Add new hard drive and partition format under CentOS

CentOS Add a new hard disk and format the partition

1, first use fdisk -l to see the current state of the disk situation

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above the red identification line can be seen, I added a new hard disk /dev/sdb, size 350G, unformatted format state.

2, use FDISK/DEV/SDB to partition operation.

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input N means creating a new partition

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P indicates the creation of a raw partition

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1 indicates that this partition number is 1.

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1 means the default starting cylinder number is used . if you want to divide multiple areas, first calculate how big, then enter the number

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Enter : carriage return indicates the use of the default end cylinder number . that is, this partition uses the entire hard disk space

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w// Save partition

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3. Check the current partition status again:

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as you can see, a new partition has come out of a /dev/sdb1 . The next step is to format it and then use

4. with MKFS.EXT4 formatting a new partition

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5, mount the use.

[email protected] ~]# mkdir-p/data2// creates a new mount point.

[email protected] ~]# MOUNT/DEV/SDB1/DATA2// Mount.

[Email protected] ~]# df–h

File System  capacity is used available used % mount point

Filesystem Size used Avail use% mounted on

/dev/sda3 26G 7.9G 17G 33%/

Tmpfs 939M 0 939M 0%/dev/shm

/DEV/SDA1 190M 47M 134M 26%/boot

/DEV/SDA4 40G 22G 16G 59%/data/mysql

/DEV/SDB1 345G 67M 327G 1%/data2

6. Auto mount on boot

Set up a new hard drive auto Mount
Add the mount information for the new hard disk in the Vi/etc/fstab. Add the following line :
/dev/sdb1/data2 EXT4 Defaults 1 2(if there is a partition that is 1 3, etc. )

this way , the system automatically mounts the/dev/sdb1 to /data2 after each boot

This article is from the "Behind" blog, make sure to keep this source http://merrycheng.blog.51cto.com/5331300/1671280

Add new hard drive and partition format under CentOS