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My iMac is on the list compatible for update to macOS Monterey (retina 5K, 27-inch, 2017). Currently operating on macOS Big Sur. Ran the update but I'm still on macOS Big Sur. Under Software Update, I hit check for updates. It has not responded. I restarted the computer and tried again. Same result. Any other suggestions?
iMac, OS X 10.11
Try booting to Safe Mode. That boot up takes minutes and clears caches and other things that may resolve your problem.
How to use safe mode on your Mac - Apple Support
Try downloading and installing when in Safe Mode.
A lot of times just boot to Safe Mode followed by normal boot resolves problems
What version of Big Sur? If not on 11.6.3 try updating to that first.
You can download the latest version of Monterey by entering the following in the Terminal app
softwareupdate --fetch-full-installer --full-installer-version 12.2.1
Entering the following in the Terminal app to download and install updates to the currently installed macOS version:
softwareupdate -i -a
Welcome and ready for the jump to Monterey ?
Feb 16, 2022 Version # 3
The below points should be consider before attempting the upgrade.
Point # 1 - Does the >> Computer Qualify for the Monterey upgrade
Point # 1A - 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.
Point # 2- >> How to upgrade to macOS Monterey
Point # 3 - Empty Space Requirements >> If upgrading from macOS Sierra or later, your Mac needs 26GB of available storage to upgrade. If upgrading from an earlier release, your Mac needs up to 44GB of available storage.
Point # 4 - Empty Space afterwards - it is suggested to keep at least 15% of the Drive Total Capacity as Empty Space for good operations of the computer and for additional updates to Monterey to download, expand and install.
Point # 5 - The upgrade will require a quick, stable and reliable Internet Connection - preferred method is via Ethernet Connection.
Point # 6 - If using Wifi - move computer as close to the Access Point / Router and disconnect all other devices connected to Wifi. Want the maximum bandwidth for the computer being upgraded to Monterey
Point # 7 -Commercial VPNs should only be used if Mandated by Corporate Head Office for working remotely. Otherwise - ones Privacy and Security touted by the VPN is suspect.
Point # 8 - If downloading Monterey from behind a VPN it may increase Packet Looses and an incomplete or corrupted Installer.
Point # 9 - AntiVirus Software should be removed as per Developers Instructions. They are unneeded, cause havoc and interfere with the normal operation of the OS including the download and installation of Monterey.
The Built in Security is all that is required.
There are no known Windows-like Viruses in the wild that self replicate and affect macOS because of the underling UNIX Foundation and Permission Limitation.
Point # 10 - Disk Cleaners, Optimizers and UnInstaller are not needed. They will often times attempt to Modify, Alter, Remove or Delete elements of the Operating System requiring a Re-Installation.
Point # 11 - Do you have a Rescue Plan In-Place. This comprises having 3 Backups using 2 methods and 1 Off Site incase of Theft, Loss or Natural Disasters. A Time Machine Backup is very useful and can be used to Revert to Previous Working macOS.
Point # 12 - For addition purposes - two Tested Bootable Clones each to separate external drives. This is insurance incase the upgrades goes sideways. At least one Tested Clone and / or Time Machine Backup should be Off - Site
Point # 13 - Are the installed Applications / Extensions compatible with Monterey. Check with the Developer for compatible Apps / extensions. Do they offer updates or upgrades. Same goes for Third Party Drivers for Printer, Scanners etc.
Point # 14 - If upgrading from Mojave and earlier versions of macOS - Remember that Monterey does not support anything 32 bit. These include Applications, Extensions and Drivers for any devices. There is no workaround.
Point # 15 - To check for 32 bit Applications - a good application to use is Go64 - safe to use.
Thank you for replying so quickly. Big Sur on my computer is 11.6.4. Something has come up which means I won't be able to try this for about a week. When I do, I'll let you know how it goes. Thank you and fingers crossed!
The latest version of Big Sur has recently been updated to version 11.6.4 and is a good idea to have Big Sur fully up to date before attempting the upgrade to Monterey.
Thank you for replying so promptly. Big Sur on my computer is version 11.6.4. Thank you.
Trouble updating to macOS Monterey
