An OS X feature that hides a Recovery HD on Macs to facilitate maintenance, recovery and reinstallation if the OS becomes corrupt. Topic of recovery-mode-ios, data-recovery or file-recovery are unrelated to the recovery category here.

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Unable to boot into recovery mode on El Capitan MacBook Air

I want to disable System Integrity Protection, So i am trying to run this command csrutil disable On recovery mode, But i am not able to boot in Recovery mode, It keep showing user login screen, I ...
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40 views

How to restore my Macbook Air thoroughly without a OS X recovery partition?

I brought my Macbook Air(Mid 2015) July 2015. Then I started endlessly installing different linux distributions on it. One day, I make a mistake and my OS X recovery partition was deleted. Now I ...
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37 views

Why can't I format my blank SSD from OSX Recovery?

The SSD in my Macbook Pro died suddenly. I bought a blank one, installed it as the internal drive, and booted into recovery mode by holding Command + R. After letting it connect to WiFi and download ...
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24 views

Can I boot my recovered SSD as a Mac OS X installation

I recovered an SSD from an old, upgraded 2008 Macbook Pro with a broken keyboard in order to recover the data from it. Initially I was planning to put it in my other Mac Pro and simply copy the data ...
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13 views

MacPro 2.1 won't boot from USB nor from MacBook via target mode

My Mac Pro 2.1 (I believe 2x 2.33 quad / 32GB ram / startup disk is a SSD / OS X Yosemite) suddenly started showing up the ?-folder instead of booting so I thought the SSD died. I connected the Mac ...
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67 views

Accessing Internet Recovery

I have a late 2012 model iMac that I'm preparing to sell. I want to reset it to factory defaults, so Internet Recovery sounds perfect. However, Cmd + Option + R during boot does not work. For that ...
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45 views

Prohibited symbol trying to boot into Recovery Mode

MacBook Pro early 2011 model with El Capitan (10.11.1 - edit - just noticed there's an update. Not sure if relevant but I'm running it now). I can boot fine into OS X and log in. But I'm trying to ...
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21 views

Can't boot, can't do a recovery, can't reinstall

I try to start in single-user mode and I get about 7 lines of text and 3 lines of dots. It says: Efiboot loaded from device: (then a long alphanumeric number) Boot file path: ...
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26 views

Prohibited sign - Can't boot after trying to open Raspian SD Card

So I was following this tutorial https://www.youtube.com/watch?v=Eo4HphBdR10 and opened the folder of the SD Card. The Screen went black and I rebooted. Now I get a Prohibited Sign on boot up. In ...
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79 views

Flashing folder with question mark OS X 10.11

It seems like I totally messed up my MacBook Pro Retina (15" mid 2014) today. I'll try to tell you the story as short as possible. My MacBook was encrypted and I decided to dual boot Arch Linux on ...
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38 views

Unable to Boot MacBook using any means after attempted Fedora Install

Wondering if anyone has any last ditch efforts I can try here to salvage my macbook! I recently attempted to install fedora to dual boot on my Late 2011 Macbook Pro, the install crashed, the ...
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58 views

Disk utility detecting error in single user mode, but not when disk utility is opened via recovery mode

I verified the integrity of my Macintosh HD (MacBook Pro 13" 2012, OS X Yosemite) with Disk Utility when I was logged in as a user and it reported this problem: Invalid volume free block count ...
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61 views

How to mount a DMG image created with dd?

I created an "emergency" image of my dying HD using the procedure explained in Recover a dead hard drive using dd. Now when I try to mount the dmg file I get the message: "The following disk image ...
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44 views

xxd not found in Recovery Mode, Mac OS X 10+

In Recovery Mode, I was trying to access my password hashes, except bash 3.2 returned command not found for xxd. Any help would be appreciated.
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62 views

How to get the password hashes for a user in Mac OS X 10+, in recovery/single user mode?

I would like to view the hashes on my Mac, in either single user mode, or the terminal in recovery mode. I tried to follow the steps described in OS X 10.9: where are password hashes stored. But I ...
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32 views

MacBook air is messed up, can't erase the hard drive from recovery

Something happened when installing El Capitan and now I have only one partition in my hard drive with only 30 gigs of space when it's supposed to be 128. I can't seem to erase anything. Any advice?
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51 views

Entering in recovery system trouble

When I'm trying to enter in recovery system through pressing cmd+R I'm getting OS X Internet Recovery instead of Utilites window. How to avoid it?
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How do I update the RecoveryOS to version 2.0 on my Macbook Pro?

A few months ago I upgraded to OS X El Capitan. It has been mostly fine except for the ever so annoying System Integrity Protection (SIP) feature. Ever since I had upgraded, I have found my rEFInd ...
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31 views

How can I tell what version of Recovery HD OS is running while I'm booted to the recovery software?

