Tady to taky nekdo resil
http://ubuntuforums.org/showthread.php?t=1994870
a odkazuje se na tento post:
http://ubuntuforums.org/showthread.php?t=2025560&s =3fbd26da37793bd3589acec31d0e4888&p=12246372#post1 2246372
(ja mam gentoo, takze zcela jiny package manager, takze moc neporadim z vlastni zkusenosti)