[syslinux] append parameter??

[elmar bschorer]

hi,

i am wondering about how submission of append parameters can be done.
i have the following isolinux.cfg:
---------------------------------------------------------------------
DEFAULT linux
PROMPT 1
TIMEOUT 100

LABEL linux
         KERNEL vmlinuz
         APPEND initrd=initrd.gz nomce quiet
----------------------------------------------------------------------

what i want to do is to tell at start which keyboard layout to use by 
giving the propriate parameter e.g.:
linux keyboard=foo

i`am reading the given parameter in linuxrc with the following command:

CMDLINE="$(cat /proc/cmdline)"

to test if all went well i check it by executing:

echo $CMDLINE

in linuxrc. but nothing is beeing displayed!
hmmm...what am i doing wrong??