Trouble installing OS in my IMac
The installation keeps hanging up on few seconds remaining and shows that an error occurred while installation try again! It would be really helpful if someone can guide me on the same.TIA
Question marked as
First off, please verify the make and model year and season of your Mac, by looking at the serial number or EMC# on the bottom. Use the serial number on the check coverage page:
http://checkcoverage.apple.com/
to lookup thein information. DO NOT post the serial number on Apple Support Communities, as that is personal identifyiable information.
Next for Macs newer July 22, 2011, are you trying to use recovery or internet recovery?
Recovery will reinstall the OS from a partition that was created during a prior install and can be done on top of an existing OS install if you are missing components or you want to update to the latest release of the currently installed OS.
Internet Recovery will try to install the original OS that came with the Mac and has to be done on an empty partition formatted by Disk Utility first or external hard drive. There are different commands for the recovery depending on whether or not you are using a pre-2020 Mac, which is Intel, or 2020 or later Mac which is Apple Silicon:
Use macOS Recovery on an Intel-based Mac - Apple Support
Use macOS Recovery on a Mac with Apple silicon - Apple Support
Pre-July 22, 2011 don't necessarily have any recovery unless either the firmware
Computers that can be upgraded to use OS X Internet Recovery - Apple Support
Or Sierra or later were installed earlier.
Otherwise you will need the original installer disc that came with the Mac to install the OS, or if the Mac is older than March 15, 2010, a copy of Snow Leopard 10.6.3. retail to install.
Further directions to install a newer OS can be provided if we know they are needed.
Older OSes can't be installed directly on top of newer OSes.
