Error yang muncul
Cannot register the hard disk ‘/media/Data/virtual/virtualbox/Win7/Snapshots/{a835be7f-06cd-4381-a955-38fa9a397d8c}.vdi’ {a835be7f-06cd-4381-a955-38fa9a397d8c} because a hard disk ‘/home/tommy/VirtualBox VMs/Win7/Snapshots/{a835be7f-06cd-4381-a955-38fa9a397d8c}.vdi’ with UUID {a835be7f-06cd-4381-a955-38fa9a397d8c} already exists.
solusinya
VBoxManage internalcommands sethduuid NamaFileHardisk
contoh
$ VBoxManage internalcommands sethduuid Win7/Snapshots/\{a835be7f-06cd-4381-a955-38fa9a397d8c\}.vdi UUID changed to: 15b555fb-8394-4312-bf4d-0cde764c2d00
Error diatas muncul karena anda memindahkan lokasi hardisk virtualbox ke tempat lain.