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This article was posted to the Usenet group alt.hackers in 1995; any technical information is probably outdated.

Re: Lucky hack


Article: 7429 of alt.hackers
Newsgroups: alt.hackers
From: ncherry@cbnews.cb.att.com (neil j.cherry)
Subject: Re: Lucky hack
Message-ID: D4BG8z.FxC@nntpa.cb.att.com
Keywords: nope, nope, nope, and nope
Sender: news@nntpa.cb.att.com (Netnews Administration)
Nntp-Posting-Host: cbnews.cb.att.com
Organization: AT&T
Distribution: na
Date: Mon, 20 Feb 1995 20:43:46 GMT
Approved: Gimix Ghost
Lines: 29
Status: RO

In article <3i59pk$mf1@news.cais.com>, Tommy Usher
<hacker@ns.secis.com> wrote:
>In article <3i2q74$aeg@access3.digex.net>,
>Michael Lea <mikelea@access.digex.net> wrote:
>>ObLuckyHack:  The folks in the library at the school I work for wanted
>>their floppy drives switched so the 3.5" drive was a: and the
5.25" drive
>>was b:.
>
>Uh, this may seem a dumb question, but.......why didn't you just change the
>settings in the CMOS?

I didn't post the original message, this is just a point of reference. Some
machines (earlier ones) didn't have that option in their BIOS. Ah the good
old days, when floppies were all we had! ( ;-+ )Which brings me to the....

ObHack:
I have a number of 6809 OS9 Level I systems which I wanted to get working,
well I had a number of drives I could use so I gathered them up and finally
got 2 360's (5 1/4), a 720 (5 1/4), and a 720 (3 1/2). While writing the
device descriptor, I found that the 3 1/2 could handle 100 ms access. Problem
was the 1771 didn't support 5 1/4's or 3 1/2's at 100 ms. But the 8" drive
would so I lied and told the OS that the 3 1/2 was an 8" drive. The only
problem discovered was that it wouldn't format if the OS thought it was
an 8"
I then just loaded a device descriptor that told the OS that the 3 1/2 was
a 3 1/2 but was under another name. I could now read/write/format the drive
as I needed.

Hey anyone out ever multiplex the drives to get 16 on a cable?

Neil Cherry



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