Translations:Upgrading Gentoo/111/it
From Gentoo Wiki
root #
mv /usr/portage /usr/portage.latest
root #
tar xjpf /percorso/di/portage-20090720.tar.bz2 -C /usr
root #
emerge -u portage
root #
mv /usr/portage /usr/portage.latest
root #
tar xjpf /percorso/di/portage-20090720.tar.bz2 -C /usr
root #
emerge -u portage