[Fedora-livecd-list] Migrating persistent overlay into the squashfs

[James Heather]

I have a feeling that someone recently wrote something to allow you to
migrate changes from the persistent overlay into the squashfs image,
thus freeing up the space in the overlay. The obvious use case is:


     1. Boot live USB stick
     2. yum update (which will eat up lots of overlay space)
     3. Run whatever it is, from a separate system, to recreate the
        squashfs image to take account of the changes (freeing up the
        overlay space again)


But I can't find it. It doesn't seem to be in liveimage-mount. Did
whatever it was make it into F15? If not, does anyone know what it is,
where it is, how to use it, and whether it works?

Thanks.

James
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