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Article #58318

Re: HELP! computer won't boot off floppy

#58318
From: John Paul Morrison
Date: Sat, 29 Jun 1996 00:00
39 lines
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In article <4r275j$8ie@leonard.anu.edu.au>,
Paul Gortmaker <gpg109@leonard.anu.edu.au> wrote:
>simc@mundil.cs.mu.OZ.AU (Simon Chin) writes:
>
>>Tonight I took out my old 200MB hard drive and put in
>>an 850 MB hard drive, and I also took out
>>my 1.2MB floppy drive. I left my 1.44MB drive in.
>
>>I tried to boot linux off my linux boot disk.
>>The first bit loaded ok, and then it prompted
>>for the root disk. I put it in and then I got
>>this error message 
>>"perpendicular drive not supported FDC"
>
>Sounds like you are using one of those goofy BIOS hacks^H^H^H^H^H features
>that allows you to "exchange" A: and B: drives. Well don't. They are just
>that -- a hack to the BIOS floppy INT service routine.

Some Pentium CMOS/BIOSs have a BIOS part and a cable switch part. The
first one just fools the bios in software, but the second one really
switches the cable. This should be easier than opening up the case.

>
>The BIOS loads the boot disk, which is why that works, but the loading of 
>the rootdisk is actually done by the linux kernel floppy driver, and it
>goes looking for /dev/fd0 which physically doesn't exist. Hence the error
>message (albeit a misleading one).
>
>So pop the lid again and put your 1.44 on the end of the cable with the 
>twists in the middle of the ribbon.
>
>Paul.


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Message-ID: <1996Jun29.052525.1339@bogomips.com>
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References: <4r0t01$56j@mulga.cs.mu.OZ.AU> <4r275j$8ie@leonard.anu.edu.au>

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From: jmorriso@bogomips.com (John Paul Morrison)
Subject: Re: HELP! computer won't boot off floppy
Date: 1996/06/29
Message-ID: <1996Jun29.052525.1339@bogomips.com>
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references: <4r0t01$56j@mulga.cs.mu.OZ.AU> <4r275j$8ie@leonard.anu.edu.au>
organization: BogoMIPS Research Labs
newsgroups: aus.computers.linux,comp.os.linux.setup