Boot from your installation disk by holding the "Option" key down. This will load the bootloader, where can choose the OSX installation disk to boot from. On about the second page you will see the drop down menu at the top of the screen. Go to Utilities - Disk utility and run the verify. If needed run the repair. Then try booting from the hard drive. If this fails reinstall the system.
+
You can first try starting in Safe Mode by holding down the Shift key. Next try booting from your installation disk by holding the "Option" key down. This will load the bootloader, where can choose the OSX installation disk to boot from. On about the second page you will see the drop down menu at the top of the screen. Go to Utilities - Disk utility and run the verify. If needed run the repair. Then try booting from the hard drive. If this fails reinstall the system.
Boot from your installation disk by holding the "C" key down. On about the second page you will see the drop down menu at the top of the screen. Go to Utilities - Disk utility and run the verify. If needed run the repair. Then try booting from the hard drive. If this fails reinstall the system.
+
Boot from your installation disk by holding the "Option" key down. This will load the bootloader, where can choose the OSX installation disk to boot from. On about the second page you will see the drop down menu at the top of the screen. Go to Utilities - Disk utility and run the verify. If needed run the repair. Then try booting from the hard drive. If this fails reinstall the system.
Boot from your installation disk by holding the "C" key down. On about the second page you will see the drop down menu at the top of the screen. Go to Utilities - Disk utility and run the verify. If needed run the repair. Then try booting from the hard drive. If this fails reinstall the system.