Thank you SO much for the advice. I am migrating from .LRN 2.0.3 to 2.1.1 and from ACS 5.0.4 to 5.1.4. Upgrade and move at the same time.
I followed your instructions, except for moving the entire directory tree where .LRN resides. Managed to make a dump and create a new db with the dumped data. I ran into expected errors in the compatibility of the two databases. Missing keys, etc.
I suppose that now I should edit the old db dump to make it compatible with the new structures.
Thanks again for the very quick response