打算通过yum安装软件，发展之前有软件残骸。使用yum remove也无效，使用rpm -e也无法删除这个软件包（这个软件包已经损坏）。
错误信息：
Running Transaction
Error in PREUN scriptlet in rpm package hadoop-hdfs-namenode
hadoop-hdfs-namenode-2.0.0+1475-1.cdh4.4.0.p0.23.el6.x86_64 was supposed to be removed but is not!
Failed:
hadoop-hdfs-namenode.x86_64 0:2.0.0+1475-1.cdh4.4.0.p0.23.el6
Complete!
Error in PREUN scriptlet in rpm package hadoop-hdfs-namenode
hadoop-hdfs-namenode-2.0.0+1475-1.cdh4.4.0.p0.23.el6.x86_64 was supposed to be removed but is not!
Failed:
hadoop-hdfs-namenode.x86_64 0:2.0.0+1475-1.cdh4.4.0.p0.23.el6
Complete!
解决：
yum --setopt=tsflags=noscripts remove 包名称
删除rpm包的时候不调用卸载脚本：
sudo rpm -e hadoop-hdfs-namenode.x86_64 0:2.0.0+1475-1.cdh4.4.0.p0.23.el6 --noscripts
PS. 我使用" yum --setopt=tsflags=noscripts remove hadoop-hdfs-namenode.x86_64 0:2.0.0+1475-1.cdh4.4.0.p0.23.el6" 这个命令卸载没有生效。
--end
(未生效)
yum --setopt=tsflags=noscripts remove hadoop-hdfs-namenode.x86_64 0:2.0.0+1475-1.cdh4.4.0.p0.23.el6