Is it possible to install an earlier revision of the base
operating system from a more recent DVD?

Specifically, I have a zx6000 that was last officially
supported by the May 2005 release of HP-UX 11.23, while the
only version of the DVD I can get from HP is the December
2007 revision. Is it simply a matter of modifying the DVD
so that the 12/2007 QPKBASE and HWENABLE patches are not
installed? Or is the December 2007 DVD substantially more
than the base operating environment with the patches
included?

--
Dan