You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Monterey Installer Is Unable To Select The Startup Disk on M1 Mac

Monterey Installer Is Unable To Select The Startup Disk on M1 Mac


macOS Monterey install can not select startup disk

The macOS Monterey 12.0.1 installer is unable to select the startup disk (Macintosh HD) because it thinks it isn't the startup disk, however, it is. It gives the error:


"You must provide authorization for this volume by setting it as your startup disk. You can relaunch the installer after authorization has been provided."


I am currently running macOS 11.5.2 (M1) It appears the issue is that the installer isn't properly requesting authorization before access.

Posted on Feb 27, 2022 3:00 PM

Reply
Question marked as Top-ranking reply

Posted on Feb 27, 2022 4:34 PM

How are you running the installer? From a USB external flash drive? Also, the latest Monterey is 12.2.1 not 12.0.1 which is old. I would recommend deleting /Applications/Install macOS Monterey and re-installing from the App Store and run it right from within the macOS 11.5.2 operating system.

Similar questions

3 replies

Feb 27, 2022 4:51 PM in response to HeadphoneJack

HeadphoneJack wrote:

Monterey Installer Is Unable To Select The Startup Disk on M1 Mac

macOS Monterey install can not select startup disk
The macOS Monterey 12.0.1 installer is unable to select the startup disk (Macintosh HD) because it thinks it isn't the startup disk, however, it is. It gives the error:

"You must provide authorization for this volume by setting it as your startup disk. You can relaunch the installer after authorization has been provided."

I am currently running macOS 11.5.2 (M1) It appears the issue is that the installer isn't properly requesting authorization before access.
https://discussions.apple.com/content/attachment/3a2129f9-e3ef-4b5b-b4df-8c030c050867


The current stable release of Big Sur is macOS 11.6.4


I would start there, and then try your Monterey upgrade and compare your results


Keep your Mac up to date - Apple Support

https://support.apple.com/guide/mac-help/get-macos-updates-mchlpx1065/mac

Monterey Installer Is Unable To Select The Startup Disk on M1 Mac

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.