Dell PowerEdge Virtual Media

Scott Mitchell scott+lists.freebsd at fishballoon.org
Thu Feb 18 22:25:53 UTC 2010


On Thursday 18 February 2010 21:54:16 Gary Palmer wrote:
> Hi,
>
> I'm no expert at this code, but it might be interesting to see the
> results of
>
> cdcontrol -v info
>
> The code in mount_cd9660 in 7.x reads the CD/DVD table of contents
> to figure out where the data segment starts.  The only thing I can
> guess is that the TOC data is getting munged somehow.
>
> Regards,
>
> Gary

Hi Gary,

Good call!

On the R710 (running 8.0) with the FreeBSD/amd64 8.0-R DVD image in the 
virtual drive:

(501) ~ $ sudo cdcontrol -v info
Password:
Starting track = 1, ending track = 1, TOC size = 4608 bytes
track     start  duration   block  length   type
-------------------------------------------------
    1   0:08.62  144:07.29     512    -662   data
    0   0:00.00         -    -150       -      -

On a different machine (running 6.4) with a real DVD burned from the same 
image in the drive:

(501) ~ $ sudo cdcontrol -v info
Password:
Starting track = 1, ending track = 1, TOC size = 18 bytes
track     start  duration   block  length   type
-------------------------------------------------
    1   0:02.00  235:08.05       0  1058105   data
  170  235:10.05         -  1058105       -      -

Something definitely not right there.

I can try with the same DVD in the internal drive on the R710 tomorrow, just 
in case that makes any difference.

Best regards,

	Scott


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