Hi blue68f100 and Phoenix32,
Thanks for the advise but I'm still very confuse as to what should i do from now.
Should i get 1 new HD and place it in there just to try booting it up or use the gsu file that I have to make the upgrade.
Furthermore do you think it's possible to copy the OS from the drive since it reside in it's own area that is not being effected by the RAID.
Hope to hear from you and Sorry for the greek word
Thanks
Pang