Hi milanca,

Thanks a lot for your knowledge, a bit too late but better late than never...

What I did during this passed time, I've tried to boot again and I could boot onto OSX86_1 again.

Then I cloned OSX86_1 onto OSX86_2 with ccc and tried again to select the starting partition with OSX86_1 running, no partition is shown... and the system boot up onto OSX86_1 there is no way now to select the partition at boot...

I'll make some more tries,

Peloche