[syslinux] USB Flash disk with sector size 2048

[H. Peter Anvin]

Geert Stappers wrote:
> Op 10-01-2007 om 23:00 schreef Francois Boisson:
>> Hello every one an a pretty new year.
>>
>> I'm making a derivative a the Feather linux-live which can be found
>> here: http://franboisson.homeip.net/clef/ClefAgreg.iso
>>
>> Everything works find except with USB key with sector size different
>> then 512 (2048 in my case). I look at the source of syslinux and change
>> the following:
>>

You actually have a device with a BIOS sector size other than 512?  Oh, 
gawd...

>> * The test in syslxmod.c
>> * Change each time I see SECTOR_SHIFT=9 in SECTOR_SHIFT=11
> 
> 2**9=512  2**11=2048

I really would need to pick things apart to know how those even behave. 
  It isn't really all that clear how such a thing should behave, mostly 
because the only ones that have actually tried it over the years are MO 
drive vendors; everyone else have used 512-byte virtual sectors 
regardless of physical sector sizes (real flash media actually have 
sector sizes of 64K or larger.)

	-hpa