using layman and/or overlays in catalyst? (I want to try out aufs livecd)

Is there a way to use an overlay while building a livecd
with catalyst? I'd like to create one using sys-fs/aufs,
whiches ebuild lies in the sunrise overlay.

If I don't use snapcache, will the local overlays be usable
with a simple "source
/etc/portage/local/layman/make.conf" appended to
/etc/catalyst/catalystrc ? Would it be safe?
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On Sun, 2007-02-25 at 16:38 +0100, ducasse.isidoregmail.com
wrote:
> Is there a way to use an overlay while building a
livecd with catalyst? I'd like to create one using
sys-fs/aufs, whiches ebuild lies in the sunrise overlay.
> 
> If I don't use snapcache, will the local overlays be
usable with a simple "source
/etc/portage/local/layman/make.conf" appended to
/etc/catalyst/catalystrc ? Would it be safe?

Don't use layman.

Add this to your spec files (all of them):
portage_overlay: /usr/portage/local/layman/sunrise

Now, you need to understand that these packages will *not*
make it into
any snapshot of any kind.  The package *will* be on your CD,
but that's
it.  There won't be much trace of it other than the package
itself, and
its VDB entry.

-- 
Chris Gianelloni
Release Engineering Strategic Lead
Alpha/AMD64/x86 Architecture Teams
Games Developer/Council Member/Foundation Trustee
Gentoo Foundation

On Sun, 25 Feb 2007 21:19:12 -0500
Chris Gianelloni <wolf31o2gentoo.org> wrote:



> Add this to your spec files (all of them):
> portage_overlay: /usr/portage/local/layman/sunrise
> 
Thank you for the tip! In fact I managed to add an overlay
by copying it to snapshot_cache and including it in
catalystrc but this is really neater.

> Now, you need to understand that these packages will
*not* make it into
> any snapshot of any kind.  The package *will* be on
your CD, but that's
> it.  There won't be much trace of it other than the
package itself, and
> its VDB entry.

That's a lot yet! 
the /var/db/pkg/aufs,/environment.bz2 even allows to guess
the overlay used.

In a word, catalyst rules!
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