If you receive an error message indicating that your Mac's firmware is out-of-date, and hence cannot accept installation of Mac OS X from a CD/DVD -- specifically ...

We previously reported that Apple's new OS X-only booting Power Mac G4s, OS X-only booting PowerBooks and the 2003 iMacs have trouble booting from the Mac OS X 10.2 Server CD. Workarounds that have ...

Apple rolled out the public version of macOS Sonoma on September 26, 2023, making it available to download and install on any supported Mac desktop and MacBook, including some older models that pack ...