Best way to sync possibly corrupted data?

HI,

We have an issue with possibly corrupt data in our postgresql server. Errors like:

ERROR: index "photos_p00_n2" contains unexpected zero page at block 0
ERROR: invalid page header in block 12707 of relation pg_tblspc/5020557/PG_9.1_201105231/16393/9014673

Thanks to all the suggestions from this list. We are in the process of moving our database out to a different server, and we'll then set zero_dameged_pages to on, run a full vacuum and reindex.

The question I have is – what is the best method to transfer the data over to ensure we don't copy over bad/corrupt data? I would think a filesystem based copy (rsync, etc) should be avoided, and a pg_dump with a new initdb is best?

Thanks,
Karthik