So I have a MacBook with Mac OS X 10.5 and I'm trying to upgrade to 10.6, but when I run the upgrade 'install' I quickly get to a page where I am supposed to 'Select the disk where you want to install Mac OS X' and there is only the one hard drive, so it is auto selected, and below that I see a warning message and the only button available is the 'Go Back' button.
The warning message says:
"Macintosh HD" can't be used because
it doesn't use the GUID Partition
Table scheme.
Use Disk Utility to change the
partition scheme. Select the disk,
choose the Partition tab, select the
Volume Scheme and then click Options.
So I followed the above instructions, and I got to the last step, where I'm supposed to click the 'Options' button, the problem is that I cannot click that button, it is disabled.. So what am I supposed to do?