cant install mac os x boot disk on internal drive

If you have third-party utilities like DiskWarrior or DriveGenius, then you can use these to check your drive’s partition health and volume formatting, and similarly repair any problems you find.

Hold the Command key and click both the boot volume and drive device on your first Mac to select them.Attach your Mac to another one using a FireWire or Thunderbolt cable.Reboot your Mac and hold the T key down when you hear the boot chimes to get to Target Disk mode.This approach is likely more thorough, since you can use any disk management tools on another Mac (third-party ones included) to help address the problem at hand: Then shut down your Mac (do not reboot it), and perform an SMC reset ( see here) and PRAM reset ( see here) for good measure. Click Disk Utility’s “Repair Disk” button in the First Aid tab.Īfter performing these routines to fix your drive’s partition scheme and formatting, use Disk Utility to perform a permissions fix on your boot volume (this is in the same First Aid tab).Select your boot drive and boot disk on the sidebar.Open Disk Utility at the OS X Tools window.Reboot your Mac and hold Command-R at startup to enter Recovery Mode.Since it is the most convenient, using built-in options for recovery are the first to try however, there may be times when OS X will not boot to the recovery partition, in which case alternative approaches will need to be used:

To check your drive’s formatting when your Mac cannot boot fully, you have two approaches: use another Mac, or use your Mac’s built-in recovery options. Unfortunately, in some instances this issue will require you format your drive, so hopefully you have a recent and full backup of your data that you can restore. If your Mac does not start up, even in Safe Mode, then it indicates a problem with your Mac’s hard drive formatting. Since the file system’s integrity is crucial for the stability of your Mac and any data on it, if you are experiencing this problem, your best bet is to try fixing your hard drive’s formatting.

Cant install mac os x boot disk on internal drive