I was a complete novice with the PDP-11 and so I asked for some help on the www.vintage-computer.com forums. Thanks to the help of the folks there I got the machine to boot.
This is what I did…
Downloaded the TU58 emulator from Don’s site here. This enables a PC to emulate a TU58 which is a tape drive unit that talks to the PDP using a serial port.
I downloaded a disk image for the TU58 emulator to load and present to the PDP when asked, from here.
I used Win Xp on my rather old laptop and used Hyperterm on COM1 (19200) to act as my terminal to the PDP.
I started a command prompt on Xp and then started tu58em with the options -p5 -s 9600 -r 11xxdp.dsk. This starts tu58em talking on COM5 at 9600 baud with the disk image mounted as read only.
I had COM1 connected to the console port and COM5 to the printer port.
I started the PDP, watched it go thorough its self test and the numbers 1 to 9 and when it started rattling the RX50 I pressed ctrl-C to break the boot. It asked for a command and I used…
and watched as it started up.
One point I didn’t pick up on until I saw it was that it has both DD0 and DD1 are on the same port. I thought they would be on two serial lines (SLU) and they are not
Now I’ve booted up the PDP I’ll sit down with the manuals and boot myself.