The current IPP Linux 2.6.22 based bootcd's and stage 4 spec files were based on the Gentoo releng specs fetched from svn://anonsvn.gentoo.org/releng/trunk/releases/2007.0/specs/amd64 .  They can be retrieved from the IPP svn tree as:


{{{
svn co http://svn.pan-starrs.ifa.hawaii.edu/repo/ipp/trunk/catalyst/2007.0-specs/
}}}