Search This Blog

Thursday, October 16, 2008

To add a New Hard Disk in LiNUX

There are total 4 steps involved for hard disk upgrade and installation procedure:

Step #1 : Partition the new disk using fdisk command

Following command will list all detected hard disks: # fdisk -l | grep '^Disk'

Output: 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.

To partition the disk - /dev/sdb, enter: # fdisk /dev/sdb The basic fdisk commands you need are:

  • m - print help
  • p - print the partition table
  • n - create a new partition
  • d - delete a partition
  • q - quit without saving changes
  • w - write the new partition table and exit

Step#2 : Format the new disk using mkfs.ext3 command

To format Linux partitions using ext2fs on the new disk: # mkfs.ext3 /dev/sdb1

Step#3 : Mount the new disk using mount command

First create a mount point /disk1 and use mount command to mount /dev/sdb1, enter: # mkdir /disk1 # mount /dev/sdb1 /disk1 # df -H

Step#4 : Update /etc/fstab file

Open /etc/fstab file, enter: # vi /etc/fstab

Append as follows: /dev/sdb1 /disk1 ext3 defaults 1 2 Save and close the file.

Task: Label the partition

You can label the partition using e2label. For example, if you want to label the new partition /backup, enter # e2label /dev/sdb1 /backup

You can use label name insted of partition name to mount disk using /etc/fstab: LABEL=/backup /disk1 ext3 defaults 1 2

No comments: