5 Replies Latest reply: Dec 6, 2012 7:21 PM by Malik toor
Malik toor Level 1 Level 1 (0 points)

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)
  • BGreg Level 6 Level 6 (17,500 points)

    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?

  • OGELTHORPE Level 7 Level 7 (33,020 points)

    See if these support article are of any assistance:

     

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

     

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

     

    Ciao.

  • Malik toor Level 1 Level 1 (0 points)

    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.

  • BGreg Level 6 Level 6 (17,500 points)

    Wht mac are you trying to install Lion on?

  • Malik toor Level 1 Level 1 (0 points)

    I have macbook white.

    I have tried to install original leopard which came with macbook, still did not work.