x86, doc: Document that bootloader ID 4 is used also by iPXE

Etherboot -> gPXE -> iPXE...

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Michael Brown <mbrown@fensystems.co.uk>

diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index c25a53e..9a89e01 100644 (file)
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -373,7 +373,7 @@ Protocol:   2.00+
        1  Loadlin
        2  bootsect-loader      (0x20, all other values reserved)
        3  Syslinux
-       4  Etherboot/gPXE
+       4  Etherboot/gPXE/iPXE
        5  ELILO
        7  GRUB
        8  U-Boot