Both the recovery catalog and the source database were on solaris. I tried the 8.1.7 database with 8.1.7.0 and 8.1.7.2.

The catalog was an 8.1.7 catalog on a 9.0.1.2 database. Since everything was owned by rman817, I shouldn't have a problem.

I have been looking for that 8.1.7.3 patchset, but haven't found it on the ftp site or metalink. I hope it comes out soon.