Updating from Fedora 15 to Fedora 16

I have update my fedora 15 to 16 successfully today. So know I will share you the step.

First install the new Fedora 16 gpg key.

rpm --import https://fedoraproject.org/static/A82BA4B7.txt

then upgrade all packages using this commands.

yum update yum

yum clean all

yum --releasever=16 --disableplugin=presto distro-sync

you must have a root permission to do all the command above. so use sudo or log in as a root