Finally, AppleJack compatible with Leopard

I hope you never run into a situation where your Mac does not boot fully into the finder, but when you are, you can be assured of not having a bootdisk handy...

So here's the solution: "Applejack" by Kristofer Widholm


AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have a startup CD handy. AppleJack runs in Single User Mode and is menu-based for ease of use.

You can use it to repair your disk, permissions, validate and fix the system's preference files and clear your (possibly corrupted) cache.

Just download it, install it onto your system disk and the next time you're running into trouble, just fire up the Single-User Mode of your MAC by holding command + s on bootup. Type "applejack" or "applejack auto" and let the magic begin.

I used it on my Tiger System quite a few times and everything turned out A-OK afterwards.

If you don' trust me, here's a list of user experiences with AppleJack.

If you need an in-depth article about troubleshooting your MAC with AppleJack, MacFixIt has a nice article on it.