Adding more space to virtual machine by adding new disk and expanding using LVM

Daily task, which comes as daily routing, to extend the disk space:

Switch off the machine

Open VM properties in Oracle VirtualBox Manager, Storage,

Click [Create]

Name the disk accordingly to be consistent with other drives. Ensure that disk is saved nearby the VM itself. In my case, I am extending root partition for 50 GB.

After new disk is created, choose it double-clicking it.

Should end by seeing new disk in the virtual machine properties under 'Storage' list, attached to proper controller, 'SATA' - in my case.

Confirm with [OK]

Power on the machine

List disks with. New disk should be visible.

lsblk

Follow LVM Disk Extension guide to finalize extension.