- Joined
- Jul 22, 2018
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- Motherboard
- Supermicro X11SPA-T
- CPU
- Intel Xeon W-3275 28 Core
- Graphics
- 2xAMD RX 580 8GB
- OS X/macOS
- 13.x
- Bootloader
- OpenCore (UEFI)
- Mac
- Mac mini
- MacBook Pro
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How to use macOS Internet Recovery using OpenCore
Method #1: Using macOS
STEP 1: Download macOS (aka Recovery Image)
Before you start using the Internet Recovery feature, you'll need to have the exact Recovery image of the target OS you want to install. To download the recovery image, follow the steps below.
1. Download OpenCore Pkg from the downloads section of this forum.
2. Extract the downloaded file to your Desktop.
3. Open Terminal and move into the OpenCore directory using
Code:
cd Desktop/OpenCore-0.X.X-RELEASE/Utilities/macrecovery
NOTE:
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4. Depending on the macOS version you need (See Recovery Table below), type the command.
Recovery Table
OS Version | Command |
---|---|
OS X Lion | ./macrecovery.py -b Mac-C3EC7CD22292981F -m 00000000000F0HM00 download |
OS X Mountain Lion | ./macrecovery.py -b Mac-7DF2A3B5E5D671ED -m 00000000000F65100 download |
OS X Mavericks | ./macrecovery.py -b Mac-F60DEB81FF30ACF6 -m 00000000000FNN100 download |
OS X Yosemite | ./macrecovery.py -b Mac-E43C1C25D4880AD6 -m 00000000000GDVW00 download |
OS X El Capitan | ./macrecovery.py -b Mac-FFE5EF870D7BA81A -m 00000000000GQRX00 download |
macOS Sierra | ./macrecovery.py -b Mac-77F17D7DA9285301 -m 00000000000J0DX00 download |
macOS High Sierra | ./macrecovery.py -b Mac-7BA5B2D9E42DDD94 -m 00000000000J80300 download |
macOS Mojave | ./macrecovery.py -b Mac-7BA5B2DFE22DDD8C -m 00000000000KXPG00 download |
macOS Catalina | ./macrecovery.py -b Mac-CFF7D910A743CAAF -m 00000000000PHCD00 download |
macOS Big Sur | ./macrecovery.py -b Mac-E43C1C25D4880AD6 -m 00000000000000000 download |
5. Once the download is completed, you'll see something like below
Code:
Downloading 694-44177...
Saving http://oscdn.apple.com/content/downloads/43/08/002-55353/wjqymtilqz139hpcx4lu2i2h5ndrmuydno/RecoveryImage/BaseSystem.dmg to BaseSystem.dmg...
Download complete!
Saving http://oscdn.apple.com/content/downloads/43/08/002-55353/wjqymtilqz139hpcx4lu2i2h5ndrmuydno/RecoveryImage/BaseSystem.chunklist to BaseSystem.chunklist...
Download complete!
Verifying image with chunklist...
Image verification complete!
You can find
BaseSystem.dmg
and BaseSystem.chunklist
in OpenCore/Utilities/macrecovery directory.STEP 2: Create Bootable Recovery Drive
Once you have obtained the recovery image, the next step is to create a bootable Recovery Drive. To create a bootable Recovery Drive, follow the steps below.
1. Insert your USB Flash Drive (less than 64GB ) into your Mac.
2. Open Disk Utility. The Disk Utility is located at /Applications/Utilities/Disk Utility
2. Select your USB Flash Drive in the left pane and click on Erase button, at the top and a popup will appear.
3. Under Name type EFI
4. Under Format select MS-DOS (FAT)
5. Under Scheme select Master Boot Record, and click on Erase.
6. When done, click on Done and close Disk Utility.
7. Now open your USB Flash Drive and create a folder named
com.apple.recovery.boot
8. Copy
BaseSystem.dmg
and BaseSystem.chunklist
downloaded in STEP #1 to the above created directory.9. Copy your created OpenCore EFI for your target hardware to the root of the USB Flash Drive.
NOTE:
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STEP 3: Booting into macOS Recovery
Now, as you have the Bootable Recovery Drive, you can boot into macOS Recovery. To boot into macOS Recovery, follow the steps below.
1. Turn on your target System.
2. Boot to Boot Menu.
3. Select your USB Flash Drive with the UEFI Prefix and press enter to boot.
4. When at OC Boot picker, select the Recovery and press enter to boot and the installer will load in a while.
NOTES:
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