virtualbox.org

Hi!

I'm a VirtualBox beginner... I have earlier used M$ VirtualPC and following works fine in there:

1) I have made a master OS file, lets call it master_os1.vdi

2) I'd like to use that file for other virtual systems as well, so I have copied and renamed it to master_os2.vdi

3) If I try to build up a new machine and try to use "master_os2.vdi" as a HD, then there will be shown followin error:

Cannot register the hard disk 'C:\master_os2.vdi' with UUID {xxxxx1} because a hard disk 'C:\master_os1.vdi' with UUID {xxxxx1} already exists in the media registry ('C:\Documents and Settings\user1\.VirtualBox\VirtualBox.xml').

4) What should I do to get master_os2.vdi to work? I don't want to start installations always from beginning...

Thank you very much of any kind of help!

Instead of just changing the name you should clone the original drive. That way it will generate a new UUID. See section 8.16. VBoxManage clonehd of the users guide.
Or if you would like a program that will do this for you check this out CloneVDI Tool