HT201372: Create a bootable installer for OS X

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SusanG249

Q: /Applications/Install OS X Yosemite.app does not appear to be a valid OS installer application when creating a bootable drive?

So, I'm trying to create a bootable drive from a Mac OS Extended (journaled) 16GB flash drive.

I enter this command in terminal:

sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Yosemite.app --nointeraction


I get this response:

/Applications/Install OS X Yosemite.app does not appear to be a valid OS installer application.

 

The drive is titled "Untitled".

And a valid copy of "Install OS X Yosemite.app" is in my applications folder.

 

I'm doing this from a macbook air running Yosemite 10.10.4

So what's the problem?

Posted on Aug 14, 2015 9:41 AM

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Q: /Applications/Install OS X Yosemite.app does not appear to be a valid OS installer application when creating a bootable drive?

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