【急】yum安装报错

用yum安装postfix时报错，请教如何处理？以下是报错信息...
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
EMOS                                                     |  951 B     00:00     
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package postfix.i386 2:2.6.2-4hzq set to be updated
--> Processing Dependency: libmysqlclient.so.14(libmysqlclient_14) for package: postfix
--> Processing Dependency: libmysqlclient.so.14 for package: postfix
--> Finished Dependency Resolution
2:postfix-2.6.2-4hzq.i386 from EMOS has depsolving problems
  --> Missing Dependency: libmysqlclient.so.14(libmysqlclient_14) is needed by package 2:postfix-2.6.2-4hzq.i386 (EMOS)
2:postfix-2.6.2-4hzq.i386 from EMOS has depsolving problems
  --> Missing Dependency: libmysqlclient.so.14 is needed by package 2:postfix-2.6.2-4hzq.i386 (EMOS)
Error: Missing Dependency: libmysqlclient.so.14 is needed by package 2:postfix-2.6.2-4hzq.i386 (EMOS)
Error: Missing Dependency: libmysqlclient.so.14(libmysqlclient_14) is needed by package 2:postfix-2.6.2-4hzq.i386 (EMOS)
You could try using --skip-broken to work around the problem
You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest
The program package-cleanup is found in the yum-utils package.

你确定EMOS光盘做成本地yum仓库了...？

解决了EMOS镜像文件错了，我用的是CentOS5.4，所以应该用EMOS1.5.iso。