![]() ![]() Also hitting "AnyKey" during boot, as suggested elsewhere (very funny), did not help. I found hints to press F12 or fn-F12 "during boot" for getting into the shell, but I tried it several times to no avail. While preparing the High Sierra VM, I had a hard time getting out of the UEFI shell and selecting the correct boot.efi in order to boot the system.īut now I want to get into the UEFI shell, then to the boot options. So each time I start the update from macOS, the reboot gives me an unaltered system. Unfortunately, the UEFI boot settings of VirtualBox seem to overrun the macOS settings and the system always boots the regular macOS partition. If you wish to adjust any of the settings, click Customize Settings to specify non-default values for memory (RAM), CPU, hard disk size, etc. ![]() Ensure Operating System is set to Apple Mac OS X and Version is set to OS X 10.7 64-bit then click Continue. ![]() The reason for that, as far as I understood, is that the macOS update is installed onto the recovery partition of the VM hard drive and the VM should boot from this partition to finish the update. The drop-down menu changes to Install Mac OS X Lion. The VM runs fine, but I am not able to update the guest OS from 10.13.4 to 10.13.6. I am running VirtualBox 6.0.10 on an iMac (Mojave) and I prepared a macOS High Sierra VM from the ground up with VirtualBox. ![]()
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