[ale] ghost for linux with LVM support

[Christopher Fowler]

On Fri, 2006-02-17 at 09:39 -0500, Greg Freemyer wrote:
> 
> Unfortunately this captures the freespace as well as the live, but the
> compression can be pretty on the freespace if it was never written to.

Yep and that can be a problem if it was.  I had one idea to try an
initialize that free space.  On the FS you are trying to backup try
this:

dd if=/dev/zero of=file

When you run out of space simply delete the file.  Maybe most of that
free space will be simply NULLs and will compress nicely.