We have a Macbook Pro 15 Last 2011. The computer starts to boot, it shows the progression bar, then it disappears and the circle just spins.

enter image description here

I have tried safe mode and it just spins.

I just ran the hardware test and it returned no problems - I am trying to boot into safemode now

enter image description here

This screen has been running for 15 minutes now - Eventually the grey bar disappears and it just spins

EDIT:: I booted in startup mode and chose the disk utility - It said the HD was fine :(

EDIT:: I am able to boot from a external thunderbolt drive

Ran in verbose mode. Last couple of lines after rebuilding b-tree:

The volume Macintosh HD could not be repaired

launch_msg(): Socket is not connected
  • Have you the Hardware Diagnostics? Press D during startup.... support.apple.com/kb/HT1533?viewlocale=en_US&locale=en_US Sep 12, 2014 at 14:09
  • @JBRWilkinson - Yes I ran the test - no problems - I am running safemode now Sep 12, 2014 at 14:32
  • Start in Verbose mode (line by line) to see where it hangs up. (Option+v)
    – Ruskes
    Sep 12, 2014 at 15:46
  • @Buscar웃 Rebuilding catalog B-tree Sep 12, 2014 at 15:52
  • @Buscar It's not ⌥V, it's ⌘V for Verbose boot
    – grg
    Sep 12, 2014 at 15:53

1 Answer 1


If you are able to boot from external drive, then your boot sector obviously has a problem.

Using the CMD+V key combination will boot in the verbose mode if you care to investigate and know where it hangs.

Using the Cmd + R key combination and restoring OS is the best option here.

This keyboard combination only works on Mac OSX 10.7 and later. If you want to restore the OS on earlier versions, you have to use the installation CD.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .