Linux – Mounting External Hard Drive on Red Hat

I have Red Hat Enterprise Linux 6 installed on my machine. I am unable to mount an External Hard (NTFS). I have tried several options which are as under:

Option 1
After making a dir /media/windows
mount /dev/sda1 /media/windows/ -t ntfs -o nls=utf8,umask=0222

Option 2
`mount -t ntfs /dev/sdb1 /media/windows

I get this error:
mount: unknown filesystem type 'ntfs'

None of these options seems to be working. Here is dmesg of External drive

usb 1-3: Product: FreeAgent Go
usb 1-3: Manufacturer: Seagate
usb 1-3: SerialNumber: 2GE28HY5
usb 1-3: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi6 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 6:0:0:0: Direct-Access     Seagate  FreeAgent Go     102D PQ: 0 ANSI: 4
sd 6:0:0:0: Attached scsi generic sg2 type 0
sd 6:0:0:0: [sdb] 625142448 512-byte logical blocks: (320 GB/298 GiB)
sd 6:0:0:0: [sdb] Write Protect is off
sd 6:0:0:0: [sdb] Mode Sense: 1c 00 00 00
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sd 6:0:0:0: [sdb] Assuming drive cache: write through
 sdb: sdb1
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sd 6:0:0:0: [sdb] Attached SCSI disk
CE: hpet increasing min_delta_ns to 15000 nsec

any other options..