Warning: Backup your important data before using USB
Make a bootable USB:
* Linux: Insert a USB disk, find it's device name of USB. Then use following command:
cat gpxe.dsk > /dev/sdX or dd if=gpxe.dsk of=/dev/sdX
where sdX is your usb drive.
* Windows:You can use dd for windows for Creating bootable USB disks.
* Mac: the dd command mentioned above for linux should also work for MAC.
Steps to follow:
* Boot from the media in which you had copied the gpxe Image.
* In case of Static networking, you need to provide information about your connection, but if you are having DHCP, it should work out of the box.
* You will be presented with menu showing available options to boot from, select one of them.
* Your system should boot in the sytem you select.
* Once you are done with it, reboot the system and remvoe the media, you should get back your old system.