perseo root # emerge -n '>=sys-apps/portage-2.0.51'
!!! 'str' object has no attribute 'insert'
!!! 'rm -Rf /usr/portage/profiles; emerge sync' may fix this. If it does
!!! not then please report this to bugs.gentoo.org and, if possible, a dev
!!! on #gentoo (irc.freenode.org)
perseo root # 

perseo root # ls -l /etc/make.profile 
lrwxrwxrwx  1 root root 56 Nov 18 12:21 /etc/make.profile -> ./usr/portage/profiles/default-linux/x86/2006.1/desktop
perseo root #