About the App. App name: Jettison. App description: jettison (App: Jettison.app). App website: Install the App. Press Command+Space and type Terminal and press enter/return key. Run in Terminal app: ruby -e '$(curl -fsSL /dev/null; brew install caskroom/cask/brew-cask 2 /dev/null and press enter/return key.
Jettison 1.7 - Unplugging external drives without successfully unmounting them first will eventually lead to disk failures and data loss: Jettison is a small Mac app that makes sure all connected drives are unmounted when you put you Mac to sleep, so that you will be able to unplug them directly. Jettison is a lightweight app, available for $1.99, that solves this problem. It lives in your menu bar and detects when your Mac is going to sleep. When it does, it unmounts all your external volumes.
![Jettison Jettison](/uploads/1/2/5/4/125417451/380366532.jpg)
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If the screen prompts you to enter a password, please enter your Mac's user password to continue. When you type the password, it won't be displayed on screen, but the system would accept it.
So just type your password and press ENTER/RETURN key. Then wait for the command to finish. Run: brew cask install jettison Done! You can now use Jettison.