ubuntu20.04 automatic disk mount /etc/fstab at startup

Automatic disk mount at startup

/etc/fstab Explanation

sudo vim /etc/fstab 

# <file system>  <mount point>  <type>         <options>        <dump>       <pass> 
# <设备文件名称>  <挂载目录>      <文件系统类型>  <文件系统参数>   <是否备份>   <开机时自检>

• Device file name
  The device name of the file system, device name (such as /dev/sda1), LABEL or UUID, UUID is recommended, (sudo blkid can view)

• Mount directory
  Mount to the corresponding folder

• File system types
  The following are most common file system types (ext3, tmpfs, devpts, sysfs, proc, swap, vfat)

• File system parameters
  are generally set to defaults.

• Dump file system (backup or not)
  1 - back up
  0 - don't back up

• File system check,
  the number in this field indicates whether the file system needs to be checked by fsck.
  0 - indicates that the file system does not need to be checked,
  1 - indicates that the file system needs to be checked first (for the root file system)
  2 - indicates that the file system is checked after the root file system is checked

for example

Automatically mount at boot

sudo vim /etc/fstab 

#加入下面内容
/dev/sdb /disk2 ext4 defaults 0 1

or

UUID=d765d835-4989-4bff-8ae8-116c654d4bba   /disk2   ext4    defaults    0   2

The device name of the file system, device name (such as /dev/sda1), LABEL or UUID, UUID is recommended, (sudo blkid can be viewed)

• View hard drive list

sudo fdisk -lu

• View UUID

sudo blkid

Manual mount

• Add partitions to the new hard drive

sudo fdisk /dev/sdb 
n：添加新分区 
p：使用主分区 
l：主分区编号为1，这样创建的分区为sdb1

• format new partition

sudo mkfs -t ext4 /dev/sdb #使用ext4格式化sdb分区

• Create a folder and mount the new partition to it

sudo mkdir /disk2 
sudo mount /dev/sdb /disk2 #将sdb1挂载到/disk2文件夹上

• unmount partition

sudo umount /disk2

Currently, our machines:

sudo mount /dev/sdb /data