centos 永久禁止PackageKit后台运行

使用centos时，使用yum安装软件，老是会遇到这种提示：

Existing lock /var/run/yum.pid: another copy is running as pid 3053.
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: PackageKit
Memory : 37 M RSS ( 82 MB VSZ)
Started: Sun Jan 24 16:11:53 2010 - 14:44 ago
State : Sleeping, pid: 3053

enabled=0

centos 永久禁止PackageKit后台运行

原文：http://blog.csdn.net/xuzhina/article/details/44037585