Disk imaging program?

[John Hupp]

On 6/24/2014 4:05 PM, Niles Rogoff wrote:
> _x_ imaging of Windows and Linux partitions in a single image-the-disk 
> operation that includes the boot sector and related structures
> _x*_ bootable disc can do offline image backup and restore
> _x**_ image to spanned DVD's
> _x***_ good compression
> _x_ free for business as well as personal use
>
> dd
>
> * ubuntu, slitaz or any other livecd
> ** step 1: http://www.computerhope.com/unix/usplit.htm Step 2: /dev/cdrom
> *** tar -czf
>

Interesting idea.  Though dd does a slow and heavy sector-by-sector 
copy, if speed is not an issue, then you address the compression angle 
with tar.  But I wonder if dd copies currently unallocated sectors with 
old data in them, and if tar is then constrained to preserve that data 
in its compression?  If so, then you're compressing data you don't even 
want.  (I suppose I could begin the whole thing by wiping the free 
space, but I wouldn't add that step unless it turned out that I need to.)

And can you kindly confirm that dd knows how to prompt for the next split?

>
> Has a large learning curve for beginners to linux though
>
>
> On Tue, Jun 24, 2014 at 3:58 PM, compdoc <compdoc at hotrodpc.com 
> <mailto:compdoc at hotrodpc.com>> wrote:
>
>     > Clonezilla doesn't know how to span to DVD's.
>
>     I use clonezilla with linux and windows, but I save to a network
>     share or
>     local drive. If I had to backup to DVDs, I'd kill myself.
>
>
>
>
>
>
>
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