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Help Center/ Bare Metal Server/ FAQs/ OS FAQ/ Common Linux Commands

Common Linux Commands

Updated on 2022-09-15 GMT+08:00

lsblk

The lsblk command is used to list all available block devices and the dependencies between them, except the RAM disks. Block devices include hard disks, flash memory, and CD-ROM.

By default, the lsblk command lists all block devices in a tree structure. Start the terminal and run the following command:

lsblk
NAME    MAJ:MIN  RM  SIZE RO TYPE  MOUNTPOINT
sda     202:0    0   40G  0  disk 
├─sda1 202:1   0    4G  0  part  [SWAP]
└─sda2 202:2   0   36G  0  part  /
sdb     202:16   0   10G  0  disk

The parameters are as follows:

  • NAME: block device name
  • MAJ:MIN: primary and secondary device numbers
  • RM: whether the device is removable. 0 indicates no and 1 indicates yes.
  • SIZE: device capacity
  • RO: whether the device is read-only. 0 indicates no and 1 indicates yes.
  • TYPE: block device type (disk or a disk partition)
  • MOUNTPOINT: mount point of a device
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