fai_dirupdate_[1234].diff:

Try to provide an "update chroot" action, like:

  # TARGET=/dev/shm/grml_chroot fai -C/etc/grml/fai -cGRMLBASE,I386 dirupdate

Needs work though...

fai_dirinstall_check.diff:

Make sure to exit in fai dirinstall if task instsoft wasn't successfull.