USB booting :: FAT with 2048b block size bootable ?

Thank you for your answers. This is just what I suspected.

I'm afraid that partitionning is not to blame. I already made a 250MB bootable partition but I was unable to make a 512b sector sized FAT16.

If I can't run syslinux on this key, is there an alternative method to put a bootable dsl on it ? Maybe from iso version of dsl ?

use Gparted.
http://damnsmalllinux.org/cgi-bin....t=17578

original here.