What is SLES?
Offline installations are (theoretically at least, I doubt many folks have tried) possible.
Some of those instructions will need to be amended / extended.
Off the top of my head, at least two things will need to change:
- The module descriptors cannot be pulled from Okapi, they will need to be copied to that system and registered with Okapi manually
- To use the docker based Okapi deployment, the docker images will need copying to that machine (I don’t know enough about Docker or SLES to know if that’s practically possible)