[ydl-gen] YDL and space on a PS3 HDD

[Paul Baxter]

Bear in mind that at present you can only format the disk as 10GB for games 
+ rest for Linux or as 10GB for Linux and rest for games.

You can't do something like 50GB for games, 70GB for Linux. (hoping that one 
day Sony give us this option though!)

10GB isn't enough for a full Linux install from say YDL 5, but I can see 
10GB soon not being enough for downloaded game content.

Paul