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reinstall OS on Mac

Trying to reinstall 10:13 high Sierra after erasing disc on 2011 vintage iMac. In recovery mode get the error: the recovery server could not be contacted. Using terminal mode in recovery I reset the date on my Mac; but the error persists. How to fix?


iMac (2017 – 2020)

Posted on Jun 7, 2023 6:50 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 7, 2023 10:20 AM

 Start up from macOS Recovery

Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


APFS won't work for Sierra, Sierra needs MacOS Extended Journaled. High Sierra won't work fir APFS on earlier Macs.


What has often worked for others is to use this Restore Method instead of CMD+r keys...


Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


2017 iMac failing to install Sierra in re… - Apple Community

Clean Install of High Sierra: Multiple Fa… - Apple Community


1 reply
Question marked as Top-ranking reply

Jun 7, 2023 10:20 AM in response to cywalls

 Start up from macOS Recovery

Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


APFS won't work for Sierra, Sierra needs MacOS Extended Journaled. High Sierra won't work fir APFS on earlier Macs.


What has often worked for others is to use this Restore Method instead of CMD+r keys...


Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


2017 iMac failing to install Sierra in re… - Apple Community

Clean Install of High Sierra: Multiple Fa… - Apple Community


reinstall OS on Mac

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