error while installing MacOS Monterey
I get an error while attempting to install MacOS Monterey - any ideas on how to resolve?
MacBook Pro 13″, macOS 11.6
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I get an error while attempting to install MacOS Monterey - any ideas on how to resolve?
MacBook Pro 13″, macOS 11.6
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.
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.
What is the exact wording of the error message?
Where in the update process are you getting that message?
Possible problems:
You need an Apple disk installed to upgrade to Monterey since the upgrade includes an update to the Mac's firmware. That update looks for an Apple disk and write to the dick to do the firmware update. The install will terminate or freeze if no Apple disk.
Do you have enough free disk space?
Do you have any antivirus or clean apps installed? Id so uninstall them udding the app's instructions.
To see what disk is installed,click on Apple icon in upper left and select About This Mac>System Report>Hardware>Storage>the internal disk>and the manufacturer would be under Physical Drive>Device Name. An Apple drive says Apple.
I see. I bought my MacBook refurbished by a private seller, and am certain the hard drive is not an Original Apple Drive.
Not a hardware expert, but I assume that an EFI BOOT ROM would require installation by Apple?
Big Sur is working just fine for me, so upgrading to Monterey isn't necessary.
Thank you.
If possible to get an Original Apple Drive and flip out the After Market drive and pop in the Original drive - format etc and run the Monterey Installer to that drive. Then, reverse the previous step and run the Monterey Installer again to the after Market Drive.
Presto - Monterey should install.
Credit to @ lllaass for discovering this work around.
See the picture below - no problems with Disk space, and no antivirus/cleanapps on the MacBook.
Why wouldn't the Book have an Apple disk?
Same problem here. I just checked my Storage and it's Apple Hardware but, even so, I can't install the new OS.
error while installing MacOS Monterey