How to Expand Linux Disk Space

When it comes to expanding a Linux disk, the process usually involves the following steps:

1. Check disk space: First, use the command df -h to view the current disk usage and confirm if the disk needs to be resized.
2. Extend physical volume: If using LVM (Logical Volume Management), the first step is to extend the physical volume. Use the command fdisk to view the disk partition status, then use the pvresize command to extend the physical volume.
3. Expand logical volume: Use the lvextend command to increase the size of the logical volume to the new space.
4. Extend file system: ultimately use the resize2fs command to expand the file system so it can utilize the entire space.

It is important to note that before performing disk expansion operations, be sure to back up important data to prevent unexpected situations from causing data loss.