UDF and DVD's

Jeremy Chadwick freebsd at jdc.parodius.com
Thu May 19 09:27:45 UTC 2011

On Thu, May 19, 2011 at 12:36:02AM -0400, grarpamp wrote:
> Greetings... :)
> The first filesystem DVD... other than a movie DVD (DVD-VIDEO?),
> and the FreeBSD make release DVD's (iso9660)... that I've ever tried
> to mount, well... don't. It is:
>  Windows 7 Ultimate with Service Pack 1 (x64) - DVD (English) 5/12/2011
> You can find the SHA-1 hash here:
>  http://msdn.microsoft.com/en-us/subscriptions/downloads/default.aspx
> and a sample image, if needed for reference purposes, via any search
> engine.
> Anyways, after a little reasearch, does FreeBSD not, in fact, support
> this UDF version? (I don't yet know how to supply the version of
> this image for you?)
> Can the FreeBSD team implement it? Perhaps by porting from NetBSD
> 5.1's seemingly near complete implementation?
>  http://en.wikipedia.org/wiki/Universal_Disk_Format
>  http://www.osta.org/specs/index.htm
> As perhaps even a GSOC or Foundation project? Because reading retail
> optical filesystem formats would seem to be a rather expected
> capability?
> I'm guessing the current state within FreeBSD means that I can
> neither read, nor create, or write, readable (compatible) images
> at this, or any given, UDF level?
> As I've no other DVD's to test with... what UDF versions are most
> DVD data ROM's published in?
> Is this a blocker for FreeBSD?
> For me, at least, minimally, that seems to be the case... as I now
> have no way to rip, mount and add the files to this DVD that I would
> like to add. Except to use Windows, which I consider to be unreliable
> at best.
> Thoughts? Thanks :)

Thoughts: please provide commands, full output, etc. that show how
you're trying to mount the disc, as well as relevant /dev entries
pertaining to your DVD drive.  dmesg might also be helpful.  And I
assume you have looked at mount_udf(8)?

| Jeremy Chadwick                                   jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.               PGP 4BD6C0CB |

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