Lost oid restoring dump with blobs

Hi!

I've a restoring problem with a pg-db contains images stored in blobs: I want
to copy the whole content of the db with a dump-file from a solaris
to a linux server (both postgresql 7.1.2). While inserting the dump
(created by pg_dump) pg_restore changes all "oids" of the blobs into new
ones. So I've no access to the blobs anymore because the old "oids" stored
in the tables. Is there a chance to tell pg_restore: "leave the original
oids untouched"?

I've alredy tried tar or archiver format (-Ft and -Fc), -o and -N in
many combination without success. Thanx for any advice!
cu,
Volkmar

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