Requirements: Add a 2GB disk to the VMware virtual machine and mount it under the /home/newdisk directory. The
whole process is divided into 5 steps as follows:
- Set up a virtual machine to add a new disk
- Will add new disk partition fdisk
- Format mkfs
- Mount
- Set permanent mount /etc/fstab
步骤一：虚拟机增加磁盘
Open the virtual machine settings, and then add a disk, as long as you select the size, click Next for everything else.
步骤二：分区
The command is fdisk /dev/sdb
and then enter n to add a new partition, then select p, the partition type is primary partition, and then select 1 to be the first primary partition. Then write all the remaining space twice by default, and finally enter w to write the modification. Or type q to exit.
[root@localhost Desktop]fdisk /dev/sdb
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): n # 输入n , 新增分区
Command action
e extended
p primary partition (1-4)
p # 输入p , 设定为主分区
Partition number (1-4): 1 # 选择1 ，为第1分区
First cylinder (1-261, default 1): # enter ,选择默认
Using default value 1
Last cylinder, +cylinders or +size{
K,M,G} (1-261, default 261): # enter ,选择默认
Using default value 261
Command (m for help): w # 输入w ，写入修改
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
步骤三：格式化
The command is: mkfs -t ext4 /dev/sdb1
[root@localhost Desktop] mkfs -t ext4 /dev/sdb1
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
131072 inodes, 524112 blocks
26205 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=536870912
16 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
步骤四：手动挂载
Command: mount disk file directory# Mount the disk on the directory
root@localhost Desktop]# mount /dev/sdb1 /home/newdisk
[root@localhost Desktop]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 300M 0 part /boot
├─sda2 8:2 0 3.9G 0 part [SWAP]
└─sda3 8:3 0 35.8G 0 part /
sdb 8:16 0 2G 0 disk
└─sdb1 8:17 0 2G 0 part /home/newdisk # 挂载成功
But this is a single mount, and it will fail after restarting.
步骤五：永久自动挂载
The method of permanent automatic modification is to modify the /dev/fstab configuration file, write the disk and file mounting information into /etc/fstab,
/dev/sdb1 /home/newdisk ext4 defaults 0 0
and then execute mount -a.
[root@localhost Desktop]# vim /etc/fstab
#
# /etc/fstab
# Created by anaconda on Thu Jul 9 00:04:07 2020
#
# 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/sdb1 /home/newdisk ext4 defaults 0 0
UUID=0f7d9402-9f6c-4b87-ab96-8e16dab67957 / ext4 defaults 1 1
UUID=2c00004a-e632-48d9-bc8e-d8c83acb2019 /boot ext4 defaults 1 2
UUID=50fe9b93-7fe0-4c14-acfc-44c35e3b034a 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
[root@localhost Desktop]# mount -a
[root@localhost Desktop]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 300M 0 part /boot
├─sda2 8:2 0 3.9G 0 part [SWAP]
└─sda3 8:3 0 35.8G 0 part /
sdb 8:16 0 2G 0 disk
└─sdb1 8:17 0 2G 0 part /home/newdisk # 挂载成功， 重启之后挂载仍可用。