Cross EPG - drive mounted in rw?

Running Sifteam's latest in a 91HD, I meet this message when I will configure CrossEPG. "The drive MUST be mounted in rw"

Well, what does this mean..? What is "mounted in rw"?

I was planning on using a USB-stick for epg and swap, and no hdd, as I don't intend to do any recordings. The sick is initialized, and it does pop up as an option in the config-menu of CrossEPG, but somewhat I dont get any EPG info on the screen. This makes me think that the rw-thingy might be the solution.

Any help..?

He he... "..the sick is..." Of course I meant the stick, not sick. Anyhow; if this is so difficult that almost no one can do it, it is very strange that they have this as the only solution.