The second chapter on howto setup a chroot for on gentoo is missing in the AMD64 Howtos.
The link to [1] seems outdated. I think it should link to [2]. A similar howto is available at [3]. [1 ]http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=2 [2] https://www.gentoo.org/proj/en/base/amd64/howtos/chroot.xml [3] https://www.gentoo.org/proj/en/base/x86/chroot.xml
I believe the old gorg site has been vanished and all the things had been moved to the viki before (see https://wiki.gentoo.org/wiki/Project:AMD64/32-bit_Chroot_Guide as example)