Select the existing partition and press - button to delete it.Ĥ. Go to Utilities menu > Disk Utility, choose the hard disk in the sidebar and go to Partition tab.ģ. Insert the Mac OS X DVD and press C key while your Mac is starting to start from the disc.Ģ. Internet Recovery isn't compatible with your Mac, so the only thing you can do is to reinstall the original Mac OS X version that came with your Mac, or Snow Leopard (as you have upgraded to OS X Lion, you should have the Mac OS X Snow Leopard disc).Īnyway, you need the discs to install OS X again, so if you have the Snow Leopard disc, it will be much easier:ġ. Also, when prompted to pres CTR-ALT-DEL, I have tried both while pressing Fn and while not, and there has been no response from the computer. In addition, I cannot retrieve any data from the old hard drive, since the internal disk was smashed. I'm not sure if I have to reformat it, it is currently NTFS, as I was using it as an extra hard drive for a Windows machine. The new 2.5' hard drive was used in a Windows machine before the motherboard on the Windows computer was fried, so I removed the Hard drive in working condition, (I have tested it by plugging it into my Windows desktop with a SATA cable and it worked) and deleted everything from the drive. When I hold down Cmd+R, I get 'BOOTMGR is Missing, Press Ctr-Alt-Del to restart' I was running 10.7 Lion before it cracked.

I need to reinstall OSX, I have no additional resources beyond the computer itself.

I have the new hard drive, and understand how to put the the physical drive into the computer, but I'm not sure how to reinstall OSX Lion without having a disk to reinstall from.I do not have a physical OSX disk though.

The hard drive in my early-2007 MacBook cracked, and I had to get a new one.

Install mac new hard drive