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Hi, May I know how do I create a bootable USB mac os installer in Mac OS sierra macbook ? I trying running command “sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia –volume /Volumes/MyVolume –applicationpath /Applications/Install\ macOS\ Sierra.app” but showing command not found even though I using admin access. I did try disk creator and transmac trial version but none of them working fine on these old macbook with os x lion. I do face the problem where the old macbook trying to reinstall mac os lion back by default do show the item is not available. That the reason I am trying to install back by bootable usb mac os installer. Thank you.
You need to have downloaded Sierra installer. In your Applications folder there should be an “Install OS X Sierra” Application. If not you need to download it from the Apple App store, but it is not available any more. If you got it earlier, it may or may not be listed under “purchases”.
