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当在CentOS 6.2执行yum update时，报错如下：
Setting up Update Process
Resolving Dependencies
–> Running transaction check
—> Package openmpi.x86_64 0:1.5.3-3.el6 will be updated
–> Processing Dependency: libotf.so.0()(64bit) for package: 1:emacs-23.1-21.el6_2.3.x86_64
Package openmpi-psm is obsoleted by openmpi, but obsoleting package does not provide for requirements
—> Package openmpi.x86_64 0:1.5.4-1.el6 will be an update
–> Finished Dependency Resolution
Error: Package: 1:emacs-23.1-21.el6_2.3.x86_64 (@updates)
Requires: libotf.so.0()(64bit)
Removing: openmpi-1.5.3-3.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libotf.so.0()(64bit)
Updated By: openmpi-1.5.4-1.el6.x86_64 (base)
Not found
Available: libotf-0.9.9-3.1.el6.x86_64 (base)
libotf.so.0()(64bit)
Available: openmpi-psm-1.5.3-3.el6.x86_64 (base)
libotf.so.0()(64bit)
You could try using –skip-broken to work around the problem
You could try running: rpm -Va –nofiles –nodigest
事实上是openmpi的错误，解决办法：
yum install libotf
更多CentOS相关信息见CentOS 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=14
