Unix disk images and archiving

From: Jeff Hellige <jhellige_at_earthlink.net>
Date: Mon Mar 25 16:28:19 2002

>Jeff, after I emailed you my answer last night, I was thinking that
>you should be able to just "dd" the images to a files:
>
>dd if=/dev/<insert device here> of=/tmp/name-of-image-file.here
>
>I create floppy images by:
>
>dd if=/dev/rfd0b of=/tmp/3.3_Mot_Boot_Disk.floppyimage

        Ok, I got dd sending output from the optical disk to an
external hard disk, called 'Connor', using the following:

        dd if=/dev/od0a of=/Connor/NS32back

        It creates a file called NS32back on the 'Connor' volume. I
did this because the internal drive is small in the '040 Cube. It
actually did it at a pretty good pace, though I couldn't hear the
reads from the optical disk so I ejected the optical disk and ran the
command again and if then asked me to insert it. What would the
appropriate command be to read the image file and copy back to
/dev/od0a?

        Thanks
        Jeff

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Received on Mon Mar 25 2002 - 16:28:19 GMT