yum --showduplicates

planet.centos.org提到的真挺好用的,如果最新版本有问题,可以这样通过查询历史版本,直接安装没有问题的老版本:
 [simonsun@magic ~]$ sudo yum --showduplicates list audacity
Loaded plugins: aliases, allowdowngrade, changelog,
              : downloadonly, fastestmirror, filter-data,
              : kernel-module, keys, kmod, list-data, merge-
              : conf, priorities, protect-packages,
              : protectbase, refresh-updatesd, security,
              : tmprepo, tsflags, upgrade-helper, verify,
              : versionlock
Loading mirror speeds from cached hostfile
 * addons: centos.cs.nctu.edu.tw
 * rpmforge: apt.sw.be
 * extras: centos.mirror.cdnetworks.com
 * updates: centos.mirror.cdnetworks.com
 * base: centos.mirror.cdnetworks.com
 * freshrpms: ayo.ie.freshrpms.net
Reading version lock configuration
0 packages excluded due to repository protections
Installed Packages
audacity.i386           1.3.4-2.el5.rf             installed
Available Packages
audacity.i386           1.3.0b-1.el5.rf            rpmforge
audacity.i386           1.3.4-1.el5.rf             rpmforge

[simonsun@magic music]$ sudo yum --showduplicates list kernel
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, filter-data, keys, kmod, list-data, priorities, protect-packages,
              : protectbase, security, tmprepo, verify, versionlock
Loading mirror speeds from cached hostfile
 * addons: ftp.hostrino.com
 * base: ftp.hostrino.com
 * extras: ftp.hostrino.com
 * freshrpms: ayo.ie.freshrpms.net
 * rpmforge: ftp-stud.fht-esslingen.de
 * updates: ftp.hostrino.com
0 packages excluded due to repository protections
Reading version lock configuration
Installed Packages
kernel.i686                    2.6.18-164.10.1.el5              installed
Available Packages
kernel.i686                              2.6.18-164.el5                      base    
kernel.i686                           2.6.18-164.2.1.el5                       updates 
kernel.i686                                2.6.18-164.6.1.el5                            updates 
kernel.i686                             2.6.18-164.9.1.el5                                 updates 
kernel.i686                                 2.6.18-164.10.1.el5                            updates

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