If you want to get fedup to Fedora Rawhide ( Fedora 19 ) from Fedora 18,then run

# fedup --network 19 --instrepo http://alt.fedoraproject.org/pub/fedora/linux/development/19/x86_64/os/

warning : Fedora 19 is in Alpha phase,so I am not responsible it above does not work for you – it worked for me and I had not any issue with upgrade


#fedora19, #fedup, #rawhide