Shortly after the launch of Apple’s new M1 Macs, we noticed stories that makes an attempt to restore and reinstall macOS on these machines instantly might lead to an set up error that would depart your Mac non-functional.
Particularly, the error message would learn: “An error occurred preparing the update. Failed to personalize the software update. Please try again.”
Over the weekend, Apple posted detailed directions for customers experiencing this problem. Particularly it appears the difficulty arises in the event you erase/restore your Mac earlier than upgrading to macOS Large Sur 11.0.1.
If you happen to erased your Mac with Apple M1 chip earlier than updating to macOS Large Sur 11.0.1, you could be unable to reinstall macOS from macOS Restoration. A message may say “An error occurred while preparing the update. Failed to personalize the software update. Please try again.”
Use both of those options to reinstall macOS. It’s best to then have the ability to use macOS Restoration as anticipated when reinstalling macOS sooner or later.
Apple means that you possibly can create a bootable installer utilizing one other Mac. In any other case, Apple particulars a extra technical 17 step course of utilizing Terminal to restore your M1 Mac to a useful state.
If you’re nonetheless having hassle, Apple recommends contacting help, and you too can go to our ongoing discussion board thread the place customers are troubleshooting this particular problem.