Disable monitoring for the managed server. Disabling monitoring prevents the fault notifications if the server reboots after an OS update uninstallation. See To Disable Monitoring for a Managed Server or a Managed Server Group in Sun N1 System Manager 1.3 Discovery and Administration Guide for details.
Ensure that the OS monitoring feature is supported on the managed server. This action provides the necessary support to uninstall OS updates. See To Add the OS Monitoring Feature in Sun N1 System Manager 1.3 Discovery and Administration Guide for details.
Log in to the N1 System Manager.
Uninstall an OS update from a managed server.
N1-ok> unload server server[,server...] update update
If the user-specified update name is not found, the command tries to uninstall an OS update with a matching file name. The show update command enables you to list an OS update's corresponding file name.
If you cannot uninstall an OS update that was installed with an admin file, check that the package file name matches the name of the package. If the name is not the same, rename the admin file in the managed server's /tmp directory to match the name of the package and try the unload command again. If the package still exists, remove it from the managed server by using pkgrm.
Refer to OS Update Uninstallation Failures in Sun N1 System Manager 1.3 Troubleshooting Guide for solutions to common problems.