Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume -applicationpath /Applications/Install\ macOS\ Sierra.app Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume The Sierra and El Capitan commands show the proper format of this argument.įinally plug your newly created bootable installer drive into your mac, hold the option key, while powering it on.Ĭhoose the 12+GB drive in the boot manager, once booted you can use Disk Utility to fix issues or reinstall the OSĭownload Links and matching Terminal CommandsĬopy and paste this command into terminal and hit return:
Note: If your Mac is using macOS Sierra or earlier, include the -applicationpath argument.
Reinstall dropbox mac install#
Once downloaded use the terminal command below the install link to create a bootable installer. If still no luck but you have access to another mac and an erasable drive with at least 12+GB and formatted for OSX Extended, then follow these instructions:įirst re-name your 12+GB drive “ MyVolume” With no quotes. (a firmware password can block this and some older backups might not have a bootable recovery partition)Ĭ. Hold the Option (alt) key during boot up and see if you can choose your Time Machine recovery disk If that doesn’t work, then can you boot from your Time Machine backup drive? Verify the date and time are current, then close terminal and try to reinstall the OS from the main menu.ī. Then type or copy and paste this and hit the return key: Open Terminal from the pull down menu then copy and paste this command and hit return: MacOS Recovery needs the time/date to be updated to connect to the app store and download the OS If a wireless network is available, you can choose it from the Wi-Fi menu in the menu bar. What to do when ‘the installer payload failed signature check’ or ‘this copy of the install OS X application cannot be verified’:Īll you need is a connection to the Internet. Install the macOS that came with your Mac, or the closest version still available.
Reinstall dropbox mac upgrade#
Upgrade to the latest macOS compatible with your Mac. Install the latest macOS that was installed on your Mac. Command-R is generally recommended, especially if you never installed macOS Sierra 10.12.4 or later.
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following combinations on your keyboard.
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