Why is upgrading to any macOS release except Mojave impossible after a disc change?

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Why is upgrading to any macOS release except Mojave impossible after a disc change?

I’ve recently encountered a perplexing issue. After upgrading the hard drive on my Mac, I find that I can’t upgrade to any macOS release except Mojave. This problem has been incredibly frustrating as it severely restricts me from taking advantage of the latest macOS features and security updates. Every time I attempt the upgrade process, I am met with various errors or the system simply refuses to proceed beyond Mojave. This issue persists despite following all the usual troubleshooting steps, such as ensuring the integrity of my new hard drive and performing clean installations. Does anyone else have this problem, and what could be causing the upgrade path to be blocked in this way?

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6 Answers

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  1. Internet Recovery Mode:
  2. Restart your Mac and hold down Command + Option + R until you see a spinning globe.
  3. This mode lets you download the latest compatible version of macOS directly from Apple’s servers.
  4. Follow on-screen instructions for installation.
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  1. Consult Apple Support: If none of the solutions seem to work, consult Apple Support. They can offer specialized assistance and might identify deeper issues that aren’t easily visible. Sometimes, expert help is needed to resolve complicated hardware-software compatibility issues.
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  1. Check for Firmware Compatibility: Replacing the hard drive might cause issues with firmware compatibility. Make sure your system’s firmware is up to date. Reboot your Mac, hold down the ‘Option’ key to access the Startup Manager, and navigate to your firmware settings to check for updates.
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  1. PRAM and NVRAM Reset:
  2. Turn off your Mac and then turn it back on while holding down Command + Option + P + R for about 20 seconds.
  3. Release the keys and then see if you can proceed with the upgrade.
    Resetting the PRAM or NVRAM fixes various unexpected issues after a hardware change.
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  1. Boot from a Recovery Drive: You can create a macOS recovery drive using another Mac. In Terminal, use the createinstallmedia command. Boot your Mac from this recovery drive by holding down the ‘Option’ key during startup. Once booted, follow the prompts to install a new macOS version.
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  1. Check Disk Formatting: Your new hard drive may not be correctly formatted. Ensure it’s formatted to APFS if you’re upgrading past Mojave. Use Disk Utility in the Utilities folder to select and format your new hard drive properly.
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