Re: Moving a data base between differnt OS

On Wed, Apr 26, 2006 at 03:24:19PM -0500, Bruno Wolff III wrote:
> On Wed, Apr 26, 2006 at 21:33:32 +0200,
>   Holger Zwingmann <holger.zwingmann@p3-solutions.de> wrote:
> > Hi,
> >
> > I just realized that is is possible to do a (backup) copy of a database
> > by copying the "root folder" within the same OS.
>
> There are some other conditions as well. Postgres needs to be shut down when
> you do the copy. The CPU needs to be the same architecture. Postgres should
> be built with the same options (some data representations are controlled by
> config options). Potentially different compilers (used to build Postgres on
> the two systems) could cause problems as well (by changing structure layouts).

And make sure you test thoroughly... there are built-in checks to detect
any incompatabilities, but most people don't try stuff like this so
there could be cases that aren't covered.
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461