![]() ![]() Select Boot Maintenance Manager and click. You'll be brought into an EFI text-mode GUI. I was able to fix the UEFI problems as follows (credit to the VirtualBox forum): After manually directing EFI to boot into macOS for the first time, macOS automatically fixed up the boot partition, and subsequent boots worked properly. In my case, after installing macOS into a virtual machine according to these instructions (running the macOS installer from an ISO image downloaded from Apple), on first boot, the boot partition was present, but unconfigured (probably no boot image installed). By now you may have surmised boot.efi is an EFI standard filename that lives at an EFI standard path in a disk partition, and it contains OS-specific boot firmware (e.g., Windows, Linux, etc. Ultimately, the objective is provide a boot partition that contains a macOS boot.efi. Your immediate objective is to help EFI locate and execute OS-specific boot firmware. However, assuming you have a macOS recovery partition on that disk, it should contain a copy of boot.efi (macOS-specific boot firmware) that you can boot into the OS with. Don't fix Ownership on third -party USB3 controllers.UEFI requires intervention, because the EFI firmware on the Mac's motherboard can’t find valid OS-specific EFI boot firmware in the standard location on disk.Recommended documentation in english by 5T33Z0 Saving boot.log in OS and preboot.log from GUI by typing F2.Default boot after timeout, customizable GUI, saving screenshots from GUI typing F10.Set NVRAM variables for different purpose.ACPI tables loading (SSDT-xx, APIC, BOOT, SLIC, SLIT, SRAT, UEFI.).CPU turbo and P- and C-states generator.HDA injector and Ethernet builtin injector.USB fix (LegacyOff, Ownership, Builtin, clock-id) up to USB 3.0.Graphics Properties Injector for ATI, NVidia and Intel for wide range of supported cards.Customizable RestartFix and Sleep/Wake fixes and PCIRootUID value.DSDT patching on the fly by fixes and by patterns.Custom DSDT will be loaded from booted partition or from EFI folder.ACPI will be corrected to standard 4.0.SMBIOS will be corrected to standard 2.6.UUID written into ist will be the same as in OS.With Clover you may restart into other OS from Startup Disk pane in System preferences.Mostly Clover do automatic detection of hardware and set all properties by default.It's EFI bootloader provides RuntimeServices for OS that impossible for Legacy Bootloaders.Boot into macOS 10.xx, Windows EFI and Linux EFI.As a result, you will be able to effortlessly update the bootloader, to change the Clover theme, or to adjust the number of log files and backups Clover EFI should keep.Ĭlover EFI is a great tool to have around if you are running macOS on a non-Apple computer that integrates a UEFI motherboard: the installer replaces the default bootloader, integrates powerful drivers, and allows you to customize both the macOS behavior and appearance. Powerful software solution for booting a custom macOS installation, and improving its performanceįurthermore, Clover EFI also allows you to integrate a custom preference pane in your System Preferences window. Noteworthy is that you have the option to personalize the bootloader’s installation: you can choose to install Clover EFI for UEFI booting only, you can install Clover EFI in the ESP, you can apply a custom theme, decide which drives or scripts should be deployed, and so on. Naturally, you will have to provide the credentials for your computer’s admin account. The Clover EFI software comes with its own installer package, which means that the entire process is reduced to simply following the on-screen instructions. Clover is open source based on different projects: Clover, rEFIt, XNU, VirtualBox. ![]()
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