Or just restore your time machine backup. I've done that across several macs for hard drives/dead boards/etc, as well as just straight upgrades. I'm still runni

Or just restore your time machine backup. I've done that across several macs for hard drives/dead boards/etc, as well as just straight upgrades. I'm still running on my original Tiger install from 2005 or 2006 (whenever it came out). It's been upgraded along the way.