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Message-ID: <36F59546.7977A262@cityweb.de>
Date: Mon, 22 Mar 1999 01:56:38 +0100
From: Corinna Vinschen <corinna DOT vinschen AT cityweb DOT de>
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To: Serguei DACHIAN <Serguei DOT Dachian AT univ-lemans DOT fr>
CC: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: Reading physical disks.
References: <1 DOT 5 DOT 4 DOT 32 DOT 19990321231321 DOT 00679558 AT lola DOT univ-lemans DOT fr>
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Serguei DACHIAN wrote:
> I need to read a physiacl sector from a physical disk (say /dev/hda).
> 
> Under UNIX/POSIX the way to do it whould be just to "fopen" the "/dev/hda"
> and to "fread" from it.  Under CygWin (B20.1 on Win98) this doesn't work.
> Indeed /dev/hd* don't exist (not even visible by ls). As to dev/fd*, even if
> visible by ls, they are inacessible neither by "fopen", nor from bash prompt
> by "dd", "cp", etc.
> [...]
> So, is there at least a way to read a physiacl sector from a physical disk
> under CygWin gcc, or not???!!!  HELP, I am lost.

You will find a patched version of b20.1, supporting raw access to partitions,
hard drives and tapes on

ftp://ftp.franken.de/pub/win32/develop/gnuwin32/cygwin/porters/Vinschen_Corinna/B20

named
	cv_cygwin1.dll.README
	cv_cygwin1.dll.tar.gz

The newer snapshots of winsup (since winsup-990130, I think) contain this patch,
too. Nevertheless, you should download the forementioned README for a short
description of the features.

Regards,
Corinna

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