default-linux/mips/mips64/ip28/2006.0
# emerge -n '>=sys-apps/portage-2.0.51'
# cd /etc/
# rm make.profile
# ln -s ../usr/portage/profiles/default-linux/mips/mips64/ip28/2006.0 make.profile
# More information can be found at the following URLs:
# http://www.gentoo.org/doc/en/gentoo-upgrading.xml