[gabriel]

 The "second step" in the referenced article has three footnotes which give slightly more detail at the bottom of the same page. 

Oops, indeed I didn't see it  :blush: I will try it on the next week end. 

I have some experience with other unix systems (Mac OSX and a little bit of Solaris) and linux. Thank you for the link to the techpub, it will be helpful.