Thank you @haydibe! That works like a charm 😀
I followed your final suggestion "DiskIdxMap=000C01 SataPortMap=114 would result in SATA1:0 = Slot1, SATA0:0 = Slot13, LSI Slot2-5."
Great tutorial jadehawk!
@haydibe could you indicate me which changes you did with SataPortMap in grub.cfg ? I also have a LSI Controller in passthrough mode which didnt work properly since i update ( it only show me 1 of 4 hdd attached to the controller... somethin strange 😥