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EFS volume descriptors

To: linux@cthulhu.engr.sgi.com
Subject: EFS volume descriptors
From: Mike Shaver <shaver@netscape.com>
Date: Sat, 02 Jan 1999 13:35:08 -0500
Organization: Just Another Snake Cult
Sender: owner-linux@cthulhu.engr.sgi.com
On an EFS CDROM, there's a volume descriptor at block 0.  On an EFS
partition, there's a superblock at block 1.  I'd like my all-new code to
handle both cases, so I'm wondering what's at block 0 of an EFS
partition.  Is it something that I can reliably check to see if I'm
mounting a partition or CD?

Mike

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