When we Format linux file system

• When we want to expand file system
  When we just added new hard disk drive

Here, we take example suppose we just added new hard disk drives

Step 1 Add Hard Disk physically with Machine

Step 2 login as a root and execute # fdisk –l command. You will see newly added disks here. (Example: /dev/sdc)

Step 3 Now we create file system. Log is as a root user and type following command:

# mkfs.ext3 /dev/sdc1

Step 4 Create mount point directory for the file system

# mkdir /Indian

Step 5 Mount the new file system

# mount /dev/sdc1 /Indian

Step 6 we need to add partition to /etc/fstab file

# vi /etc/fstab

Add/append following entry to file:

/dev/sdc1 /indian ext3 defaults 0 2