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not able to go back to macos

. When I went to the Windows 10 Bootcamp and clicked on 'Restart in macOS', it says "Could not locate macOS boot volume". Does anybody know how to fix this? The hold-down option key when restart Windows doesn't work as well.

MacBook Air 13″, macOS 11.5

Posted on Sep 8, 2021 8:24 PM

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Question marked as Top-ranking reply

Posted on Sep 8, 2021 8:51 PM

primghj Said:

"not able to go back to macos. When I went to the Windows 10 Bootcamp and clicked on 'Restart in macOS', it says "Could not locate macOS boot volume". Does anybody know how to fix this? The hold-down option key when restart Windows doesn't work as well."

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Mount the Hard Drive in Disk Utility:

While booted into Recovery Mode [Hold Down: command + R keys upon boot], go to Disk Utility> tap the Hard Drive, then tap the Mount button. See if you can then install it. If it is already mounted, then unmount it and then remount it. See where you can go from there.

4 replies
Question marked as Top-ranking reply

Sep 8, 2021 8:51 PM in response to primghj

primghj Said:

"not able to go back to macos. When I went to the Windows 10 Bootcamp and clicked on 'Restart in macOS', it says "Could not locate macOS boot volume". Does anybody know how to fix this? The hold-down option key when restart Windows doesn't work as well."

-------


Mount the Hard Drive in Disk Utility:

While booted into Recovery Mode [Hold Down: command + R keys upon boot], go to Disk Utility> tap the Hard Drive, then tap the Mount button. See if you can then install it. If it is already mounted, then unmount it and then remount it. See where you can go from there.

Sep 9, 2021 2:02 PM in response to primghj

How to create a bootable installer for macOS


The Next Steps will Wipe the Entire Drive and everything on it. There are No Do Overs here - done os done for good - period.


To perform this action will require booting from a Bootable Installer. This will have to be performed from a Qualifying Computer to run the version of macOS to be made on the Bootable Installer. Example : Bootable Installer of Big Sur would have to be done on a computer that Qualifies to run Big Sur.


Once that is done read on, for preparing the Destination computer  >> Special Notation - works on Intel Based Apple Computers & May on Apple Silicon M1 CPU


Extra Special Notation regarding the Touch ID equipped Apple Computer. About Startup Security Utility and Must Enable from Recovery Mode the ability to boot from External Drive Before Attempting 



1 - Shutdown computer and disconnect all external drive Except the newly created Bootable Installer.


2- Restart and immediately hold the OPTION key until the Startup Manager appears and choose the USB Drive. 


3 - It will present options >> Disk Utilities >> View >> View ALL attached Drives.


4 - Choose the Upper Most Drive ( not the volumes indented and list below ).


5 - The drive normally is called Apple Media or Apple SSD - that is the drive to Erase and format as HFS Journaled with the GUID Partition Map. If the Internal Drive is an SSD - the installer will convert the drive to the new APFS Format.


6 - Once that is done >> backup out of Disk Utilities and choose install macOS. 


7 - Follow the prompts and it may automatically reboot several time. 


8 - Upon a final reboot - Setup Assist will present with the newer version of macOS.

not able to go back to macos

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