The company server Linux server needs to be expanded. Let's organize and record it.

If your company's server needs to be expanded, you can search for information online and record it.

The following are the steps to expand the Linux root directory. Follow these steps and you will be successful.

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Query disk usage

df -hl

Query disk

fdisk -l

Use the added disk

fdisk /dev/sdb

After entering this command, the following picture will appear. Just follow the operation command

Create physical volume

pvcreate /dev/sdb1

Query the created physical volume

WeChat search public account: front-end technical programming, reply: front-end to receive information.

pvdisplay

Add the newly added volume to the volume group centos through vgextend

vgextend centos /dev/sdb1

View volume group free block Free PE

vgdisplay

Add expansion capacity to the directory to be expanded

Extend the root directory mount point /dev/mapper/centos-root through the lvextend command

lvextend -L 60G /dev/mapper/centos-root

xfs_growfs /dev/mapper/centos-root

df -hl View expansion status

If you see the red box in the picture above, it means the expansion is successful.

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