[Fedora-livecd-list] Is it possible to have an updatable system on a usb stick?

[Jeremy Katz]

On Mon, 2008-08-04 at 08:43 -0500, Richard Shaw wrote:
> On Mon, Aug 4, 2008 at 7:54 AM, Jeremy Katz <katzj at redhat.com> wrote:
> >> Also, after reading a previous post on this list, I would keep updates
> >> to only things you care about since the overlay file records block
> >> changes and you will eventually run out of overlay.
> > This is the case and unfortunately, with things currently in the kernel,
> > I don't really see any way around it.  Modulo writing some tool to
> > (likely offline) analyze and rewrite the snapshot file.  But relatively
> > deep dark voodoo required to write such a tool
> 
> I don't know if this would be easier, but what about a tool that would
> incorporate the changes back into the image file and then re-zero the
> overlay?

The problem is that incorporating the changes back in basically boils
down to "make a new image".  Which isn't that difficult to do, it's just
a matter of having the disk space for it and also the time -- it'd
largely just be a matter of running good chunks of the livecd image
creation process over again.

Jeremy