0.45-7.el5#libdbi-dbd-mysql-0.8.1a-1.2.2
2. 开始卸载
[root@hexuweb102 ~]$ rpm -e libdbi-dbd-mysql-0.8.1a-1.2.2[root@hexuweb102 ~]$ rpm -e mysql-server-5.0.45-7.el5[root@hexuweb102 ~]$ rpm -e mysql-5.0.45-7.el5#error: Failed dependencies:# libmysqlclient.so.15 is needed by (installed) perl-DBD-MySQL-3.0007-1.fc6.i386# libmysqlclient.so.15 is needed by (installed) dovecot-1.0.7-2.el5.i386# libmysqlclient.so.15 is needed by (installed) mysql-connector-odbc-3.51.12-2.2.i386# libmysqlclient.so.15(libmysqlclient_15) is needed by (installed) perl-DBD-MySQL-3.0007-1.fc6.i386# libmysqlclient.so.15(libmysqlclient_15) is needed by (installed) dovecot-1.0.7-2.el5.i386# libmysqlclient.so.15(libmysqlclient_15) is needed by (installed) mysql-connector-odbc-3.51.12-2.2.i386# libmysqlclient_r.so.15 is needed by (installed) MySQL-python-1.2.1-1.i386# libmysqlclient_r.so.15 is needed by (installed) mysql-connector-odbc-3.51.12-2.2.i386# libmysqlclient_r.so.15(libmysqlclient_15) is needed by (installed) MySQL-python-1.2.1-1.i386# libmysqlclient_r.so.15(libmysqlclient_15) is needed by (installed) mysql-connector-odbc-3.51.12-2.2.i386# mysql is needed by (installed) MySQL-python-1.2.1-1.i386
因为下面这些包依赖于 mysql 这个包，你删除了 mysql 其他包就可能不能用了。
解决方法：
1. 加上 –nodeps 可以卸载
rpm -e --nodeps mysql
2. 先卸载依赖
[root@hexuweb102 ~]$ rpm -e perl-DBD-MySQL-3.0007-1.fc6.i386[root@hexuweb102 ~]$ rpm -e dovecot-1.0.7-2.el5.i386............
2. 用yum删除 它会自动解决依赖
[root@hexuweb102 ~]yum remove mysql
建议还是用yum来删除或安装软件吧，包的依赖关系实在有些麻烦
