Minix

Allison ajp166 at bellatlantic.net
Thu Nov 17 14:42:26 CST 2005


>
>Subject: Re: Minix
>   From: Gordon JC Pearce <gordonjcp at gjcp.net>
>   Date: Thu, 17 Nov 2005 20:15:33 +0000
>     To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>Got an RX50, not got any (known-good) RX50 media.  I seem to recall that 
>normal 5.25" DD floppies are a no-no, but I can't remember why.

The regular brown media works fine, the problem is 10 512byte sectors per
track and 80 tracks.  Not a normal PC format, though it can do it. John Wilsons
putr does it if memory is working today.  If you format them on an -11 you 
need XXDP as RT-11 doesnt.

If the uVAX2000 has RX50 or RX33 it can format floppies as well as
RQDX3 Compatable hard disks.  All from the console test software
So a minimal uVAX2000 (without any OS) can be a useful applience.
I keep one around with longer cables for that reason.

>> The hard disk is st412(10mb), ST225(20mb), st250(40mb), Quantum D540 (30mb).
>> However they must be formatted with either xxdp or deom a system that can
>> such as uVAX2000 (for RQDX3 only). 
>
>Yes, I've been reading up on this.  Apparently you can modify XXDP to 
>handle different formats, too.  I *think* I might have an ST225.

St225 is RD31, a standard format.


Allison


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