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January 23, 2021 / HowTo

Shrink VDI (virtualbox)

Inside of the VM – open a terminal:

dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k ; rm /var/tmp/bigemptyfile

Close VM and open a terminal on your host

VBoxManage modifymedium --compact /path/to/thedisk.vdi

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