Misdi

Q. I’ve installed a new 3 TB SATA hard disk on our office Ubuntu Linux . How do I format a hard disk under Linux operating system from a shell prompt?

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A.. 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:  3.0 TB, 3000000193024 bytes

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

So, to create a new partition, you must press, ‘n’ .. and follow steps and answer / enter few options .

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
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