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upgrade to Big Sur

friends

I followed all the steps for upgrading but always I recive message that I cannot install it in my computer

can I get the help please

thank you

Posted on Nov 30, 2021 12:13 PM

14 replies

Dec 9, 2021 4:02 PM in response to Community User

If going the Erase and Install - follow the advise from previous posting and have a very recent TM Backups


Below will Wipe the Entire Drive and ALL Data - there is no recovery - 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  >>


Only works on Intel Based Apple Computers.


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 APFS with the GUID Partition Map.


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.

Dec 1, 2021 2:24 AM in response to Community User

Have seen below affecting only Monterey. Have not seen this same appearing for Big Sur.


There are reports appearing on the ASC Forums regarding failed installation of Monterey on older Qualifying Apple Computers. In most cases this is related to having a NON Apple Original internal drive ?  


The EFI Boot ROM included in Monterey is verifying for Original Apple Drive and if not found , may Balk or fail to upgrade to Monterey. 


Reports indicate the EFI BOOT ROM is Required to Flash the Computer and is a  requirement for a Successful Monterey Installation.

Dec 4, 2021 3:22 AM in response to Community User

From above picture it look Original Apple.


After additional pondering and searching the ASC Forums - have found the rare instance where moving from Catalina directly to Monterey fails.


In those instances - the user first upgraded to Big Sur macOS 11 and eventually was able to upGrade to Monterey macOS 12.


It was never disclosed why only that is worked - for them.

Dec 9, 2021 11:52 AM in response to PRP_53

hello friends

I downloaded Big Sur from my other Macbook 2015 to usb and I tried to install it in my second MacBook which runs macOS Catalin but did not work .

the question :

should I erase Macintosh HD drive then install Big Sur or not? especially this is the only way I haven't tried it yet

thank you

Dec 1, 2021 3:25 AM in response to PRP_53

dear I tried to install it directly from the applications which did not work and I tried from restart and booting it from usb also did not work

upgrade to Big Sur

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