Explain how to add a new harddrive in Linux (Start from the scratch with holding the hdd in your hand)

Getting Started:

  1. Check to see how many drives are installed: You can do this using the fdisk command. 

    [root@default]# fdisk -l | grep ‘^Disk’


    You should output similar to the following:

    Disk /dev/sda: 251.0 GB, 251000193024 bytes
    Disk /dev/sdb: 251.0 GB, 251000193024 bytes


    A device name refers to the entire hard disk. For more information see 
    Linux partition naming convention and IDE drive mappings .

  1. To partition the disk – /dev/sdb, enter:

[root@default root]# fdisk /dev/sdb

  • For help using the partitioner, use the “m” command:
Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only)

Command (m for help): 
  • partitions using the command “p”:
    Command (m for help): p
    
    Disk /dev/sdb: 50.0 GB, 50019202560 bytes
    255 heads, 63 sectors/track, 6081 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    
       Device Boot    Start       End    Blocks   Id  System
    
    Command (m for help):
  • To create a new partition, issue the command “n” and then select “p” for primary and 1-4 depending on which partition on the drive this is (first, second, third, or fourth):

n(creates a new partition)

p(creates a primary partition)

1(the number 1 denotes the partition will be /dev/sdb1)

Command (m for help): 
Command (m for help): n
Command action
  e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-6081, default 1): 1
Last cylinder or +size or +sizeM or +sizeK (1-6081, default 6081): 6081
  • To save the partition, use the “w” command:
Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@default root]# 
  1. Format the new disk using mkfs.ext3 command:

    To format Linux partions using ext2fs on the new disk, issue the following command:

    [root@default]#mkfs.ext3 /dev/sdb1
  2. Mount the new disk using the mount command:

    First, you’ll need to create a mount point. We’ll use /disk1. This is where we’ll mount /dev/sdb1. Enter the following commands:

     

    [root@default]# mkdir /disk1
    [root@default]# mount /dev/sdb1 /disk1
    [root@default]# df -H
  3. Edit /etc/fstab so the new drive will automatically mount to /disk1 on reboot

    This step can be complicated, if you need assistance at this step, please call Dedicated Server Support at: 877-999-2750

source codero.com/knowledge-base/questions/111/How+do+I+add+a+new+hard+drive+in+Linux%3F