To increase the size of a hard disk, first power off the virtual machine, go to the Hardware tab, select the desired hard disk. Then, select Resize from the Disk Action drop-down menu, input the desired size increment, and select Resize disk.
After resize has completed, start up your virtual machine and login.
Confirm the relevant disk has increased in size.
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1T 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1G 0 part /boot
└─sda3 8:3 0 1T 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 31G 0 lvm /
Resize the partition with parted.
$ sudo parted
GNU Parted 3.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) resizepart 3 100%
(parted) quit
Information: You may need to update /etc/fstab.
Extend the logical volume.
$ sudo lvextend -r -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
Size of logical volume ubuntu-vg/ubuntu-lv changed from <31.00 GiB (7935 extents) to 1.03 TiB (270079 extents).
Logical volume ubuntu-vg/ubuntu-lv successfully resized.
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 4, new_desc_blocks = 132
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 276560896 (4k) blocks long.
Confirm resize is complete.
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1T 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1G 0 part /boot
└─sda3 8:3 0 1T 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 1T 0 lvm /
🎉