Mac unable to boot

I updated my iMac to Big Sur then decided to erase the hard drive to try and speed it up. Since doing so I am unable to use the computer. When switched on I am greeted with a flashing folder. Cmd + R leads to the internet recovery tool which gives the option to reinstall OS. However when prompted to select the disk, my hard drive is missing! Please could someone help?

Posted on Mar 1, 2021 2:35 PM

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1 reply

tbirdvet

Level 6

17,675 points

Mar 1, 2021 4:35 PM in response to robbieshell

After command-R you need to go to disc utilities and format the drive. Then back to reinstall. Your drive should then be available.

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Mac unable to boot

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