IPXE
Sign in to saveiPXE is an open-source implementation of the Preboot eXecution Environment (PXE) client software and bootloader, created in 2010 as a fork of gPXE (gPXE was named Etherboot until 2008). It can be used to enable computers without built-in PXE capability to boot from the network, or to provide additional features beyond what built-in PXE provides.