Thank you Triplex, tried it out... Soooooo easy to sort out HDD with Sifteam Extreme and with boot plus, I've got it sorted.
May be of interest to somebody but while running Oscam and Crossepg on PKT9.9 I was finding it a little unstable, with long delays to access grid epg and random crashes. I was using a DGS image on Flash, which on boot was patitioning the hdd in 2, a small one to run Linux and then the larger one for recording etc. When I loaded Sifteam Extreme to flash I removed the small patition and loaded PKT 9.9 from Boot Plus on USB. The thing seems much more stable... no long delays and no crashing.
So far anyway!
Thanks again