15 Jun
2005
15 Jun
'05
8:24 a.m.
On Wed, 15 Jun 2005, Philipp Hachtmann wrote:
I am just getting a PDP11/23plus. The CPU is already
at home and I have
powered the machine up. Makes noise, turns fans, etc. If I start the
Congrats!
Noise is good!
machine (running indicator lit) it gives me a dollar
sign ('$') prompt
which seems to accept two character until it starts a new line.
Thats the bootstrap
ROM ("ROM BIOS") talking to you. It wants
you to tell it from what device to boot. From memory:
DL RL01/02 disks
DK RK05 disks
HK RK06/07 (perhaps HM)
DX RX01/02 diskettes
Newer ones probably also support DU (MSCP), network and various
tape controllers (TM, TS, MU) as boot devices.
Beware- afaik, only the FIRST UNIT (unit 0) is supported.
Here a few (perhaps totally stupid - but I've
never used such a toy
before) questions:
What's that?
See above. Life! :P
What can I do from there?
Yes.
Is it normal?
Very.
My machine lacks harddisk and floppy (at the moment,
they have not
arrived yet). The monitor program (@-Prompt) seems to work correctly.
Once you have
the disk stuff connected, try one of the above.
--f