[Grml] bootparams not working

Hi,

I've got grml booting off a usb memory stick as per these instructions: http://wiki.grml.org/doku.php?id=usb

I want to change the default boot options, so I added a bootparams/params text file at the root of the memory stick with 'toram ssh=foo nodhcp'. The file seems to be ignored though; it just boots normally with no options added.

Could someone tell me what I'm missing?