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Level 1

8 points

Update late 2011 iMac to MacOS High Sierra stuck

I have a late 2011 iMac which was working perfectly on OS 10.9 last night I decided to update it to High Sierra.

It is now stuck at the “ cannot install macOS on this computer” “Mac OS cannot load the files...”

Cannot log in safe mode

Disk utility cannot repair / mount the disk (Machintosh HD)

Cannot go into Targeted disk mode to recover some important files on the drive.

Cannot create a new image from the Machintosh HD

Cannot run Kextstat in terminal (command not found)

Still can’t figure this out. can someone help pls?

Thank you.

Posted on Apr 21, 2018 1:07 PM

Best reply

Level 1

8 points

Posted on Apr 22, 2018 6:59 AM

IT WORKED!!!!

(Must be mentioned that the disk could be seen (grayed out) from disk utility.

1- I installed os high Sierra on an external HD

2- started the iMac that couldn’t work from it

3- launched terminal typed:

diskutil list

This listed the drives. I could see my internal (original) Macintosh HD

And my external HD with the OS Sierra installed

4-still on terminal I typed (replace src and dst with device to be mount and the mount point respectively)

sudo mount/dev/src/mnt/dst -o force

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