[ale] ISO image from a mounted CDROM

[Geoffrey]

Geoffrey wrote:
> james at sumners.ath.cx wrote:
> 
>> You, sir, have a weird version of dd. dd works at the device level and
>> should not be able to read a device that is busy.

Two processes can access the same device.  Right now I've got the 
following running:

dd if=/dev/hdc of=foo.iso
dd if=/dev/hdc of=foo1.iso

And, there is a cd mounted on /dev/hdc.

Both files foo.iso and foo1.iso are currently being created.

What about two processes writing to /dev/null?  It's a device and it 
happens all the time.

Try dd'ing a mounted disk and post the error you get.

-- 
Until later, Geoffrey