[H-GEN] Creating disk image

[John Boggon]

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Ben Carlyle wrote:
 
> dd if=/dev/hda1 of=/dev/hda2

So, in this case you are using dd to copy from one partition to another
and, as already stated, can be used to go from one device to another.
If linux sees the devices in /dev as files then,

dd if=/cdrom/image.bin of=/dev/hda
should work, right ?

Or would it be better to bypass ISO-9660 altogether like this

dd if=/dev/hda of=/home/john/tmp/image.bin (hda = drive to be imaged)
cdrecord -v -o /home/john/tmp/image.bin speed=4 dev=6,0
 
to create the image, then

dd if=/dev/cdrom of=/dev/hda

to lay the image back down again ?

I've noticed that Debian uses this method to create it's installation
disks but passes a block size to dd.
Do I need to specify a blocksize ? 

John.

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