mpack Site Moderator Posts: 34773 Joined: 4. run the disk through CloneVDI with the "Keep UUID" and "Compact" options set.
If you made a one-time mistake that causes a VDI to balloon to full size then run a compaction step, e.g. Most of us let a VDI find its own level, choosing a conservative capacity to begin with (neither too large nor too small). I say allegedly because I've never bothered to try that feature myself very few others have reported that they have, and I have no way to verify their results. When the guest OS issues a trim command to the controller, VirtualBox is supposed to compact the drive dynamically. The resize process should finish right after you click the enter button to execute the command.
If you are using a Linux operating system as a host, open the terminal and type the following command to resize VDI: VBoxManage modifymedium '/pathtovdifile' -resizesimulate an SSD), and you'll also need to be using a guest OS that enables trim and is aware that some drives support trim. Method 2: Increase VirtualBox disk space using Linux command line. There is allegedly something you can do to achieve this: first mark the drive as "nonrotational" in the VM settings (i.e. VirtualBox has no way of knowing that a guest OS filesystem considers that sector no longer needed, because the guest usually doesn't know how to unwrite or delete a disk sector. There is no automatic "dynamic deallocation". when a sector is written to for the first time. VirtualBox disks do "dynamic allocation", which means they allocate host disk space only when host disk space is needed. OldGeezer916 wrote:I guess all I can do is wait for the dynamic disk to adjust for all the empty space on the VB machine.
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