mirror of
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35 lines
2.0 KiB
Markdown
35 lines
2.0 KiB
Markdown
Apple Models
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===========
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Various information about Apple hardware
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([current database status](https://github.com/acidanthera/OpenCorePkg/blob/master/AppleModels/DataBase.md)).
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## Improving database
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To add a new hardware board, please create a file in DataBase
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directory, and then run `./update_generated.py`. It should not
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output anything and return zero code.
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To install PyYAML on macOS use the following commands:
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```
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sudo -H python3 -m pip install pyyaml
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```
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## Unpacking firmware
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To update the database you can either get the information from firmware images or from
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running hardware. There currently are two places for firmware images: `FirmwareUpdate.pkg`
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for generic models and `BridgeOSUpdateCustomer.pkg` for T2 models (the entire restore list
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is available at [mesu.apple.com](https://mesu.apple.com/assets/bridgeos/com_apple_bridgeOSIPSW/com_apple_bridgeOSIPSW.xml))
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To use them do as follows:
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1. Visit suitable update catalogue by filling the OS versions (e.g. [this](https://swscan.apple.com/content/catalogs/others/index-13seed-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz) one for macOS 13 beta).
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Note: This catalogue does not include `FirmwareUpdate.pkg` for macOS 11+. You can extract firmware images for generic models from `Install macOS Big Sur.app` (or newer).
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2. Download most recent `FirmwareUpdate.pkg` and `BridgeOSUpdateCustomer.pkg`.
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3. Extract `scap` and `fd` files from `FirmwareUpdate.pkg` and use them as is.
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4. Extract `/usr/standalone/firmware/bridgeOSCustomer.bundle/Contents/Resources/UpdateBundle.zip`
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file from `BridgeOSUpdateCustomer.pkg` and unpack it.
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5. After unpacking `UpdateBundle.zip` go to `boot/Firmware/MacEFI` directory and unpack im4p files.
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You can use [img4](https://github.com/xerub/img4lib), [img4tool](https://github.com/tihmstar/img4tool), or our dedicated [MacEfiUnpack](https://github.com/acidanthera/OpenCorePkg/blob/master/Utilities/MacEfiUnpack/MacEfiUnpack.py). For example, `for i in *.im4p ; do ./MacEfiUnpack.py "$i" ; done`
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