duplicting a CD

[adler-wRvlPVLobi1/31tCrMuHxg at public.gmane.org (Stephen Adler)]

I just did it and it worked fine for me....

the cd (not dvd) was mounted on /dev/hda on my system. So here is what I 
did.

Logged in as root.
umount /dev/hda
dd if=/dev/hda of=CopyOfCD.iso bs=1024
scp CopyOfCD.iso adler at localhost:Desktop/
eject /dev/hda

Next I took a fresh CD read to be burned and put it into my CD/DVD writer.
 From my desktop I right clicked on the CopyOfCD.iso file and clicked on 
the burn to cd menu item. I then let the system burn the cd from the 
.iso file I created.

I was able to boot off the CD when it was created.

I'm running red hat enterprise linux 5. But I'm sure the same procedure 
will work with any of the later fedora core systems.

Cheers. Steve.

Jack wrote:
> Is there a document or some place I can Read The Fine Manual or just
> a quick explaination about the
> CD or DVD architecture that will explain why this doesn't work to me?
>
> I know that and have experienced it, I just don't know why.
>
> Also, if you want it to be bootable, what else do you need to do if the
> ISO came from a bootable media?
>
>   
>> <> ... Jack
>>     
>
>
>
> On Wed, Sep 2, 2009 at 1:38 PM, Dan Ritter<dsr-mzpnVDyJpH4k7aNtvndDlA at public.gmane.org> wrote:
>   
>> On Wed, Sep 02, 2009 at 02:30:51PM -0400, Stephen Adler wrote:
>>     
>>> Guys,
>>>
>>> I just ran across an interesting problem I never really thought about. I
>>> need to duplicate a bootable dvd. Do I do this using the following
>>> command...
>>>
>>> dd if=/dev/sdd of=/tmpspace/dvdiwanttodup.iso
>>>
>>> then burn the .iso to the new dvd?
>>>       
>> Yes.
>>
>>     
>>> I have a feeling mounting the DVD, then taring up its contents isn't
>>> going to really work.
>>>       
>> That will get the contents, but not produce a bootable disc.
>>
>> -dsr-
>>
>> --
>> http://tao.merseine.nu/~dsr/eula.html is hereby incorporated by reference.
>> You can't defend freedom by getting rid of it.
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