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Message-ID: <3732124F.EB730407@cityweb.de>
Date: Fri, 07 May 1999 00:06:07 +0200
From: Corinna Vinschen <corinna DOT vinschen AT cityweb DOT de>
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To: "Simmons,Bruce Q." <bqs AT mitre DOT org>, cygwin AT sourceware DOT cygnus DOT com
Subject: Re: Trying to read raw cdrom
References: <3731A48B DOT A8EB31E0 AT mitre DOT org>
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"Simmons,Bruce Q." wrote:
> 
> Corinna:
> Have been emailing with delorie about being able to read a raw cdrom
> using dd.  I am running both an NT 4.0 and a win98 system.  I can dd a
> file from the cdrom BUT not the entire cdrom starting from block 0.
> 
> Any suggestions since all other that myself and Delorie have had have
> failed.
> 
> -Bruce

Try using the patched B20.1 DLL in

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

named

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

Then, on the command line:

	mount -b //./X: /dev/cdrom

where X is the drive letter of your CD-ROM drive. Then, for example,
try:

	od -c /dev/cdrom | less

or, to read the first sector and write it into a file:

	dd if=/dev/cdrom of=cdrom.sektor0 bs=2048 count=1

The patch will be part of the upcoming B21 release.
Note: This extension will only work on NT, because 9X doesn't support
raw devices!

Hope, this helps,
Corinna


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