This is basically a copy-paste from a similar post for Fedora 7.
sudo dd if=diskboot.img of=/dev/sdX
WARNING: be really careful to choose the right device or you might screw other partitions.
Also unmount it before doing the operation. If you want to check the contents just unplug and plug your memory stick.
When you reboot you’ll be able to choose the network installation. You’ll want to choose the HTTP method as FTP doesn’t seem to work and since you are required to type the URL of the server it’s better to write it down before rebooting.
For a list of mirrors check here (not working right now). An example URL would be:
Here is the bug report. Please provide feedback if you can.
Thanks to this post.