Right-click the virtual machine, and click the Settings menu item in the popup menu list.

To fix this issue, you should use another 64bit guest version in the VirtualBox virtual machine, and enable Use Host I/O Cache in the Storage tab to follow the below steps.

When you start the VirtualBox virtual machine to install macOS Mojave, you may see a gray screen at the beginning, and it is stuck there and can not continue.

How To Fix Get Stuck With Gray Screen Issue At The Beginning Of macOS Mojave Installation Process.

But one thing you should take care of is the physical HDD cable, you should make sure the HDD cable is plugged in tightly.

If you find this issue when you reinstall macOS on a Physical MacBook, the above method also makes sense.

Tips When No Disk To Select Issue Happen On Physical MacBook. Now you can select Reinstall macOS or Install macOS Big Sur to install it again, and you can select the virtual disk partition during the installation process now.ģ. Then close the Disk Utility window to go back to the macOS Utilities window.

When the creating partition process is complete, click the Done button to finish it.

Input the partition name, select partition format Mac OS Extended ( Journaled ) in the format drop-down list, and click Erase button at bottom of the pop-up window to start creating the partition.

Select the virtual disk in Disk Utility left panel, then click Erase button at the top bar, it will pop up a window.

Then select Disk Utility in the macOS Utilities window, and click the Continue button.Click Install macOS High Sierra -> Quit Install macOS menu item at the virtual machine window top-left corner to quit the Install macOS High Sierra wizard.The reason for this issue is that there does not has partition on the virtual disk, so we should first create a partition on the virtual disk, then you can select the virtual disk partition to install mac os. How To Fix No Disk To Select Error When Install Mac OS On Virtual Machine.

Install os x virtualbox