"Jeffrey W. Baker" <jwbaker@acm.org> writes:
> I moved the database from a 32-bit arch to a 64-bit arch. All I did was
> shutdown a 7.4.1 database, shutdown the machine, swap the storage onto
> the 64-bit machine running 7.4.5, and try to restart. No dice.
You're fortunate that it died that quickly, rather than corrupting your
data in weird and wonderful ways. Postgres has never been designed to
have architecture-independent data files.
regards, tom lane