Update NEWS file; turn off tracers; add warning about broken BIOSes to

isolinux.doc.

diff --git a/NEWS b/NEWS
index 4771e5d..75fc43a 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,11 @@
 Starting with 1.47, changes marked with SYSLINUX/PXELINUX/ISOLINUX
 apply to that specific program only; other changes apply to both.
 
+Changes in 1.65:
+       * ISOLINUX: Support booting disk image files (to boot DOS or
+         other non-Linux operating systems), *IF* the BIOS works
+         correctly; unfortunately many BIOSes apparently don't.
+
 Changes in 1.64:
        * Limited support for hardware flow control when using a
          serial port console.

diff --git a/isolinux.asm b/isolinux.asm
index e78d1bd..5371e8b 100644 (file)
--- a/isolinux.asm
+++ b/isolinux.asm
@@ -20,7 +20,7 @@
 ; ****************************************************************************
 
 ; Note: The Makefile builds one version with DEBUG_MESSAGES automatically.
-%define DEBUG_TRACERS                  ; Uncomment to get debugging tracers
+; %define DEBUG_TRACERS                        ; Uncomment to get debugging tracers
 ; %define DEBUG_MESSAGES               ; Uncomment to get debugging messages
 
 %ifdef DEBUG_TRACERS

diff --git a/isolinux.doc b/isolinux.doc
index 56ea93f..cc72480 100644 (file)
--- a/isolinux.doc
+++ b/isolinux.doc
@@ -67,6 +67,12 @@ I would greatly appreciate if you could try out the debugging version
 
       ++++ BOOTING DOS (OR OTHER SIMILAR OPERATING SYSTEMS) ++++
 
+WARNING: This feature depends on BIOS functionality which is
+apparently broken in a very large number of BIOSes.  Therefore, this
+may not work on any particular system.  No workaround is possible; if
+you find that it doesn't work please complain to your vendor and
+indicate that "BIOS INT 13h AX=4C00h fails."
+
 To boot DOS, or other real-mode operating systems (protected-mode
 operating systems may or may not work correctly), using ISOLINUX, you
 need to prepare a disk image (usually a floppy image, but a hard disk