Package_config : linux-headers

[Prunk Dump]

Hi,

I would like to install the linux-headers package using FAI. Usually I
launch from the shell :

aptitude -r install linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,')

What is the best way to do the same thing with FAI ?

Can I put commands in package_config like : ?

PACKAGES aptitude-r
linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,')

Thanks !