Get the new hard drive connected as primary slave, secondary master or secondary slave...
After that, when the server is up, type fdisk -l, and determine if the hard drive has been detected. ou shall be able to see hdb, hdc or hdd in addition to the different partitions of hda ( in case it's scsi, they will be sda, sdb etc )
type fdisk /dev/hd* ( where * is b, c, or d - whatever letter that the additional hard drive corresponds to )
You shall be taken to the disk partitioning wizard, where you can create the different partitions of the hard drive. If you do not wish to partition the hard drive, and just need a big complete partition, you can create a single one to occupy the entire space. Please refer http://www.justlinux.com/nhf/Install...ing_fdisk.html
to learn how to partition using fdisk.
After creating the partition(s), crate the filesystem in it(them) using the command mkfs.ext3:
mkfs.ext3 /dev/hd*# ( * = b, c or d; # = 1, 2, 3 etc )
After this, the partitions will be ready to be mounted. You can use the mount command to mount the partitions onto any directory, and copy over anything fom the old hard drive using simple cp or mv commands