I've increased the size of my VDI using `VBoxManage modifyhd myHDD.vdi --resize 50000`but I can't make the guest recognize and use the new space.

GParted on guest (Linux Mint)
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[![enter image description here](https://i.stack.imgur.com/1NqcC.png)](https://i.stack.imgur.com/1NqcC.png)

VirtualBox Manager on host (Windows 10)
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[![enter image description here](https://i.stack.imgur.com/6UU8H.png)](https://i.stack.imgur.com/6UU8H.png)