Note: once the image resized it should not able reduce it
Convert VDI to QCOW2 image
sudo qemu-img convert -O qcow2 example.vdi example1.qcow2 -p
Resize the image
qemu-img resize siemmaster.qcow2 +10G
Boot the Image
do the resize the image
resize2fs /dev/sda1
Check the disk space of the image
df -h
Convert qcow2 image ti VDI
sudo qemu-img convert -O vdi example1.qcow2 example_converted.vdi -p
