LVM Commands

Process to resize a volume

See current partition sizes

 df -h

Verify that there is enough space

 vgs

Extend the logical volume (adjust your logical volume name if different)

 lvextend -L +20g -n /dev/mapper/volgroup0-lv_home

Resize the filesystem after enlarging it

 resize2fs /dev/mapper/volgroup0-lv_home

Check the partition size again

 df -h

Creating a snapshot

Verify how much space you have left

 vgs

Create the snapshot

 lvcreate -L 5GB -s -n root_snapshot_20190526 /dev/mapper/volgroup0-lv_root

List current snapshots

 lvs

Restoring a snapshot

Snapshot restore command

 lvconvert --merge /dev/volgroup0/root_snapshot_20190526

Reboot the machine to finalize the changes

 reboot

Notice that the test file is gone

 ls /home/<user>

Making a Snapshot Final

To make a snapshot final, remove it

 lveremove /dev/volgroup0/root_snapshot_20190526