How to view Linux block device information?

How to view block device information in Linux?

In Linux systems, block devices refer to devices that store data, such as hard drives, solid-state drives, etc. Understanding block device information is important when performing system administration and troubleshooting. The following will introduce how to view block device information in a Linux system through the command line.

1. Use the lsblk command

lsblk is a command used to list block device information and can display detailed information about hard disks, partitions, etc. You can view the block device information in the system through the following command:

lsblk

Running the above command will list all block device information in the system, including device name, size, mount point, etc.

2. Use the fdisk command

The fdisk command is a command used to manage disk partitions and can also be used to view block device information. You can view the information of a specific block device through the following command:

fdisk -l /dev/sda

In the above command, /dev/sda is the name of the block device for which the information is to be viewed. It can be replaced with a different device name according to the actual situation.

3. Use the blkid command

The blkid command is used to view information such as the UUID and file system type of the block device. You can view the information of a specific block device through the following command:

blkid /dev/sda1

In the above command, /dev/sda1 is the name of the block device partition where the information is to be viewed. It can be replaced with a different partition name according to the actual situation.

4. Use the udevadm command

The udevadm command can obtain detailed information about block device information, including device properties, drivers, etc. You can view the information of a specific block device through the following command:

udevadm info --query=all --name=/dev/sda

In the above command, /dev/sda is the name of the block device for which the information is to be viewed. It can be replaced with a different device name according to the actual situation.

Through the above commands, you can easily view the information of block devices in the Linux system, helping you better manage and maintain the system. Hope the above content is helpful to you.

The above is the detailed content of How to view Linux block device information?. For more information, please follow other related articles on the PHP Chinese website!