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Disable PackageKit Update Check after Yum

Ever get an error message like the following when you use yum to install an RPM package or a group of RPM packages, and then, within a minute or two, attempt to use yum to install another RPM package? # yum groupinstall “Development Tools” Loaded plugins: langpacks, presto, refresh-packagekit Existing lock /var/run/yum.pid: another copy is running as pid 1651. Another app is currently holding the yum lock; waiting for it to exit… The other application is: PackageKit Memory : 114 M RSS (506 MB VSZ) Started: Wed Oct 26 15:11:42 2011 – 00:10 ago State : Running, pid: 1651 Another