ERROR WHEN YOU WANT INSTALL, CENTOS :
” Warning: Disks sda, sdb contains BIOS RAID metadata, but are not part of any recognized BIOS RAID sets. Ignoring disks sda, sdb.”

!! This clean resolve this one situation !!

CLEAN DISC
run cmd in MS windows
diskpart
list disk
select disk [disk which you want clean from MBR data, example 1]
celean

SORUCE :
http://smallbusiness.chron.com
www.centos.org