Help: Cannot do ML clean install from USB

[sa7078]

I have a Macbook Pro with Retina Display and I've downloaded ML and created a bootable USB key following every instruction very carefully.

I booted from the USB and went into disk utility and wiped the rMBP SSD.

I then reboot from the USB and it starts to install but then I get kicked out with a message: "There was a problem installing 'Mac OS X.' Try reinstalling"

When I go into disk utility, I do see something on the left beneath the hard drive and USB drives under the black line called "disk 2" with a partition "Mac OS X Base System."

Is this what's causing the problem?

Right now I have a blank hard drive and when I boot without the USB key, it just flashes the folder with the question mark.

Please help!

I did make an appointment at the Genius Bar tomorrow in case I can't resolve this.

 

[macmcmc]

I had something similar, and on an SSD too. It might be that some state on the drive is messed up.

Try this:

Reboot and hold Opt+Cmd+P+R

That resets the PROM (programmable read-only memory) that may be holding some persistent state of the drive.

Worked for me, and I got my ML to install fine off USB!! Good luck!

 

[Sanz315]

I had something similar, and on an SSD too. It might be that some state on the drive is messed up.

Try this:

Reboot and hold Opt+Cmd+P+R

That resets the PROM (programmable read-only memory) that may be holding some persistent state of the drive.

Worked for me, and I got my ML to install fine off USB!! Good luck!

Thank you so much! I had this problem and you Sir solved it!!!