Error: Cannot register the hard disk 'slave-template.vdi' {43fdc3ab-a37e-4508-8355-3333c43ca395} because a hard disk 'template.vdi' with UUID {43fdc3ab-a37e-4508-8355-3333c43ca395} already exists
Virtual Box for Mac, encountered and error saying imported vdi file existed with spesific UUID. Error when trying to import existing .vdi harddisk files in Virtual Box. Reason is because each vdi (harddisk) is tag with a unique UID, thus can't be replicated. BUT, you can clone it. OOn Mac OS X, Virtual Box comes with a cloning utility. Open Terminal and enter below: VBoxManage clonehd <old.vdi> <new.vdi> and it wil be clone accordingly. :) /alak