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Date:      Thu, 15 Mar 2007 16:36:44 -0400
From:      Jerry McAllister <jerrymc@msu.edu>
To:        Dieter <freebsd@sopwith.solgatos.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: burncd makes disk that is unmountable
Message-ID:  <20070315203644.GA71936@gizmo.acns.msu.edu>
In-Reply-To: <200703152006.UAA28235@sopwith.solgatos.com>
References:  <200703152006.UAA28235@sopwith.solgatos.com>

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On Thu, Mar 15, 2007 at 01:06:10PM +0100, Dieter wrote:

> AMD64 running 6.0
> Drive is:
>   acd0: DVDR <HL-DT-ST DVDRAM GSA-4160B/A301> at ata0-master UDMA66
> Media is CD-RW
> 
> Burned a 6.2 disk using:
>   burncd data 6.2-RELEASE-amd64-disc1.iso fixate
> as suggested in
>   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html

I don't remember the details, but when I got to 6.1, I found that
my old burncd parameters would not work and I had to change them.

I don't remember the details, but I settled upon:
  /usr/sbin/burncd -v -f /dev/acd0 data FreeBSD62-disc1.iso fixate
which seems to work find.  Both boots and mounts.  That doesn't look
materially different from yours, but...

////jerry

> 
> Seemed to go okay.  Disk boots, but I cannot mount it:
> 
> fstab entry:
>   /dev/acd0               /cdrom          cd9660  ro,noauto       0       0
> 
> Yields:
>   g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5
> 
> Tried it with and without "fixate", neither will mount.
> 
> Other iso disks (probably burned using NetBSD) mount fine.
> UFS DVD+RW disks burned under FreeBSD using growisofs mount fine.
> 
> Given the error message, I assume that the block/sector at 32768 isn't
> getting written.
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