[HECnet] Which DECnet interfaces support remote, unattended, booting?

[Cory Smelosky]

On Fri, 17 May 2013, Bob Armstrong wrote:


John Wilson wrote:
this is a ridiculous security risk
so that's why MOP had a magic number

Yep, even the DMR has a boot "password", which is just an 8 bit value set
by dip switches on the board, that has to match up with the MOP message.

They DMA a small program into memory

Ah, I was wondering about that, because there aren't any separate boot
ROMs on the DEUNA.   I bet the "small program" is just part of the T11 code.


And I'm assuming that this scheme didn't work on any UNIBUS VAXes - only
PDPs.


I'd assume so as well.   On a semi-related note, wasn't it not possible to netboot a UNIBUS VAX with a DEUNA?   I seem to recall that from the manual. It required an intermediate bootloader or something, right?

Bob



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