How to modify and mount disk directories in Centos7

Both centos7 and centos6 should be able to use this method to mount disks. The blogger recently bought a server and found that the data disk that comes with the server is a directory with the name /data, but the Pagoda website is installed to /www by default. Directory, what should I do if I don’t know how to mount it? This article will teach you how to mount /data of the data disk to /www.

1. Check the current disk mounting status:

Command: df -h
[root@125-227-249-184 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root 50G 2.3G 45G 5%
/tmpfs 7.8G 14M 7.8G 1% /dev/shm
/dev/sda1 477M 28M 425M 7% /boot
/dev/mapper/VolGroup-lv_home 53G 52M 50G 1% /home
/dev/sdb1 917G 14G 857G 2% /data

2. Create a new www directory

Command: mkdir /www

3. Uninstall the original /data directory

Command: umount /data

4. Mount the new directory/www

Command: mount /dev/sdb1 /www

5. Check whether the mounting is successful

[root@125-227-249-184 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root 50G 2.3G 45G 5%
/tmpfs 7.8G 14M 7.8G 1% /dev/shm
/dev/sda1 477M 28M 425M 7% /boot
/dev/mapper/VolGroup-lv_home 53G 52M 50G 1% /home
/dev/sdb1 917G 14G 857G 2% /www

6. Set up automatic mounting at startup (if not set, the mounted disk directory will not exist after the next restart), and the partition information must be added to /etc/fstab.

Command: echo '/dev/sdb1 /www ext4 defaults 0 0' >> /etc/fstab

Check whether the addition is successful: cat /etc/fstab

[root@125-227-249-184 /]# cat /etc/fstab
 
#
# /etc/fstab
# Created by anaconda on Fri Dec 8 07:21:20 2017
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root/ext4 defaults 1 1
UUID=7ffd29bd-6e23-4350-b344-507b6b2a43be /boot ext4 defaults 1 2
/dev/mapper/VolGroup-lv_home /home ext4 defaults 1 2
/dev/mapper/VolGroup-lv_swap swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/sdb1 /www ext4 defaults 0 0

Check that /dev/sdb1 /www ext4 defaults 0 0 exists in /etc/fstab, which means that the partition information is added successfully and it will be automatically mounted after restarting.

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