Our smallish Groupwise system consists of a single machine running Groupwise 8 (upgraded from 7) on SLES 9. I'm aware that this configuration isn't officially supported and would like to get the OS up-to-date.

The preferred and safest method seems to be setting up a new system on new hardware and migrating, but I would like to end up with the system back on the original hardware. What is the recommended procedure for accomplishing this?

Is a "double"-migration through a temporary machine best, or can I safely upgrade the OS in-place (with appropriate backups, of course)?

Thanks for any guidance.