format mount new Disk in linux

List Partitions

The fdisk -l commands lists the partitions on your system.

# fdisk -l /dev/sda

Disk /dev/sdb: 536.9 GB, 536870912000 bytes
255 heads, 63 sectors/track, 65270 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x93e0e5c0

   Device Boot      Start         End      Blocks   Id  System


Disk /dev/sda: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00063dc9

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              64        6528    51915776   8e  Linux LVM

Disk /dev/dm-1 doesn't contain a valid partition table

Entering Command Mode

To work on a disk’s partitions, you have to enter command mode. You’ll need the device name of a disk from the fdisk -l command. The following command enters command mode for the first disk device:

a. fdisk /dev/sdb

Using Command Mode

In command mode, you use single-letter commands to specify actions you want to take. Type m and press Enter to see a list of the commands you can use.

Viewing the Partition Table

Use p to print the current partition table to the terminal from within command mode.

Deleting a Partition

Use the d command to delete a partition. You’ll be asked for the number of the partition you want to delete, which you can get from the p command. For example, if I wanted to delete the partition at /dev/sda5, I’d type 5.

After deleting the partition, you can type p again to view the current partition table. The partition appears deleted, but fdisk doesn’t write these changes to disk until you use the w command.

 Creating a Partition

Use the n command to create a new partition. You can create a logical or primary partition (l for logical or p for primary). A disk can only have four primary partitions.

Next, specify the sector of the disk you want the partition to start at. Press Enter to accept the default sector, which is the first free sector on the disk.

Last, specify the last sector of the partition on the disk. If you want to use up all available space after the initial sector, just press Enter. You can also specify a specific size, such as +5G for a five gigabyte partition or +512M for a 512 megabyte partition. If you don’t specify a unit after the + sign, fdisk uses sectors as the unit. For example, +10000 results in the end of the partition being 10000 sectors after its beginning.

Writing Changes

Use w to write the changes you’ve made to disk.

Use q if you want to quit without saving changes.

Formatting a Partition

You must format new partitions with a file system before you can use them. You can do this with the appropriate mkfs command. For example, this command formats the fifth partition on the first disk with the ext4 file system.

mkfs.ext4 /dev/sdb1

To Mount 

create new directory 

# mkdir /u01

mount /dev/sdb /u01

To Auto mount everytime system reboots

# vi /etc/fstab

add below lines just change the values with your machine values

/dev/sdb1           /u01                 ext3    defaults        1 2

/dev/sdb2           /u02                 ext3    defaults        1 2

To check which format 

 file -sL /dev/sdb1

for more information http://www.howtogeek.com/106873/how-to-use-fdisk-to-manage-partitions-on-linux/

for Swap https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/3/html/System_Administration_Guide/s1-swap-adding.html
http://computernetworkingnotes.com/file-system-administration/how-to-create-swap-partition.html