Erased hard drive. Can’t reload MacOS Sierra

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Level 1

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Erased hard drive. Can’t reload MacOS Sierra

Hi, Ive erased the hard drive but can’t install MacOS Sierra. It says the drives are locked. In disk utility most of the icons are greyed out. See pictures. Thanks

Posted on Mar 18, 2021 12:43 AM

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Answer 1

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a brody

Level 10

83,221 points

Mar 18, 2021 10:24 AM in response to dbeacham

What is on your passport. Is it a bootable system, or a Time Machine backup?

Have you tried internet recovery, which is command-option-shift-R?

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Answer 2

PRP_53

Level 10

85,525 points

Mar 22, 2021 2:56 AM in response to dbeacham

Are you using Firmware Password to lock the drive ? If Yes, have to unlock with password before moving on.

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Answer 3

dbeacham Author

Level 1

4 points

Mar 21, 2021 7:33 PM in response to a brody

Hi, I have a time machine backup. I will try the internet recovery. The main issue I have is that it won't reload as the disk is locked.

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Answer 4

a brody

Level 10

83,221 points

Mar 22, 2021 6:30 AM in response to dbeacham

Keep in mind, APFS formatting is not supported by Sierra or earlier.

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Erased hard drive. Can’t reload MacOS Sierra

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