On Dec 14, 2008, at 8:37 AM, [email protected] wrote:

> I ran TechTools on my MacMini running 10.5.5.  When it finished an
> unattended optimization the program apparently closed itself.  When I
> came back, everything seemed fine until I attemped to re-boot to the
> drive that had been optimized.

You do not, ever need to 'optimize' a hard drive under OS X.

It does so itself, and the only situation that would ever call for  
optimization (repeatedly adding and deleting many large files, such as  
video editing or marathon Photoshopping) are best handled instead by  
using an external data drive that can be reformatted between sessions.

>  All I could get was a white screen
> with the spinning wheel.  I inserted the TechTools disk that came with
> Apple Care and held down the C key.  Still nothing.  Trying a shift
> hold down didn't produce Safe Mode.  Any suggestions?

TechTool borked up your system but good. Boot from your 10.5 installer  
and do an archive&re-install. Hopefully it didn't bork your user data  
as well.

As a rule: OS X is a robust file system, it doesn't need tweaking,  
fixing, maintenance, or repair on a regular basis, only when it's  
broke, which SHOULD be a rare, rare occurrence. MOre directory damage  
comes from deliberately screwing with the system (Optimization,  
running DiskWarrior to 'tune up' the computer, etc etc) than occurs  
naturally.

If you find yourself needing to do this sort of thing on a regular  
basis, start looking for hardware issues or some other sort of  
abnormal condition.

The rule "If it ain't broke, don't fix it!" applies.

--
Bruce Johnson

"No matter where you go, there you are", B. Banzai


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