From mboxrd@z Thu Jan  1 00:00:00 1970
From: A Large Angry SCM <gitzilla@gmail.com>
Subject: Re: hmm, can't we give the "root" a parent?
Date: Mon, 12 Sep 2005 14:27:43 -0400
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To: Kay Sievers <kay.sievers@vrfy.org>
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Kay Sievers wrote:
> Can't we teach the git tools that a "root commit" (one without a any
> parent) is not visible as a "root", if let's say:
>   .git/parents/<root-commit-id> -> <fake-parent-id>
> 
> does connect a "fake" parent to the "root"? This way we could add any
> older Linux history to the current tree. Combined with "alternates" it
> could live in a complete different repository too.

Already done. Search the following for "info/grafts".

http://www.kernel.org/pub/software/scm/git/docs/repository-layout.html