[gentoo-catalyst] Doc Question about CD Overlays

[Jackass Project <jackass.project@gmail.com>]

Hi.  I would like to thank the developers and support staff for Catalyst
for all of their efforts in updating and supporting this valuable tool.

I have a question about the implementation of overlays which I haven't
been able to answer by reading the ebuild warnings, the example spec
files, the example spec file templates, and the deprecated web page
documentation.  I'm hoping that you can answer this question for me.

I am capable of successfully building a Live CD using a variety of the
CD spec files without any problems.  I would like to add some files
to the "/" directory of the Live CD, including a tarball and a portage
snapshot.  My question is how I should do this.

I have tried using the "overlay" and the "root_overlay" specifications
(without success), such as the following:

> > livecd/root_overlay: /var/tmp/overlay
> > livecd/overlay: /var/tmp/overlay

I have populated the /var/tmp/overlay directory with the tarball and the
portage snapshot that I would like to be overlaid to the "/" directory
on the Live CD, and the permissions on the directory and the files are
permissive for all users.

I have tried using the gentoo-release-minimal, gentoo-release-universal,
and generic-livecd livecd types, and achieved the same result with each
one:  when the overlay is specified in the spec file, the size of the
.ISO image increases appropriately (suggesting that the desired overlay
files were actually included in the Live CD build), but the files are
not visible on the booted Live CD.  That is to say, once the Live CD is
booted, I cannot find the files in ANY of the directories accessible
within the Live CD booted environment.

Am I just not looking in the right place?  Where are the files supposed
to be located on the Live CD when the livecd/root_overlay and the
livecd/overlay specifications are used?  They're not in "/" or in any of
its subfolders.

I also have to confess that after reading the deprecated web page
documentation, the difference between livecd/root_overlay and
livecd/overlay is still somewhat vague to me.

thanks.

Bob
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