Mac wont boot circle with line through it

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  2. circle with diagonal line thru it at startup
  3. circle with diagonal line thru it at startup - Apple OSX
  4. MacBook won't boot, circle with slash

The is one of the symbols that users of Apple products running macOS rightfully fear. Several Apple forums advise booting from a recovery hard drive, reinstalling macOS, repairing your hard drive with Disk Utility… These are all valid solutions… ones you should only use after trying something simple first. I was able to solve both my boot problem and update problem with simple solutions. When I saw the prohibitory symbol, I held down the power button until the Mac shut down. I waited at least one minute.

You should use the Startup Manager as described here :. Always be patient so that the Startup Manager has time to scan for all connected drives and display them on screen. That was easy.


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Perhaps there was a glitch while my Mac was initially looking for a bootable drive. These things happen. I had heard that Apple had released versions of Mojave newer than the one I initially installed. I had been promoted several times by Mojave to update, but ignored those prompts for severals weeks.

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Earlier today, I decided it was time for me to be running the latest version of Mojave beta. The About This Mac window opened with the Overview tab highlighted. I then clicked on Software Update… highlighted in red :. I clicked the Update Now button highlighted in red :. I clicked the Install Now button highlighted in red :.


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I pressed the power button until my MacBook Pro powered down. I used the Startup Manager as described above and at the link , holding the option key down as soon as I heard the Apple chime. I selected the one named macOS Installer :. Then it showed me progress as it performed the update:. The update process may take awhile.

When the progress bar reaches the end of the estimated processing time marker, the screen may go black.

circle with diagonal line thru it at startup

In fact, the screen may go black at several points during all these steps. Board Licensed to: Geeks to Go, Inc.

Troubleshooting Mac startup problems

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circle with diagonal line thru it at startup - Apple OSX

Please log in to reply. Posted 26 April - PM. Best Answer. Posted 27 April - AM. Thanks for the reply and the link.

How to Fix the Prohibitory Symbol on a Mac ("Do Not Enter" Symbol)

I did run disk utility and it was fine. Edited by itsmesunny, 27 April - AM.

MacBook won't boot, circle with slash

Hello, I can't answer that question due to my limited knowledge of the Mac operating system. The most logical action to take or consider is a Mac forum. Do you know of any? Posted 27 April - PM. Is that not what this question was geared towards Hello, My bad I had not realized this was the os x discussion forum. So you're good here. Posted 06 May - AM. I fixed it. Downloads View all categories Upload file New files since last visit Files from past 7 days. Members Status Updates.