I updated yum 2.4 to yum 2.9 from ATRPMS by using yum as below.
You should *not* do that. As you already realized, it actually breaks things.
But, Since I updated yum to 2.9, All those are gone.
Now I want to know that how to enable, restart yum.
And also I want ot know should I write a crontab for my daily updtaes?
Help needed.
Probably the best guess is: - get a copy of the current yum rpm for CentOS 4 - uninstall the atrpms yum - install the CentOS yum
After you have done that look into the protectbase plugin for yum[1]. It can be used to prevent a 3rd party repository (like atrpms) from updating the CentOS base packages, as this is usually not a good idea.
An example how it can be enabled for RPMForge[2] is also avaiable in the Wiki[3].
Hope that helps
Andreas
[1] http://wiki.centos.org/PackageManagement/Yum/ProtectBase [2] http://wiki.centos.org/Repositories/RPMForge [3] http://wiki.centos.org/