PDP-11/73 booting!

[Allison]

>
>Subject: PDP-11/73 booting!
>   From: David Betz <dbetz at xlisper.mv.com>
>   Date: Tue, 15 Nov 2005 19:56:03 -0500
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>I got my PDP-11/73 booting by connecting an RX02 drive to the system  
>and using an RT-11 boot floppy. I've convinced myself that the 1.5mb  
>of memory (two M8059s and a third party card) works and that the  
>KDJ11-A CPU is working as well as the multi-function boot card  
>(M8047) and the RX02 drive and controller (M8029).
>
>Unfortunately, I still can't access the RL01 drive. RT-11 sees the  
>controller card but if I type "DIR RL0:", there is no indication that  

Ah thats...

dir DL0:  

the RL02 is accessed by the DL: driver. is there a DL.sys on the disk?

>the drive is even accessed. The disk seems to spin up and the ready  
>light comes on on the drive but I don't seem to be able to access the  
>drive from RT-11. I've also tried using a scratch pack and typing  
>"INIT DL0:" but that doesn't work either. Does anyone have any idea  
>what might cause this kind of behavior? Also, can anyone make me a  
>bootable RX02 disk with the RL01 diagnostics on it? I can supply the  
>blank disk?

Assuming the interrupt grant is good (no empty slots between the cpu and 
the RLV controller.  the cables are good and connected correctly. No fault
light and When the load bitton is in you get spin up and a white load lamp.

It should work. 

Allison