[syslinux:master] diag/mbr: Clarify README

[syslinux-bot for Gene Cumm]

Commit-ID:  01f71dbc735e9c75cdc56c4d706824e30076e65f
Gitweb:     http://www.syslinux.org/commit/01f71dbc735e9c75cdc56c4d706824e30076e65f
Author:     Gene Cumm <gene.cumm at gmail.com>
AuthorDate: Sun, 27 May 2012 14:13:05 -0400
Committer:  Gene Cumm <gene.cumm at gmail.com>
CommitDate: Sun, 27 May 2012 14:13:05 -0400

diag/mbr: Clarify README

Signed-off-by: Gene Cumm <gene.cumm at gmail.com>

---
 diag/mbr/README |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/diag/mbr/README b/diag/mbr/README
index fb7a7dd..96b67c6 100644
--- a/diag/mbr/README
+++ b/diag/mbr/README
@@ -5,11 +5,13 @@ handoff.bin	Show the data that the BIOS/MBR hands off to an MBR/VBR.
 
   +++ USAGE +++
 
+NOTE: in the examples, mbr.bin, /dev/hda and /dev/hda1 are used as generic representations.
+
 Writing out an MBR is straight forward (it is assumed below that /dev/hda is the target raw device and /dev/hda1 is the target partition):
 
   dd conv=notrunc bs=440 count=1 if=mbr.bin of=/dev/hda
 
-Writing a VBR to match Syslinux requires more work as it must have a jump and be offset into the partition:
+Writing a VBR to match Syslinux requires more work as it must have a jump and be offset into the partition (and as a result the code must be compaible with this offset):
 
   echo -en "\0353\0130\0220" |dd conv=notrunc bs=1 count=3 of=/dev/hda1
   dd conv=notrunc bs=2 count=210 seek=45 if=mbr.bin of=/dev/hda1