Introduction to a new SIG for creation of Live DVD

[John Reiser]

> Deltaisos are capable of saving roughly half the download size in
> going from Fedora N to Fedora (N+1), but only work for installation
> images, not live images.  Is there any form of delta compression for
> live images which is competitive with this?

It hasn't been productized, but approximately:
    unsquashfs  old-Live.img  old-Live.tree   # local  ("slave")
    unsquashfs  new-Live.img  new-Live.tree   # remote ("master")
    rsync  remote:new-Live.tree  local:old-Live.tree   # "delta compression" happens here
    mksquashfs  old-Live.tree new-Live.img   # local

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