How to resize a VirtualBox vmdk file [closed]

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I’ve run out of space on a virtual machine disk which is a vmdk and need to resize the virtual image. Resizing with the command 

vboxmanage modifyhd Machine-disk1.vmdk --resize 30720

gives the error 

Progress state: VBOX_E_NOT_SUPPORTED
VBoxManage: error: Resize hard disk operation for this format is not implemented yet!

How can I resize a vmdk image?

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If you want to end having back a vmdk hard disk (maybe you are interested in using the disk in vwmare too), the complete steps are:

VBoxManage clonemedium "source.vmdk" "cloned.vdi" --format vdi
VBoxManage modifymedium "cloned.vdi" --resize 51200
VBoxManage clonemedium "cloned.vdi" "resized.vmdk" --format vmdk

The above will resize the hard disk up to 50GB (50 * 1024MB).

To complete things you need to resize the drive too! To achieve this, you might want to download gparted iso and boot from that iso to resize your drive (select the iso from within the virtualbox settings).

P.S. If your new size is too small, you’ll get the same error even with your new vdi file.

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