Goal: to be able to mount a new hard disk on a linux system (boot automatically mounted) from ⓒ directly start operation
Ⓐ view the current system disk mounted case: lsblk -f (teachers do not leave)
- sda: the current system has one physical disk sda
sda1: a first physical hard disk first partition
ext4: The format of this partition (linux commonly used formats
7cc94e03-8b1a-4845-97fb-49a2c39afd8c: indicates that uniquely identifies the partition (unique ID)
/ Boot: indicates that the partition hung directory
[SWAP]: Swap
Swap: When there are large amounts of data need to write memory, but the memory is insufficient, the remaining data is written to a swap partition
Description swap partitions: big data cluster will close out the swap partition before installing the cluster.
Ⓑ [root @ node01 ~] # fdisk the -l view information
Ⓒ virtual machine add a new hard disk
- In the vm virtual machine, right - "Set -" hard disk - "add -" Next. . . .
- Linux system reboot
- Re-view the disk mount case
- [root@node01 ~]# fdisk -l
ⓓ 对磁盘进行分区 并 格式化
分区 ： [root@node01 ~]# fdisk /dev/sdb
对新分区进行 格式化
[root@node01 ~]# mkfs -t ext4 /dev/sdb1
ⓔ 1 磁盘 永久挂载
2 cat /etc/fstab 查看 uuid （补充 查看uuid 的另一种 方法） ll /dev/disk/by-uuid/
vi /etc/fstab 编辑 文档
3 重新 挂载 ： mount -a
ⓕ reboot
