Re: DVD 1 of squeeze 6.0.1.a not OK?

[Rui Ribeiro <rui.ribeiro@iscte.pt>]

I do confirm that after removing the isohybrid of the image, I am able to mount it.

Rui

On Apr 13, 2011, at 3:10 PM, Steve McIntyre wrote:

On Wed, Apr 13, 2011 at 03:03:01PM +0100, Rui Ribeiro wrote:

I confirm that SPARC image is mounting fine thanks.

Bugger. Looks like OSX is demanding things of the image that are just
not reasonable then. *sigh*

If you can double-check the test that Thomas suggested too, that would
confirm this:

 dd if=/dev/zero bs=2K count=16 >test_image.iso
 dd if=/dvdbuffer/debian-6.0.1a-i386-DVD-1.iso bs=2K skip=16 >>test_image.iso

--
Steve McIntyre, Cambridge, UK.                                steve@einval.com
"Since phone messaging became popular, the young generation has lost the
ability to read or write anything that is longer than one hundred and sixty
characters."  -- Ignatios Souvatzis

Subject: Re: DVD 1 of squeeze 6.0.1.a not OK?

From: Thomas Schmitt <scdbackup@gmx.net>

Date: April 13, 2011 2:43:57 PM GMT+01:00

To: debian-cd@lists.debian.org

Cc: Rui Ribeiro <rui.ribeiro@iscte.pt>

Hi,

The error is the following: "The following disk image could not be

opened: debian-6.0.1a-i386-DVD-1.iso - no mountable file systems"

We're using xorriso to generate hybrid CD

and DVD images for i386, and that may be what's throwing OSX;

One may remove all isohybrid aspects by zeroing the first 32 kB
of the image.
E.g. by writing 32 kB of zeros and appending from the ISO image
everything above 32 kB:

 dd if=/dev/zero bs=2K count=16 >test_image.iso
 dd if=/dvdbuffer/debian-6.0.1a-i386-DVD-1.iso bs=2K skip=16 >>test_image.iso

(which lasts quite long).

The resulting file test_image.iso could then be tried for mounting.


Have a nice day :)

Thomas