I was trying to update my operating system on my 2011 MacBook Pro. The install said it failed - and to quit the install and restart. But when I tried to restart - the only option was my last operating disk - in which a prompt states there is insufficient data to use And restart.
What should I do? My computer is in a constant loop of a failed install.
MacBook Pro (17-inch Early 2011), Mac OS X (10.7.5), Please help!
Your information is a bit unclear. I think you need to do this: Shut down the computer by pressing and holding down the Power button until the computer shuts down. Restart the computer. Now, exactly what happens when you do that?
It restarts into the installation. Then says it failed. Then says to restart. Then says i can't with the disk option. Then I have to shut it down again. When it restarts - it tries to install again.
What OS version is on the computer now? I don't really know because you say your model is a 2011, but you've posted in the 2006-2010 forum. Do you have data on the drive you need that isn't backed up?
I Didn't realize I posted in the wrong forum.
Iits ts whatever the last system was.
Install or Reinstall OS X from Scratch
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
the Security button and set the Zero Data option to one-pass. Click on
the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
because it is three times faster than wireless.
This should install the version of OS X that you had installed.
will this erase everything from my computer?
Thank you for your help, btw!
Yes, it will. You did not say anything, so I thought you were OK with this. If not, then you can try this first which will not erase anything:
Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the indented Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless and more reliable.
Alternatively, see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.
It says the Disk Utility can't this disk.... Disk, and restore your backed-up files.
How do I back-up files now?
If the computer won't startup, then you cannot backup your files without first replacing the drive or trying to access it from another Mac using Target Disk Mode if your computer has either Firewire and/or Thunderbolt ports.
If you must start from scratch, then:
Install or Reinstall OS X from Scratch
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
the Security button and set the Zero Data option to one-pass. Click on
the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
because it is three times faster than wireless.
This should install the version of OS X that you had installed.
MacBook Pro frozen in OSX installation
