I wanted to update CrashPlan to the latest version. So I download the latest Linux install and what I found after attempting to install was that I needed to uninstall the existing version before installing the new one.
The following steps
Stop the CrashPlan process from running
/etc/init.d/crashplan stop
Manually delete the following directories
/usr/local/crashplan
/var/lib/crashplan
/usr/local/var/crashplan
Manually delete the following file
/etc/rc2.d/S*crashplan
Once completed I followed the steps from my previous how to install post