Some time while installing Linux OS on a used Hard drive, It gave an error message
“Disk contains BIOS metadata, but is not part of any recognized BIOS RAID sets. Ignoring disk sdx”
To resolve the issue try running following commands in rescue mode:
#dmraid -r -E /dev/sda
If you get error please perform the below command.
#dd if=/dev/zero of =/dev/sda bs=512 count=2
#fdisk -s /dev/sda
#dd if=/dev/zero of=/dev/sda seek = number_of_sectors -20 bs=1k
Note :: number_of_sectors=output of fdisk -s /dev/sda
Repeat these steps for all disks