Disk imaging program?

[John Hupp]

On 6/30/2014 11:03 AM, Normand Marion wrote:
> use dd.
>
> Be carefull dd does not permit error.
>
> If you want all your drive...boot from CD/DVD linux image.
>
> Open a terminal
>
> Plug-in an external device on a USB port
>
> dd if=/dev/sda of=/dev/sd? bs=10M
>
> refer to the dd's man page to see exactly what your doing.
>
>
> 2014-06-24 14:35 GMT-04:00 John Hupp <ubuntu at prpcompany.com 
> <mailto:ubuntu at prpcompany.com>>:
>
>     I'm looking for a freeware disk imaging program that supports/offers:
>     __ imaging of Windows and Linux partitions in a single
>     image-the-disk operation that includes the boot sector and related
>     structures
>     __ bootable disc can do offline image backup and restore
>     __ image to spanned DVD’s
>     __ good compression
>     __ free for business as well as personal use
>
>     Notes on a few of the programs I have considered:
>
>     Clonezilla doesn't know how to span to DVD's.
>
>     Promising newcomer Aomei Backupper has no stated support for ext4
>     partitions.
>
>     Redo Backup is a front-end for partclone, and I have seen no
>     documentation indicates that it supports spanned DVD's.
>
>     In short, everything that I have looked at in the past or now in a
>     fresh new sweep falls short on one point or another.
>
>     I'm willing to fudge on my desire for a single image-the-disk
>     operation if I could find a recipe or documentation on how to use
>     a partition-oriented tool with a script that uses several
>     succeeding operations to build a complete drive backup. Needless
>     to say, I would want to arrive at both backup and restore scripts.
>
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>
>
> -- 
> *Normand Marion*
>
> normand.marion at gmail.com <mailto:normand.marion at gmail.com>
>

Thanks for weighing in, Normand.

But in this thread we have already worked over the prospect of using 
dd.  Much of the exchange explored the idea of using dd in conjunction 
with utilities that zero-fill free space (as a preliminary step) and 
then compress and split the resulting dd archive, finishing up with 
burning those splits to DVD's.  But that idea stalled at the point where 
there was no apparent way to input the DVD splits to dd during a 
restore.  (Also a challenge with removing the boot disc and replacing it 
with a data disc, but I imagined that could probably be solved with a 
small distro that boots to memory.)

One could, of course, recombine the splits on a USB hard drive before 
using dd for the restore, but if a USB hard drive were part of the 
recipe, I would simply use Clonezilla.
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