Help updating Lion os to Catelina
Hello, just restored an old MacBook Pro 2012. Restoration used original OS lion. Now nothing will update. IOn lion is not a secure connection. What do I do?
Earlier Mac models
Try making a bootable USB Verion of El Capitan...
These older macOS versions are available as disk images that you can download using your web browser. To get the installer from the disk image, you must use a Mac that is compatible with that macOS.
- Use these links to download a macOS disk image (.dmg) file. If these links don't work as expected, try again using Safari, which is in your Applications folder.
- Double-click the .dmg file to open it and see the package (.pkg) file within.
- Double-click the .pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder.
- Open your Applications folder and double-click the macOS installer, named Install [Version Name]. Follow the onscreen installation instructions.
How to download and install macOS - Apple Support
Create a bootable installer for macOS - Apple Support