Booting grub with the Fedora PXE vmlinuz/initrd images allows you to perform a network installation of Fedora over any existing linux distro, should you not be able to write to or boot from the conventional CD/DVD install media. A PXE netinstall can both be done locally, and with extra care, remotely using VNC. Both methods are explained in this HOWTO.

via Installing Fedora Using PXE Images — Fedora Unity Project.