I can not start my mac

Question

Level 1

8 points

I can not start my mac

I have tried option key and cmd r keys. NO entry sign come always.

I had mac leopard in my mac. I updating it to lion. Then I canceled the lion installation in middle. And open disk utility and erased HD because I wanted to do clean install. After that I could not open disk utility not even boot the mac.

Now when I start the mac, sound comes and then gray screen and no entery sign and nothing happen.

If I press option key, it shows the mac os lion which I trying to install, if I click on that, its goes again to gray screen and no entery sign.

please assist me.

Mac OS X (10.5.8)

Posted on Dec 6, 2012 12:42 AM

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Answer 1

BGreg

Level 6

17,552 points

Dec 6, 2012 4:40 AM in response to Malik toor

Several questions ...

Which mac system are you working on?

Do you have a bootable backup you can use?

Do you do have the original OS X disks that came with your system or the retail version for OS X 10.5 Leopard?

Are you trying to use one of those to boot from?

Lion came as a download or on a USB memory stick, what are you using? How do you know it's bootable?

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Answer 2

OGELTHORPE

Level 9

57,305 points

Dec 6, 2012 6:29 AM in response to Malik toor

See if these support article are of any assistance:

http://support.apple.com/kb/TS2570

http://support.apple.com/kb/PH11044

Ciao.

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Answer 3

Malik toor Author

Level 1

8 points

Dec 6, 2012 9:38 AM in response to BGreg

Which mac system are you working on?

Do you have a bootable backup you can use?

Do you do have the original OS X disks that came with your system or the retail version for OS X 10.5 Leopard?

Are you trying to use one of those to boot from?

Lion came as a download or on a USB memory stick, what are you using? How do you know it's bootable?

I am working on windows system.

I do not what is bootable back up, BUt I had download lion os and made usb bootable an dcheck ed that this is bootable usb. i have done all this in friends mac.

I have tried with original os X disks as well, but still nothings happen.

As I press start buttion, down comes and then gray screen.And then no entry sign come sup.

Please assist me.

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