====== PXE ======
  * http://erpxe.org/Main_Page
  * https://wiki.openwrt.org/doc/howto/tftp.pxe-server
  * https://urbackup.atlassian.net/wiki/spaces/US/pages/1441795/Restoring+Images+from+PXE
  * https://possiblelossofprecision.net/?p=491
  * https://ramcloud.atlassian.net/wiki/spaces/RAM/pages/6848518/Updating+BIOS+automatically+with+PXE+and+FreeDOS
  * http://wiki.kolibrios.org/wiki/Booting_from_PXE
  * http://clonezilla.org/livepxe.php
  * https://wiki.debian.org/PXEBootInstall
  * https://www.openbsd.org/faq/faq4.html
  * https://www.reactos.org/wiki/Building_PXE-ready_ReactOS
  * https://netboot.xyz/
  * https://memo-linux.com/installation-de-fog-1-4-4-sur-debian-9/