Hi folks,
I have found the Motorola 68764 EPROM to make new boot ROMs for my
PDP11/23+.
Everybody seems to discuss the use of KDF11-B3, KDF11-BG etc. and MSCP
devices.
But what avout RK06/07?
In my system I have an Emulex SMD controller which emulates RK06 (with
other disks also RK07) drives, an RX02 and a SCSI controller doing the
DU MSCP thing. Everything works fine.
Only booting is problematic. I have to choose what I want to do by
configuring my cards:
* For DU, I have to enable auto boot on controller and CPU, nasty thing.
Makes booting SCSI possible - but only that.
* For RK (DM), I have to use the controller's ROM and to disable the LTC
on the CPU. Don't know if there's a line clock on the controller or how
to enable it. In that configuration I can boot DM and DY - but no DU
* With original PROM I can only boot DY on my system.
I want an original PROM image which does all the three. Does that exist?
If yes, please let me know. It would be very nice to have a machine with
the possibility to choose between all available boot devices on start
up. With the nice BOOT> prompt etc.
Thank you very much,
Philipp :-)
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