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When I enter Y after the prompt, I get a "Command Not Found" message. What do I do?

When I enter Y after the prompt, I get a "Command Not Found" message. What do I do?


MacBook Pro (2020 and later)

Posted on Jun 17, 2022 10:14 AM

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Question marked as Top-ranking reply

Posted on Jun 17, 2022 11:30 AM

Obviously you are trying to make a bootable flash installer for Monterey, right?


Do you have "Install macOS Monterey.app" in /Applications? If you have macOS Extended (GUID) formatted "Untitled" USB flash drive on the Desktop, then this Terminal command should work and prompt to erase the drive and also make "Y" prompt at some stage. (You can use other names for the flash drive but it must be the same as in the end of the command).


sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled


How to create a bootable installer for macOS - Apple Support


5 replies
Question marked as Top-ranking reply

Jun 17, 2022 11:30 AM in response to Jeffcisp

Obviously you are trying to make a bootable flash installer for Monterey, right?


Do you have "Install macOS Monterey.app" in /Applications? If you have macOS Extended (GUID) formatted "Untitled" USB flash drive on the Desktop, then this Terminal command should work and prompt to erase the drive and also make "Y" prompt at some stage. (You can use other names for the flash drive but it must be the same as in the end of the command).


sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled


How to create a bootable installer for macOS - Apple Support


When I enter Y after the prompt, I get a "Command Not Found" message. What do I do?

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