Creating a macOS Sierra Bootable USB Thumbdrive

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Creating a macOS Sierra Bootable USB Thumbdrive

Hello! I'm attempting to create a bootable USB for macOS Sierra, and the published instructions aren't working. I've made several attempts and I cannot get the process to work.

I downloaded the macOS Sierra InstallOS.dmg from Apple.com containing the InstallOS.pkg. I installed the package and now have "Install macOS Sierra.app" in my Applications folder. My USB thumbdrive is named MyVolume.

Macintosh HD > Applications > Install macOS Sierra

What Terminal command do I need to use to create a bootable USB?

Thank you in advance!

Earlier Mac models

Posted on Mar 20, 2023 8:13 AM

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Answer 1

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BDAqua

Level 10

239,507 points

Mar 20, 2023 1:12 PM in response to pictobox

Sierra won’t install to SSD, thanks to Eau Rouge…

https://discussions.apple.com/thread/251358124?answerId=252770772022#252770772022

Open Terminal (Applications/ Utilities) now copy and paste this command into the Terminal window,

sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist

press return

enter your password

press return

Now paste in the createinstallmedia command for Sierra where MyVolume can be replaced with the name of your USB stick

If your USB name has more than one word separated by spaces you would need to type it in as

/The\ USB\ Name

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

press return

follow the prompts

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