Apple’s MacOS X 10.5 “Leopard” has been out a while now, and I hear about more and more people hitting an installation snag that causes them a lot of grief.

You boot up the Leopard DVD-ROM, start walking through the install process and when it gets to the dialog asking where to install it, there’s nothing. No disk partitions show up at all.

I’ve encountered this on several computers so far. I can’t tell you exactly what causes it. I’ve seen it on both Intel and PowerPC machines.

We tried all the obvious things: reset the PRAM, repair the target disk, repair permissions on the target disk… no luck.

The solution is simple:
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