[root@monitor ~]# rpm -e zenoss-core-zenpacks-2.5.1.el5.x86_64.rpm
error: package zenoss-core-zenpacks-2.5.1.el5.x86_64.rpm is not installed
[root@monitor ~]# rpm -hiv zenoss-core-zenpacks-2.5.1.el5.x86_64.rpm
warning: zenoss-core-zenpacks-2.5.1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID aa5a1ad7
Preparing...                ########################################### [100%]
	package zenoss-core-zenpacks-2.5.1-440.x86_64 is already installed