Add a new hard disk under CentOS and partition and format it

Add a new hard disk under CentOS and partition and format it

1. First Use fdisk-l to check the disk status in the current state.

As shown in the red lines above, I added a new hard disk/dev/sdb, with a size of 350 GB and unpartitioned formatting status.

2. Use Fdisk/dev/sdb for partitioning.

Input N to create a partition.

P indicates creating an original partition.

1 indicates that the partition number is 1.

1 indicates the use of the default start cylindrical number. If you want to divide multiple zones, first calculate the size of the column and then enter a number.

Enter: Press enter to use the default ending cylinder number. That is, the partition uses the entire hard disk space.

W // Save the partition

3,View the status of the current partition again:

We can see that a new/dev/sdb1 partition has been created. In the next step, format it and then use

4,UseMkfs. ext4Format new partition

5. Mount and use.

[Root @ lan27 ~] # Mkdir-p/data2 // create a mount point.

[Root @ lan27 ~] # Mount/dev/sdb1/data2 // mount.

[Root @ lan27 ~] # Df-h

File System capacity used available % mount point

Filesystem Size Used Avail Use % Mounted on

/Dev/sda3 26G 7.9G17G 33%/

Tmpfs 939 M 0939 M 0%/dev/shm

/Dev/sda1 190 M 47M134M 26%/boot

/Dev/sda4 40G 22G16G 59%/data/mysql

/Dev/sdb1 345G 67M327G 1%/data2

6,Automatic mounting upon startup

Set automatic mounting for New Hard Disk boot
Add the mount information of the New Hard Disk in vi/etc/fstab. Add the following line:
/Dev/sdb1/data2 ext4 defaults 1 2 (if another partition is 1 3, and so on)

In this way, after each boot, the system will automatically mount/dev/sdb1 to/data2