disk mount
first step:
query existing disk
lsblk
[ysf@localhost lesson]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 5G 0 disk
sr0 11: 0 1 1024M 0 rom
sdb system initial partition
sdb newly added disk (not mounted, not formatted)
Step 2:
fdisk /dev/sdb to partition the disk
m show a list of commands
n add a partition
Select the primary partition or extended partition according to the prompts (usually select the default)
Select the partition number according to the prompt (usually select the default)
Select the start and end positions of the partition according to the prompts (usually select the default)
w write changes to disk
third step:
View a list of partitions
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 5G 0 disk
└─sdb1 8:17 0 5G 0 part
sr0 11: 0 1 1024M 0 rom
The partition sdb1 has been created and formatted below.
mkfs -t ext4 /dev/sdb1
Format the sdb1 partition as an ext4 type filesystem
the fourth step:
Choose a directory to mount
For example, mount it in the ~/newdisk directory
mount /dev/sdb1 ~/newdisk
lsblk to view the list of partitions
[ysf@localhost ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 5G 0 disk
└─sdb1 8:17 0 5G 0 part /home/ysf/newdisk
At this point you can see that the mount is complete
Note: After restarting at this time, the mounted disk will disappear
Execute shutdown -r now
After reconnecting, lsblk view the list of partitions
[ysf@localhost ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 5G 0 disk
└─sdb1 8:17 0 5G 0 part
sr0 11: 0 1 1024M 0 rom
At this point, it is found that the mounted disk has disappeared. To mount it permanently, you need to modify the configuration file.
the fifth step:
Modify the configuration file
vi /etc/fstab
Add the following line
/dev/sdb1 (partition directory) /home/ysf/newdisk (mount directory) ext4 defaluts 0 0
source /etc/fstab
shutdown -r now
lsblk
[ysf@localhost ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 5G 0 disk
└─sdb1 8:17 0 5G 0 part /home/ysf/newdisk
sr0 11: 0 1 1024M 0 rom
At this point, it is found that the partition mounted to the directory does not fail after restarting
Mounting completed here