Here is what happened to me one time...
Evidently the OS become corrupted in a way that would
cause a reboot to fail, but the machine still ran.
When Super Duper cloned the main disk it copied the
corruption to the backup.
When I reboot the machine and it failed, I tried rebooting
from the SuperDuper clone which also failed.
I had to restore the OS from the Distribution CD and then pull
files from the backup disk.
I *think* Time Machine would allow one to *possibly* go back
far enough to escape the corruption.
Jerry
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