修改VM VirtualBox里error: UUID

1，生成hyperledger

2，用copy得虚拟机替换生成得虚拟机；just vmdk文件

3，报错，需要修改uudi

向VM VirtualBox 里copy既存虚拟机启动时出现如下错误对应方法：

There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["startvm", "acc3a6d1-9cac-401b-8a3a-242d0e756019", "--type", "headless"]

Stderr: VBoxManage.exe: error: UUID {067819c9-6318-4fbc-94a8-e8c782e87666} of the medium 'C:\Users\xuegao\VirtualBox VMs\hyperledger\packer-virtualbox-iso-1485447123-disk1.vmdk' does not match the value {75b4f1e1-0bbc-4643-bcef-e23aaa667789} stored in the media registry ('C:\Users\xuegao\.VirtualBox\VirtualBox.xml')
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component MediumWrap, interface IMedium

对应：找到【VirtualBox】安装目录

用如下命令重命名该虚拟机得UUID:

C:\Program Files\Oracle\VirtualBox>VBOXMANAGE.EXE internalcommands sethduuid "C:\Users\xuegao\VirtualBox VMs\hyperledger\packer-virtualbox-iso-1485447123-disk1.vmdk" 75b4f1e1-0bbc-4643-bcef-e23aaa667789

===============================================

UUID changed to: 75b4f1e1-0bbc-4643-bcef-e23aaa667789

ps：有些同学直接修改，可以看到下图说明是不可以得。