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Re: bin/38171 (mount_ffs doesn't work on CDs)

The following reply was made to PR bin/38171; it has been noted by GNATS.

From: Matthew Mondor <>
Subject: Re: bin/38171 (mount_ffs doesn't work on CDs)
Date: Thu, 3 Feb 2011 19:43:44 -0500

 On Mon, 31 Jan 2011 19:10:05 +0000 (UTC)
 "Michael L. Hitch" <> wrote:
 >  the CDROM as 2048 byte blocks.  The only two ways I can think of that 
 >  would allow mounting those CDs is to either modify the cd(4) driver to 
 >  buffer the 2048 byte blocks and present them as 512 byte blocks, or to 
 >  modify ufs to do the equivalent.  The alternative is to use a CDROM drive 
 >  that can present the data as 512 blocks.
 Is using a fake disk label on a vnd layer a possible way to use that
 512-byte blocks FS?  The place I remember this idea from was from the
 CGD guide about using encrypted CDs/DVDs at:

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