What to back up prior to upgrading?
With any upgrade we recommend a full system backup, however these are the directories we would expect to be modified by an upgrade from 5.0 to 5.5
The 5.5 upgrade will modify the following 5.0 user definable directories;
The following system files may also be modified if required;
The 5.5 upgrade/installation will also create/modify the following directories;
To rollback the upgrade, you can re-run the install script with the -u rollback option.