>When I try using a pair of Teac floppies I've converted to RX33's using
>information I found on Sunsite I'm not really sure it tries to access
>them. How do you cable RX33's? I set them to Drive 0 and 1, as the docs
>said, and then used a Y-splitter for the power with a standard PC floppy
>cable (do I need one without the twist?). Can you use RX50 floppies to
>boot a system with RX33 drives?
Yes. In fact, the RT-11 distribution on 5.25" floppies is RX50
compatible, which also works on RX33. If the disk is formatted
by an RX33, then it will only work on an RX33, though (at least
when using the RT-11 FORMAT command).
>Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with
>both the Boot disk from my RX50 distribution set, and a RX50 boot disk
>that I made using PUTR. I've a sinking feeling that having two disk
>controllers is confusing RT-11.
Since you're using the distribution kit, the answer is no. The address
which the distribution handler (a single-port handler) expects is the
primary address, 17772150. Even if you were able to get the boot code
to read the boot block into memory, the first time the driver gets
control, it will try the default primary address and fail.
>Is it possible to create a Bootable TK50 with RT-11 that can be used to
>do the install?
Even when I worked in the RT development group, I avoided the attempt
at making bootable magtapes... But the answer is, yes... you could
make a bootable magtape (TK50). But you need to boot an RT system to
do so, so we're back to a chicken and egg problem...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '_at_' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL:
http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Received on Wed Oct 14 1998 - 17:55:51 BST