An oldie but goodie from the DF archives four years ago: my recommendations for installing major Mac OS X software updates:
So, in short:
- Do a complete backup clone to an external FireWire drive.
- Test that the backup is indeed bootable and up to date.
- Unplug the backup drive.
- Pop in the installer DVD and launch the “Install Mac OS
Step 4 has been obviated by the App Store, of course, but steps 1-3 still stand. Do not assume that going from 10.6 to 10.7 will be an easy or seamless transition. If you really want to be prepared, check out Joe Kissell’s $10 e-book, Take Control of Upgrading to Lion.
★ Tuesday, 19 July 2011