Changing the disk size in lima.yaml should resize the disk

[jandubois]

Just running limactl edit does not change the actual disk image, I guess one has to run qemu-img manually (for now)

qemu-img resize ~/.lima/almalinux-8/diffdisk 30G

qemu-img info ~/.lima/almalinux-8/diffdisk

After that, it seems to have done the rest of the work on next start (changed it in the lima.yaml, to disk: "30GiB").

Originally posted by @afbjorklund in #1446 (reply in thread)

Of course it should only allow increasing the disk size, as reducing it will corrupt the existing partition.

[afbjorklund]

When doing the qemu-img resize, it does require a special option before attempting to shrink an image.

       `When shrinking images, the "--shrink" option must be given. This informs qemu-img that the user acknowledges all loss of data beyond the truncated image's end.`

Most of the work for these commands to work, has to be done inside the guest image (partioning/resize2fs)

Currently there might be some scripts in place, that will resize an ext4 partition to use the new space available.