===== .pxe/.kpxe/.kkpxe =====
  * .pxe is an image designed to be [[pxechaining|chain loaded]], unloading both the underlying PXE and UNDI code sections.
  * .kpxe is a PXE image that keeps UNDI loaded and unloads PXE
  * .kkpxe is a PXE image that keeps PXE+UNDI loaded and return to PXE (instead of int 18h). From [[http://www.etherboot.org/wiki/soc/2008/stefanha/journal/week8|here]]

===== Others =====
  * .dsk is the beginning of an image for a floppy disk
  * .sdsk is the beginning of an image for a "1.44M" (1440 kiB) floppy disk with a FAT file system and the Syslinux boot loader
  * .iso is an image of a CD using ISOLINUX to load a .lkrn
  * .liso is an image of a CD using floppy emulation mode containing a .dsk
  * .lkrn is a binary that can be loaded by any boot loader which can load a Linux kernel
  * .usb
  * .rom is an image that can be burned directly to a PXE ROM.  Most images in this format are named for the PCI vendor/device ID (ie 10b79055.rom)
  * .hrom