KROON@HGRRUG51.BITNET (Peter A. Kroon, KVI, +31-50-633618) (09/05/86)
Subj: VMS V4.3->4.4 and 780->8300 upgrade Does anyone have some experience with the following upgrade situation? We have a 780 running VMS V4.3. The 780 will be replaced by a 8300. Since the 8300 needs VMS V4.4 we have to install it. Now there are two alternatives: 1. - keep running V4.3 on the 780, - ugprade the hardware to 8300, - install a virgin VMS V4.4, - tailor the virgin VMS V4.4 to the local environment 2. - upgrade V4.3 to V4.4 while still on the 780 - upgrade the hardware to 8300 Obviously the second alternative is much easier because the need for local tailoring is absent. My problem is the following: will a VMS V4.4 system that has been created by upgrading a VAX-11/780 + VMS V4.3 to VMS V4.4 bee bootable on a 8300? The reason that I am not sure about this can best be explained by the following example: Assume that I have also installed VAX/RSX V2.1 on my V4.4 and 780. Because it is a 780 with compatibility mode the installation procedure will not include the PDP-11 instruction emulator. It is obvious that this will cause problems on the 8300 which has no compatibility mode. I have asked this question to our local DEC rep but his answer doesn't help me. He expects no problems, but agrees with our sceptisism. Thanks for any info. Peter A. Kroon. (This is the 2nd time I sent this mail. The previous one seems to be lost somewhere in the BITNET/ARPANET gateway)