What should I do if I can’t use vboxmanage after changing the UUID?

If you have trouble using a VirtualBox virtual machine after modifying its UUID, you can try the following solution:

1. Back up the virtual machine: Before any operation, make sure to backup all critical data and configuration files of the virtual machine.
2. To restore the original UUID using the VBoxManage command: Open a terminal or command prompt window, navigate to the directory where VBoxManage is located within the VirtualBox installation directory. Then, run the following command to restore the virtual machine’s original UUID:

VBoxManage internalcommands sethduuid <虚拟机文件的路径>

Please replace with the actual path to your virtual machine file.

1. Restore virtual machine configuration: If the above command does not solve the issue, you can try restoring the virtual machine using a backup configuration file. Replace the current virtual machine configuration file with the backup file, making sure the path and file name match the original configuration file.
2. Create a new virtual machine: If the above methods fail to resolve the issue, you can try creating a new virtual machine and importing the original virtual hard disk file from a backup. Then, you can match the other settings and configurations with the original virtual machine.

Please note that changing the UUID of a VirtualBox virtual machine is an advanced operation and should be handled with caution. It is recommended to thoroughly understand the relevant knowledge and backup critical data before performing such an operation to prevent data loss or damage.