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Question: Forbidden sign on restart

After pushing an image to macbook, it shows forbidden sign. How can I fix it?

Mac OS X (10.6)

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Nov 16, 2017 2:00 AM in response to lashkarm In response to lashkarm

that can be serious, perhaps a dead or dying disk.

Do a SMC reset while it is shut off, then try again.

How to reset the System Management Controller (SMC) on your Mac - Apple Support

It will probably not startup, but if it does, make backups immediately !

Then run the etrecheck app, it will produce a diagnosis list,

post the list here.

etrecheck.com

Nov 16, 2017 2:00 AM

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Question: Forbidden sign on restart