Loaded plugins: dellsysidplugin2, refresh-packagekit
You need to be root to perform this command.
how to be root on Linux shell?
1. you just login as root user and... walaaaa you are root... or
2. use su command to change surrent user to root user as on example below
[fedora10@fedora ~]$ su -
Password: <--key in root user password here
[root@fedora ~]# <--indication that you are root and ready to execute command