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Can't create a macOS Sequoia bootable USB

Hello.


I'm on a MacBook Pro M3 Max with macOS Sonoma installed.

I have a 32Gbs USB and downloaded macOS Sequoia from the Mac App Store.


When the download ended and right before the installation window opens, I receive a message saying that macOS Sequoia installer couldn't be found. I actually have the file on my Applications folder and it weights 58 MBs?!?!?!


I tried using the following command (taken from the Apple Website):

sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume


But my Terminal tells me that '/Applications/Install macOS Sequoia.app does not appear to be a valid OS installer application.'


Why is this happening? Basically I can't Install macOS Sequoia nor can I create a bootable USB drive.


Is this happening to anyone else? How can I solve this?


Thank you.

MacBook Pro 14″, macOS 14.7

Posted on Sep 18, 2024 4:10 AM

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Question marked as Top-ranking reply

Posted on Sep 18, 2024 4:21 AM

When downloading the installer for a newer version than you have installed, you don’t get a full installer.

You may be able to download a full installer with Terminal.

softwareupdate —-list-full-installers

If There is a 15 version listed, then

softwareupdate —-fetch-full-installer —-full-installer-version 15.0

If the version is different from 15.0, change that to match the version available.

17 replies

Can't create a macOS Sequoia bootable USB

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