You might need to disable package updates from ULN. For example,
if you deleted your system from ULN, you would edit the
/etc/yum/pluginconf.d/rhnplugin.conf file and
change the value of enabled flag from
1 to 0 in the
[main] section, as shown in the following
example:
[main] enabled = 0 gpgcheck = 1
To disable updates for particular packages, add an
exclude statement to the
[main] section of the
/etc/yum.conf file. For example, to exclude
updates for VirtualBox and
kernel:
exclude=VirtualBox* kernel*
Excluding certain packages from being updated can cause dependency errors for other packages. Your system could also become vulnerable to security-related issues if you do not install the latest updates.