Back up your  Zenoss data files, as outlined in the section titled "Back Up  Zenoss Data."

Install the libraries. Use one of the following commands:

 RHEL 4

up2date libgomp libgcj liberation-fonts

 RHEL 5, CentOS 5 or CentOS 4

yum -y install libgomp libgcj liberation-fonts

Download the  Zenoss software.

Shut down your existing  Zenoss instance. Use this command:

root# service zenoss stop

Run the following command to make sure all of the  Zenoss processes have stopped. Verify that no results return from the command.

root# ps ax|grep zenoss

Clean up cache files with the following commands:

root# rm /opt/zenoss/var/*.zec
root# find /opt/zenoss/perf -name \*.pickle -exec rm -f {} \;

Install the RPM. (If you have the zenoss-core-zenpacks RPM already installed, use the --nodeps option with this command.)

root# rpm -Uvh --nodeps zenoss-Version.rpm

where Version is the current version of  Zenoss.

Start the system to complete the upgrade:

root# service zenoss start

Stop the system, and then restart zeoctl:

root# service zenoss stop
su - zenoss sh -c "/opt/zenoss/bin/zeoctl start"

Upgrade the Core ZenPacks:

# rpm -Uvh --nodeps zenoss-core-zenpacks-Version.elX.i386.rpm

where Version is the current version of  Zenoss and X is "4" or "5," depending on your OS.

Delete your browser cache. (For example, if using Firefox, press Ctrl-Shift-R to clear your cache.)