* MartinŠlouf wrote in grml's BTS on 20130610 / 19:29:

> one more note -- for usb creation I used my laptop -- debian unstable, so:

> martin@chocholous /home/martin
> $ uname -a
> Linux chocholous 3.9-1-amd64 #1 SMP Debian 3.9.4-1 x86_64 GNU/Linux

ok

> martin@chocholous /home/martin
> $ dpkg -l syslinux grml2usb
[...]
> ii  grml2usb               0.13.8           amd64            install Grml system / ISO to usb device
> ii  syslinux               3:4.05+dfsg-6+de amd64            collection of boot loaders

I assume this is syslinux 3:4.05+dfsg-6+deb7u3.

Very strange, even the official syslinux documentation
says "Keywords are case insensitive" so I absolutely don't
understand why it's failing for you.

Alright, since we at least know how to fix your issue let's apply
your proposed workaround:

  http://goo.gl/kWfup
  http://goo.gl/vg9lz

Once grml2usb gets released this bug will be automatically closed.

Thanks for your feedback!

regards,
-mika-