[CentOS] Bootable 5.4 USB key...

Hi,

I tried to convert my working 5.3 USB bootable key to 5.4 and I apparently cannot get syslinux to find/read its configuration file anymore...

I followed the same process as before:
  mkfs.vfat -n BOOT /dev/sdg1
  syslinux -s /dev/sdg1
  cd /media/BOOT
  cp -rv /mnt/cdrom/isolinux syslinux
  mv syslinux/isolinux.cfg syslinux/syslinux.cfg
  rm -f syslinux/isolinux.bin 
  vi syslinux/syslinux.cfg
  dd if=/usr/lib/syslinux/mbr.bin of=/dev/sdg

I get:
  syslinux: cannot find kernel linux

I tried to copy syslinux.cfg in /, but it still fails...

Did anyone successfuly create a 5.4 key yet?

Thx,
JD