In code listing 15.1, before the line for: sh grp-install.sh <list of package lists> there should probably be a: cd /GRP (Just for all of the newbies, and for sake of completion)
Before the code line, there is an explanation on where the directory is. :) thanks for reporting -- First, you will need to cd to the location of the packages directory, for the liveCD you will find it at /mnt/cdrom/gentoo/packages. In that directory you will find the grp-install.sh script,
now i found out what he meant on this bug. see also on bug #13123. this bug is a kind of consequences of #13123. fixed on cvs, now i'm closing this bug