Syslinux - Jul 2010 - EXTLINUX 4.02 can't boot Windows partition

Hello,

I use the extlinux bootloader, and I've recently discovered that the
current version can no longer boot Windows. The message it flashes is
"Requested partition not found!"

After downgrading to the version 3.86, it was able boot correctly.

Unfortunately, I do not know in which was the last version which was
able to boot Windows (I rarely boot it), but I am pretty sure that
4.00-pre47 did.

Here's the relevant section of the extlinux config:

label windows
	menu label Windows XP
	kernel chain.c32
	append hd0 3

Here's the output of "fdisk -l":

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xad2bad2b

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *          63       80324       40131   83  Linux
/dev/sda2           80325   160248374    80084025    5  Extended
/dev/sda3       160248375   234436544    37094085    7  HPFS/NTFS
/dev/sda5           80326   158224184    79071929+  83  Linux
/dev/sda6       158224186   159236279      506047   82  Linux swap / Solaris
/dev/sda7       159236281   160248374      506047   83  Linux

If you need any additional information, I'd be glad to provide it.

Alec

On 07/29/2010 03:07 PM, Alec Moskvin wrote:
> Hello,
> 
> I use the extlinux bootloader, and I've recently discovered that the
> current version can no longer boot Windows. The message it flashes is
> "Requested partition not found!"
> 
> After downgrading to the version 3.86, it was able boot correctly.
> 
> Unfortunately, I do not know in which was the last version which was
> able to boot Windows (I rarely boot it), but I am pretty sure that
> 4.00-pre47 did.
> 
Could you try 4.01, please?

	-hpa

On Thursday 29 July 2010 20:37:03, H. Peter Anvin wrote:
> On 07/29/2010 05:43 PM, Alec Moskvin wrote:
> >>
> >> Could you try 4.01, please?
> >>
> >> 	-hpa
> > 
> > Hi Peter,
> > 
> > I re-installed syslinux 4.01 and the result is exactly the same as
with
> > 4.02.
> > 
> 
> Hm... that's a problem.  Any chance you could try out the prereleases
> between 4.00-pre47 (which you said worked) and 4.01?
> 
> Or better yet, if you have the ability, use "git bisect".
> 
> 	-hpa
> 
> -- 
> H. Peter Anvin, Intel Open Source Technology Center
> I work for Intel.  I don't speak on their behalf.
> 
Hi Peter,

I do not know how to do git bisect, but I was able to determine that the
bug was introduced in 4.00-pre61. With pre60, it boots with no problem.

Alec