[Software usage] upgrade virtualbox Virtual Machine to 4.0 new storage format [Reproduced]

In fact, you can follow this step to perform Migration Operations on common virtual machines.

Organized from: http://terrywang.net/archives/1136

1. Create a new virtual machine. It is best to use an approximate or identical configuration with source.
2. Copy the vdi of the source vm from the harddisk directory to the new machine directory (4.0 and later are all under the default machine folder, for example, Linux is ~ /Virtualbox VMS), overwrite existing blank VDI
3. Use vboxmanage showhdinfo to obtain the uuid of VDI (the uuid of the overwritten VDI does not match the uuid of the virtual disk in the virtual machine configuration file)
4. Edit the. vbox configuration file of the new virtual machine, update the uuid of harddisk (two locations), and save
5. Complete. Start the VM.

Of course, you can also use the export/import function provided by virtualbox:

1. File/export Appliance
2. Delete the virtual machine in your ubalbox
3. File/import Appliance

All configurations are retained completely, and their names do not conflict.