create .iso images?

[Thomas Kaiser]

unmount it first, before you use dd and try it again....

Thomas

Ed Fletcher wrote:
> listas at enelserver.com wrote:
> 
>>> I want to create some .iso images from cd's I have, any idea how thats
>>> done in ubuntu?
>>
>> dd if=/dev/cdrom of=your.iso
>> and you'll get a file   your.iso
> 
> 
> I tried this with a small (1.6GB) dvd.  I used the command:
> 
> dd bs=2048 if=/dev/dvd of=name.iso
> 
> It always copies just a few bytes and then dies with an error:
> 
> dd: reading `/dev/dvd': Input/output error
> 384+0 records in
> 384+0 records out
> 786432 bytes transferred in 0.016091 seconds (48873878 bytes/sec)
> 
> Does the same with /dev/cdrom and /dev/hdc.  cdrom and dvd are links to 
> hdc.  I even tried it in a root terminal but got the same thing, so I 
> know that it's not a permissions thing.
> 
> The dvd is mounted and accessible from the desktop so I _should_ be able 
> to dump it to an iso file.
> 
> Anyone know what's going on?
> 
> Ed