upgrade database to 8.1 - 2GB file limit (pg_dump)

I'm upgrading from 8.0 to 8.1 on RedHat 2.6 kernel. I'm hitting the file
max limit of 2 GB file when I pg_dump my database (even if I compress
the dump file as it gets generated using a pipe). pg_dump is the
recommendation stated in the INSTALL doc to upgrade; what would be the
next recommendation to upgrade the database?  Can I use the -Fc option
in pg_dump instead of the plain-text (default)  ?  Thanks in advance.

---

   Husam Tomeh
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