I really like Boxes. It’s so much easier to use than VirtualBox.
But (here’s the but) I’d like to see dynamic disks. Supposedly VBox had it, but I could never get it to work. Maybe Boxes has it “but” it’s not working for me.
You can easily expand the disk image when needed:
> virsh list --all
Id Name State
---------------------------
- fedora shut off
> virsh start fedora
Domain 'fedora' started
> virsh domblkinfo fedora --all --human
Target Capacity Allocation Physical
------------------------------------------------
vda 30.000 GiB 22.060 GiB 23.735 GiB
sda - - -
> virsh blockresize fedora vda 40G
Block device 'vda' is resized
Then it depends on the guest to utilize the added space.
You can increase the size in the settings; you just have to do it while the guest is off.
Thank you!