[syslinux] Cluster Size discrepancy between FAT32 and NTFS

[Gene Cumm]

On Tue, Jan 21, 2014 at 5:22 PM, Gene Cumm <gene.cumm at gmail.com> wrote:
> On Tue, Jan 21, 2014 at 2:41 PM, mike setzer <qualityana at sbcglobal.net> wrote:
>> hello Gene,
>>
>> good to get your message
>>
>> I have not seen a link to reply to a particular thread,
>> so I am replying to you right now
>> hopefully the thread can be made to look right, also I double posted since my connection was lost
>> right during the first posting.
>
> Sorry, I thought you were subscribed but this sounds as if you are not.
>
>> On NTFS I have tested cluster sizes from 4096 up through 64K.
>> Did not try smaller sizes than 4096.
>
> Good to note.  The most likely answer is that the code either assumes
> 4096, assumes no more than 4096 OR there's actually a bug in your file
> system.  I'll peek to see if I can tell from your VBR captures.

Hexdumping the first 16B of each, it looks good.  0x08 for 4k and 0x80 for 64k.

  --NT3B_4K.bin
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
  --NT3B_64K.bin
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 80 00 00  |.R.NTFS    .....|
  --SL3_4K.bin
00000000  eb 58 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.X.NTFS    .....|
  --SL3_64K.bin
00000000  eb 58 90 4e 54 46 53 20  20 20 20 00 02 80 00 00  |.X.NTFS    .....|

-- 
-Gene