To create the partition from the raw disk, you have to use fdisk utility.Below are the steps to create a partition from the raw disk:
1) Step 1: Run the below command:
fdisk /dev/hd* (IDE) or /dev/sd* (SCSI)
2) Step 2: Type n to create a new partition
3) Step 3: Now partition has been created, and we have to write the changes to the partition table, so type w command to write the changes.