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
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -373,7 +373,7 @@
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