HT-11 bit bi bit

From: Megan <mbg_at_world.std.com>
Date: Fri Apr 30 06:10:14 1999

>Ok, so another clue discovered:
> 1) Typing DX1:/Z "zeros" the directory on a
> floppy.
> 2) Trying this on drive 1 leaves the floppy
> scrambled, doing it on drive 0 seems to
> work.

There may be a problem with your drive 1.

>Trying DX0:A=DX1:MONITR.SYS/O does not write the boot block

If my example showed two separate devices, that was incorrect.
I believe both input device and output device have to be the
same for this. And MONITR.SYS and DX.SYS have to exist on the
volume which you are trying to make bootable.

>A disk formatted and zeroed is not mbootable.

right...

>Since the source to FORMAT was included I thought I'd take a peek. It
>tells the controller that is embedded in the drive "format that disk."
>and it does.

Aha... and you're using the Heathkit floppies, which can format
the drives...

>What the heck is used for "delete" on RT-11? backspace doesn't work nor
>does DEL apparently.

It should be DEL (0177). What happens when you type it?

                                        Megan Gentry
                                        Former RT-11 Developer

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Received on Fri Apr 30 1999 - 06:10:14 BST

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