In fact, record this is to leave to see for themselves.
Every time with a check, already old what things can not remember.
This query is from here (VirtualBox modified UUID implementation of virtual hard disk copy) to get help, thanks.
An error occurs when VirtualBox uses an already used (. VDI) virtual hard disk file directly:
You can resolve this issue by modifying the file's UUID every time you use the virtual hard disk file.
Use the following command:
" d:\Virtual Machine\virtualbox\disk\centos 7.3.vdi "
The path of "C:\Program Files\oracle\virtualbox>vboxmanage.exe" is determined by your own system, the input process can use the "tab" key to avoid input errors.
The "Internalcommands sethduuid" section is the parameter of the VBoxManage.exe command, which can be written.
where ""d:\Virtual machine\virtualbox\disk\centos 7.3.vdi"section is the location of the virtual hard disk files. If there are spaces in the file name or path, use half-width double quotation marks.
In this way, the virtual hard disk files that are installed with the system and software can be used many times directly after the backup.
VirtualBox modifying UUID to implement virtual hard disk reuse