[TriLUG] more DVD-burning questions

Pat Regan thehead at patshead.com
Thu Dec 15 13:35:05 EST 2005


Brian Henning wrote:
> mkisofs starts to complain around 4GB.  It simply ignores the source 
> files that large with a terse message.
> 
> Unfortunately, breaking up the large file into smaller pieces is not 
> convenient at all, as it adds several steps and creates the need for 
> more staging area.
> 

I use growisofs almost every time I burn a DVD.  It has all the
functionality of mkisofs (I think it used to be a wrapper), plus it
writes directly to disc.  It also has some intelligence built in for
adding sessions to DVD media.

You can also pipe mkisofs straight into cdrecord.

> If there's a way to get a 4-8GB single file on a DVD without using 
> iso-9660, I'm all for it--it only needs to be able to be read by the 
> same Linux system that created it.  So if there's a way to get ext3 on a 
> DVD, for example, that would work for me.
> 

There is nothing preventing you from burning an ext2 image to a DVD.
The only problem you will cause yourself is that you will be limiting
the machines that will be able to read the DVD.

I don't know how your image is being generated...  Can you pipe it
through split as it is being created?

If you want to create an ext2 image, you'll have to use dd to create an
empty file, format it, then mount it.  You can create your image
directly on the loopback drive.

 > I can see with my eyes (as opposed to "see" with a computer..) that
> there is /something/ on the disc -- I can see the big band where it 
> doesn't look the same as it did when it was blank.  It's just apparently 
> not in a valid form.
> 

dd should see something, even it if isn't valid.  I would try it in
another machine just to see.

Pat
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