Some days ago I wanted to increase a vdi disk image like written in a previous article. But it was not working. I got something like `... not implemented yet!`
I tried to increase the disk image to 40GB like
VBoxManage modifyhd VIRTUALHOST.vdi --resize 40000
And I got the following error message:
Progress state: VBOX_E_NOT_SUPPORTED VBoxManage: error: Resize medium operation for this format is not implemented yet!
The reason for that error is: I have created a new virtual host with a static disk. Image resizing is only supported for dynamic images.
1) create a clone of the image which creates a "dynamic image" clone
VBoxManage clonehd VIRTUALHOST.vdi VIRTUALHOST-clone.vdi
2) resize the clone image
VBoxManage modifyhd VIRTUALHOST-clone.vdi --resize 40000
3) change boot disk in VirtualBox settings view.
4) Do the image adaption in the started virtual host itself (windows, linux or whatever).