32 -> 64 bit migration, data files

Migrating from 32bit to 64bit, is it possible to do a binary backup and restore to 64bit with out any issues? I guess my question is are the datafiles bit-agnostic ? I did not find anything in the mysql documentation.

Bumping, I’m really interested in this, too.

AFAIK, storage has no correlation with CPU range. You could use the same filesystems with 64-bit or 32-bit systems, provided that your apps use the correct libraries.