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HD is corrupt; Recovery HD not found

I am trying to resolve an issue on my Macbook Pro. Using Disc Utilities, I need to boot from the Recovery HD. I did so, then restarted the computer and after the chime press and hold down the COMMAND and "R" keys until the computer starts up. However, when I do, no Recovery HD appears.

MacBook Pro, OS X Mountain Lion (10.8.2)

Posted on Apr 22, 2013 2:04 PM

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17 replies

Apr 22, 2013 3:44 PM in response to Alberto Ravasio

Using "the usual way" to get to Disk Utilities shows that I have a corrupt disk. Using the Recovery mode shown above I ony have the high level Macintosh HD and the startup disk, Mac OS X Base System. Neither show a corrupt disk when I run Repair. However, when I load Safari using a normal bootup, the crash continues each time I use it.


For reference, neither Firefox nor Chrome fail at all, so the problem must have something to do with Safari.

Apr 22, 2013 5:29 PM in response to Compukid

That is completely false. All Mac computer that have Lion or Mt Lion installed on them have the ability to start the system from the Recovery HD partition using the Command+r keys. That is if they have a Recovery HD partition on a drive connected to the system. Whether that drive is internal or external.

Edit: The Recovery HD must be on the internal drive.


Some Mac computers do not have the ability to use the Online Internet Recovery system which is the Command+Option/Alt+r keys.

But if the system has the Recovery HD partition using the Command+r key will boot to it.

Compukid wrote:


Some Macs do not have the capability to start from Command+R and you may need to make a USB Recovery drive to boot from. Look here for more information if you want to see if you can use Lion Internet Recovery (boots from Apple's servers if the local recovery fails)

http://support.apple.com/kb/HT4904

Apr 23, 2013 3:27 PM in response to Shotgun00

Shotgun00, I agree with Alberto. My computer does not start from Command-R, but I have Lion installed. I actually had to make a bootable USB drive for my computer to boot from it. Some computers just don't have the capability to start from Command-R. Also, there is no different shortcut between Internet Recovery and Local Recovery. The machine attempts to boot from Local first, and if that fails automatically goes to Internet.

Apr 23, 2013 3:58 PM in response to Compukid

Well it is not Command-R (That would be the CMD key "Plus/Also" (and I'm not sure why you are typing the Minus sign) the Shift key and the r key "R"). It is the Command key "Plus/Also" the r key (No Caps) held down together just after the startup Chime sounds.


If an Intel CPU base Mac can run Lion, is capable of running lion (Some can and some can't), it can start from the always included Recovery HD partition by using that key combo.


Now there are some Mac's that will not start from that key combo but it has nothing to do with the base computer, model year of the Mac. It is because that Mac is using FileVault encryption. Because of FileVault that key combo is disabled. Otherwise you could boot to the Recovery HD partition and Erase the Encrypted partition.

Apr 23, 2013 4:12 PM in response to Shotgun00

April 2008, USB (tried Command-R on a bluetooth keyboard on another computer and it worked, computer is the 2012 model), no FileVault.

EDIT: Yes, I have tried

diskutil list
which returned this:
/dev/disk0    #:                       TYPE NAME                    SIZE       IDENTIFIER    0:      GUID_partition_scheme                        *500.1 GB   disk0    1:                        EFI                         209.7 MB   disk0s1    2:                  Apple_HFS Macintosh HD            499.2 GB   disk0s2    3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

Apr 24, 2013 1:05 AM in response to Shotgun00

Shotgun00 wrote:


It is because that Mac is using FileVault encryption. Because of FileVault that key combo is disabled. Otherwise you could boot to the Recovery HD partition and Erase the Encrypted partition.


At the contrary. Read the final part of the page http://support.apple.com/kb/ht4718


Please note that Recovery System must be present on your computer's startup volume to use FileVault 2 (not an external Recovery System).


Moreover, if you have physical access to the computer that has FileVault enabled, the partition can be easily erased starting the computer in Target Mode or taking out the Hard Disk.

And suppose you need to repair your disk that was FileVaulted. You must admit that you will be very disappointed to find out that you can't.


Don't you?

HD is corrupt; Recovery HD not found

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