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Changes for page Apple

Last modified by Drunk Monkey on 2022-12-08 12:01
From version 8.1
edited by Drunk Monkey
on 2021-11-03 08:42
Change comment: There is no comment for this version
To version 8.2
edited by Drunk Monkey
on 2021-11-03 08:51
Change comment: There is no comment for this version

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2 2  {{toc start="2" depth="5" numbered="true"/}}
3 3  {{/box}}
4 4  
5 -== Downgrade Big Sur (11.x) to Catalina (10.15) via a 11.x Host Computer ==
5 +== Downgrade Big Sur (11.x) to Catalina (10.15) via an 11.x Host Computer ==
6 6  
7 -1. download the Catalina installer for 10.15 ( [[https:~~/~~/support.apple.com/en-in/HT201372>>https://support.apple.com/en-in/HT201372]] ) from the apple app store (8GB). After downloading, the OS will try to run the installer and fail giving an error message. Just dismiss the dialog window and continue on.
8 -1. "createinstallmedia" via the terminal window:
7 +{{warning}}
8 +These instructions will completely erase the files on computer you are installing to with no chance of recovery. Make sure you have backed up and saved everything you need before you start this process.
9 +
10 +We will also use and erase the USB drive we will use to create the install media. Again, make sure it doesn't contain anything valuable before you start.
11 +{{/warning}}
12 +
13 +1. Start with a 16GB USB drive. This USB will be erased. In our example, the USB is labelled "MyVolume"
14 +1. Download the Catalina installer for 10.15 ( [[https:~~/~~/support.apple.com/en-in/HT201372>>https://support.apple.com/en-in/HT201372]] ) from the apple app store (8GB). After downloading, the OS will try to run the installer and fail giving an error message. Just dismiss the dialog window and continue on.
15 +1. Run "createinstallmedia" via the terminal window to create the installer:
9 9  11. ##sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia ~-~-volume /Volumes/MyVolume##
10 -[[image:macos-big-sur-terminal-create-bootable-installer.jpg]]
17 +[[image:macos-big-sur-terminal-create-bootable-installer.jpg||height="50%" width="50%"]]
11 11  
12 12  ====== ~[[[top>>doc:WebHome]]] ======
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