Ubuntu 8.10 doesn't appear in my MacBook?
I installed Ubuntu 8.10 in my MacBook and become default operating system. I want Mac OS X is the default operating system. So I restart my Mac using System Preferences/Startup Disk. When I want to restart back to Ubuntu 8.10, it seems that it doesn't appear in my machine. Unless I restart it with the CD in it. Even my Boot Camp disk can't be restored. Should I reformat my Mac?
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