This disk is locked while installing high sierra

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This disk is locked while installing high sierra

Basically, my issue started when my EFI partition somehow got corrupted after removing bootcamp from whithin the bootcamp app on macOS, because of this i can no longer boot into my drive, and have tried to repair it several different ways, without any success, i was able to access the drive from another mac, and all files are still there, and are accesible, i read that the easiest way to fix this without loosing any data is just to reinstall macOS using the recovery (i have a functional recovery partition) but when i try to reinstall it tells me this disk is locked, is there any way to unlock it via command promt, i do have the password, i definitely do not wish to format or whipe the partition at all.

im running and older macbook pro 9.1 from 2012 and macOS 10.12.6

PLEASE HELP

MacBook Pro 13″, macOS 10.12

Posted on Jul 23, 2023 10:24 PM

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Answer 1

Jul 25, 2023 8:41 AM in response to ddvindas

ddvindas wrote:

im running and older macbook pro 9.1 from 2012 and macOS 10.12.6

Is that the version of macOS you actually have installed on this laptop or this the version of the OS installer?

You need to make sure you are reinstalling the same version of macOS which is already installed on the drive, or a later version of the OS. Unfortunately Recovery Mode does not always boot the OS installer you expect as it may boot into the online installer for the OS which originally shipped with the laptop from the factory which is likely older than the OS currently installed. Try booting into Internet Recovery Mode using Command + Option + R to attempt access the most recent version of the online macOS installer which would be 10.15. Even with this special key combination, some Macs will still only boot the older online installer.

I highly recommend you make sure you have a good backup of any important data before doing anything just in case something goes wrong where you end up losing access to the data.

FYI, for a laptop this old, I would be concerned about a worn out or failing hard drive. An OS install will many times push an old drive over the edge if the hard drive is already failing (most people don't realize they have a failing drive as they tend to ignore the signs).

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