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Fast Boot, Secure Boot, VT-d (can be enabled if DisableIoMapper is set), CSM. Enable: UEFI Boot, AHCI, VT-x, Above 4G Decoding. Installation Steps: Boot from the USB drive. Select "Install macOS" in the OpenCore menu.
EFI/ ├── BOOT/ │ └── BOOTx64.efi └── OC/ ├── ACPI/ ├── Drivers/ ├── Kexts/ ├── Resources/ ├── Tools/ ├── OpenCore.efi └── config.plist Use code with caution. Essential Driver and Kext Files
Move the downloaded BaseSystem.dmg and BaseSystem.chunklist files into this new folder.
While standard guides typically use an (downloading a small 500MB recovery file and fetching the rest of macOS during installation), an offline installer is preferred for users with unstable internet or those who want to avoid repeated downloads . Key Findings & Review
: Delete all tools unless you specifically need OpenShell.efi for debugging. Adding Required Kexts and Drivers
Extract the ZIP file and run gibMacOS.bat as an Administrator.
: The latest stable release from the Acidanthera GitHub repository.
Run the command for your desired macOS version. For example, for Monterey: python macrecovery.py -b Mac-FFE5EF8117AD88F1 -m 00000000000000000 download
: Tools to format and write images to the USB drive.
The Ultimate Guide to Creating an OpenCore Offline Installer on Windows
Download the repository from GitHub as a ZIP file and extract it. Double-click gibMacOS.bat to launch the script.
With the USB drive fully loaded with the full macOS installer image and a tailored OpenCore EFI configuration, you are ready to install. Shut down the target computer. Enter the BIOS/UEFI settings. :
Fast Boot, Secure Boot, VT-d (can be enabled if DisableIoMapper is set), CSM. Enable: UEFI Boot, AHCI, VT-x, Above 4G Decoding. Installation Steps: Boot from the USB drive. Select "Install macOS" in the OpenCore menu.
EFI/ ├── BOOT/ │ └── BOOTx64.efi └── OC/ ├── ACPI/ ├── Drivers/ ├── Kexts/ ├── Resources/ ├── Tools/ ├── OpenCore.efi └── config.plist Use code with caution. Essential Driver and Kext Files
Move the downloaded BaseSystem.dmg and BaseSystem.chunklist files into this new folder.
While standard guides typically use an (downloading a small 500MB recovery file and fetching the rest of macOS during installation), an offline installer is preferred for users with unstable internet or those who want to avoid repeated downloads . Key Findings & Review
: Delete all tools unless you specifically need OpenShell.efi for debugging. Adding Required Kexts and Drivers
Extract the ZIP file and run gibMacOS.bat as an Administrator.
: The latest stable release from the Acidanthera GitHub repository.
Run the command for your desired macOS version. For example, for Monterey: python macrecovery.py -b Mac-FFE5EF8117AD88F1 -m 00000000000000000 download
: Tools to format and write images to the USB drive.
The Ultimate Guide to Creating an OpenCore Offline Installer on Windows
Download the repository from GitHub as a ZIP file and extract it. Double-click gibMacOS.bat to launch the script.
With the USB drive fully loaded with the full macOS installer image and a tailored OpenCore EFI configuration, you are ready to install. Shut down the target computer. Enter the BIOS/UEFI settings. :