[rt-users] Upgrading from RT 3.6.5

[Jerrad Pierce]

Ungh, Ubuntu as a server.

Leaving that aside, simply use the package manager (something like
Synaptic in the GUI) to check where the files for the rt package are
installed.
Back those up if you have concerns about possible customizations done
to core instead of local code. Backup your database. Then:

A) Update your system to something more modern, and install the
corresponding rt package
B) Download the source tarball from Best Practical, and follow the
enclosed directions

P.S. /opt/rt3 is the default path, for some reason several
distributions like Ubuntu like to shove stuff under
/usr/local/packageName and give users longer pathnames to deal with.