How to force booting from a floppy on RT after changing NVRAM?

[moody at moody.austin.ibm.com]

In article <8207 at ncar.ucar.edu> karl at tobago.cgd.ucar.edu () writes:
>
>I stupidly changed the NVRAM in my RT to boot from who-knows-what. How do
>	I get the thing to boot from the diags diskette in the floppy
>	drive? Upon power up, or <CTL><ALT><PAUSE>, some numbers flash on
>	the LED, then it beeps and hangs with the LED readout saying 29.
>	Any clues? Please email and I will summarize.


You have managed to make your machine unusable.  I know how to get your
machine to boot from floppy but the procedure requires that you be able to
boot the VRM.  You aren't getting that far.  Your only recourse is to
disconnect the battery and re-install the VRM after letting NVRAM forget
about what you put there.  The battery is inside the front panel.  You
essentially have two problems.  One is that NVRAM won't let you boot from
diskette, and the other is that you aren't getting anything booted from the
hard disk either.  Yuk.

I would have emailed but I consider myself to be an authority on
this question.


--
James Moody				aesnet:moody at moody.austin.ibm.com
Advanced Workstations Division		vnet: MOODY at AUSVMQ
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