Fix External Display Support on MacBookPro10,1

2026-06-19 13:50:00 +10:00 · 2021-03-09 13:56:39 -07:00
parent b84f701ff4
commit 41091a3967
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+# How to download and build macOS Installers
+
+* [Downloading](#downloading)
+* [Building](#building)
+
+This doc is centered around downloading and writting the macOS installer to a USB. If you're already familair with how to do this, you can skip.
+
+* Note: 16GB+ USB will be required for the installer
+
+## Downloading
+
+The simplest way to download macOS installs would be to use installinstallmacos:
+
+```sh
+mkdir ~/macOS-installer && cd ~/macOS-installer && curl -O https://raw.githubusercontent.com/munki/macadmin-scripts/main/installinstallmacos.py && sudo python installinstallmacos.py
+```
+
+![](../images/munki.png)
+
+As you can see, we get a nice list of macOS installers. If you need a particular versions of macOS, you can select it by typing the number next to it. For this example we'll choose 10:
+
+![](../images/munki-process.png)
+
+This is going to take a while as we're downloading the entire 12GB+ macOS installer.
+
+Once finished, you'll find in your `~/macOS-Installer/` folder a DMG containing the macOS Installer, called `Install_macOS_11.1-20C69.dmg` for example. Mount it and you'll find the installer application.
+
+* Note: We recommend to move the Install macOS.app into the `/Applications` folder, as we'll be executing commands from there.
+* Note 2: Running Cmd+Shift+G in Finder will allow you to easily jump to `~/macOS-installer`
+
+![](../images/munki-done.png)
+
+![](../images/munki-dmg.png)
+
+## Building
+
+Now we'll be formatting the USB to prep for both the macOS installer and OpenCore. We'll want to use macOS Extended (HFS+) with a GUID partition map(Using GUID is important for the patcher). This will create two partitions: the main `MyVolume` and a second called `EFI` which is used as a boot partition where your Mac's firmware will check for boot files.
+
+* Note: By default, Disk Utility only shows partitions – press Cmd/Win+2 to show all devices (alternatively you can press the View button)
+
+![Formatting the USB](../images/format-usb.png)
+
+Next run the `createinstallmedia` command provided by [Apple](https://support.apple.com/en-us/HT201372). Note that the command is made for USB's formatted with the name `MyVolume`:
+
+```sh
+sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
+```
+
+* Note: You can also replace the `createinstallmedia` path with that of where your installer's located (same idea with the drive name).
+
+* ![](../images/createinstallmedia.png)
+
+# Once finished, [return to the README to finish up](../README.md)