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Can anyone help me with this am in Mac OS X Lion rn and I try to upgrade to el captain but I already install the upgrade from Apple website and I try open it but it say “The following disk images couldn’t be opened reason not recognized” the files name is “InstallMacOSX.dmg” how can I open this?
Chipmunkpeanut135 wrote:
I already did the instruction that Apple say but it not working
Try opening and building an installer on a Mac that can run El Capitan, and is running something newer than Lion.
Alternatively, see if you can get macOS Recovery on that Mac to download the latest version of macOS that the old Mac here can run.
That’s Option-Command-R, as described here: Use macOS Recovery on an Intel-based Mac - Apple Support
Chipmunkpeanut135 wrote:
I already did the instruction that Apple say but it not working
Try opening and building an installer on a Mac that can run El Capitan, and is running something newer than Lion.
Alternatively, see if you can get macOS Recovery on that Mac to download the latest version of macOS that the old Mac here can run.
That’s Option-Command-R, as described here: Use macOS Recovery on an Intel-based Mac - Apple Support
Is the following sequence not working? Are you double-clicking on the dmg file to mount the dmg disk image?
I already did the instruction that Apple say but it not working
Mac OS
