*BSD News Article 38927


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From: salb@PROBLEM_WITH_INEWS_DOMAIN_FILE (Bernd Salbrechter)
Subject: Re: Fujitsu Magneto-Optical disklabel parameters
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Message-ID: <1994Dec2.104110.15497@siemens.co.at>
Date: Fri, 2 Dec 1994 10:41:10 GMT
References: <1994Dec1.195833.237@krypton.demon.co.uk>
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Neil Dunbar (neil@krypton.demon.co.uk) wrote:
: Hi all,
: 
: Has anyone got a disklabel for a Fujistu M2511A Magneto Optical Drive?
: I've tried to guess the parameters (via fdisk and others), but BSD's
: disklabel still seems a bit beyond me in this case.

You have to figure out the size of the disk you use.
I do the following for this:
  1. Disklabe it with somthing more than I expect.
  2. run dd -if=<rwa block device of the MO> -skip=<near to the real end>
       -block_size=512 -of=/dev/null
     # dd will say how many records are transfered and you can calculate
     # the right size
  3. Disklabe it with the right size.
  4. run newfs or somthing.

Works fine.

NB. I use an IBM Drive, but that shouldn't matter. I don't have the exact
description handy, so this is what I remeber about the hack.
: 
: It's just a standard SCSI device, and Linux and UnixWare (blech!) accept
: the beastie just fine, so I can't believe my shiny new FreeBSD 2.0 doesn't
: like it.
: 
: Cheers,
: 
: Neil
: 
: -- 
: +-----------------------------------+-----------------------------------------+
: | Neil Dunbar                       | Internet: neil@krypton.demon.co.uk      |
: | VoxMail: +44 (0)31 346 8617       | Compu$erve: 100066,603                  |
: |                                   | "I made the blue car go away" -- JDM    |
--salb