> on 11/23/00 2:51 PM, John Saroglou at johny@yorku.ca wrote something
> like:
> 
> > 
> > My current PROM version (3MIN, 5000/133) is 'KN02-BA  DEC     
> > V5.7j' doesn't support TFTP boot.  I'd like to upgrade/downgrade to
> > a PROM version that has no known problems with TFTP booting.
> > 
> > Can anyone direct me to where I can find such version?
> 
>     Not possible. I've been told that PROM upgrades are FRU's. (Field
> Replacement Units) This means they are not saleable or available from
> anyone other than DEC field service, which no longer exists. So unless
> you want to pay $$$ for Compaq to come out and look at your machine,
> you're probably out of luck; with the exception of finding another
> 3MIN board with the right PROM and stealing it out.
> 

Is the PROM somehow read protected? Otherwise it would be easy 
just to take out a PROM from a DS with a working version and dump 
the contents to a file, with an EPROM programmer. With a 
programmer you could make as many copies of the PROM as you 
want (unless it's impossible to find compatible  programmable 
EPROMs on the market). The procedure is really simple.

Joachim Buss