How can I tell the version of OS X (and the build) that runs on Recovery HD while I'm running in that mode? The Apple menu has no "About" menu that shows that information when you're running normally. ...
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26 views

Concern about a compromised version of the OS

I was reinstalling the OS on my Mac via Internet Recovery using a wifi connection. As it wasn't connected to a power source, the screen of my Mac would constantly go black and I would press the screen ...
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45 views

Boot Into Recovery Partition After Installing Linux.

I want to install Linux on my mid 2014 Macbook Pro for educational purposes. However, I don't want this to be permanent. I've tried to partition the hard drive and install both OSs but I have not ...
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7 views

As part of “nuking it from orbit”, is it safe to reinstall the OS using Recovery?

Context: I've erased my hard drive and had OS El Capitan reinstalled via a bootable drive from a Genius Bar many times leading up to me asking this question. After going through the process of erasing ...
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1answer
152 views

I accidentally deleted Macintosh HD while installing Windows?

I installed Windows on my Mac through bootcamp but I accidentally deleted Macintosh HD in the process. I tried to use the internet recovery but it stopped and says apple.com/support -2104F" ...
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120 views

How to recover files from command “git clean -df”

I accidentally run the command "git clean -df", so I lost many directories and files, I want to recover them, I don't have backup in time machine. I tried some software to recover, but they don't ...
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35 views

Recover my lost data

I wanted to delete my Linux partition, but I don't know why my OS X partition was also deleted. So, I then reformatted the partition and installed a new OS X (Yosemite) on that partition. I am ...
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4k views

csrutil: command not found

I am using a Mid 2012 MacBook and recently upgraded it to OS X 10.11 El Capitan. I was having trouble with it's new SIP feature and wanted to disable it. I tried to boot into OS X Internet Recovery ...
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91 views

Configure MBP back to factory but with most recent OS

What I'd like to do is get my MBP back to an "out of the box state": fresh install, recovery partition. However, I believe my partition is for OS as it was on October 2013. What I'd like is a fresh ...
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659 views

Can't start Mac in Recovery Mode

When I start it, hold alt, then choose "Recovery 10.11" it takes about 50 minutes for the waiting bar to fill. After that, nothing happens (I tried leaving it up for about about 10 hours and 36 ...
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64 views

How to recover a dead Mac mini?

A friend of me just deleted everything by running sudo rm -rf / on his Mac mini. Yeah I know... (Another friend of us just create a cloud virtual box and invite us to play, that poor friend asked how ...
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72 views

How to create (the missing) El Captain recovery partition? [duplicate]

I upgraded from Snow Leopard to El Captain. Before upgrade I had a bootcamp partition, and a third FAT32 partition. this caused some complications in the upgrade process and I had to delete the El ...
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30 views

Viewing the progress of a corestorage revert operation?

I'm in the middle of migrating to some newer hardware, and to make this a little bit easier on myself, I'm decrypting my hard drive on the older machine. To do so, I've run: diskutil corestorage ...
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34 views

Macbook Pro 2009 - Cannot Boot Into OSX, or ANY Recovery Software

As the title states, I'm attempting to boot into OSX, I'll get a debugger panic, I clear the PRAM, I'll then attempt to boot into recovery mode, etc. Even the web recovery still calls the panic. ...
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73 views

I accidentally removed way too many files with `rm -rf`. Anyway to recover?

While trying to move a git repository, I ran rm -rf desktop and wiped every file I had there. Normally this would not be that big of a deal since I use GitHub, but I had several hundred screenshots / ...
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605 views

OS X Internet Recovery Globe stuck

I've deleted my recovery disk or you can say, I've erased by mistake my SSD completely. Now, my only option is to recover my internet, but the globe on internet recovery keeps on spinning and stuck at ...
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77 views

Choose recovery hd as startup disk from the gui

is it possible to select the recovery hd as startup disk from the gui? i often make experiments, so it would be nice to do it so. or is there a command line option? I tried: sudo bless -mount ...
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5k views

csrutil is broken on Recovery HD

I'm trying to turn off SIP on my MacBook Pro (Retina, 15-inch, Late 2013) but when I run OS X in Recovery Mode no csrutil is available—there is no such command in /usr/bin as well. So I tried to run ...
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995 views

Upgraded to El Capitan, now computer running slowly, disk space changing, software not working

Not being computer savvy, I think I made all sorts of mistakes when I decided to upgrade my macbook pro to El Capitan yesterday but I need to figure out how best to go forward. Mistake 1: I made the ...
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117 views

Recovery mode Disk Utility can't see new internal hard drive

Lots of similar questions, but no one seems to be having the exact problem I am. Hard drive on my mid-2012 MBP (Mavericks now, but originally Lion) died; I do have backups (including a clone of the ...
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1answer
204 views

Deleted Macintosh HD. Need to create a new partition/ partition table

I was trying to install El Capitan. I went to erase Macintosh HD in recovery> disk utility as I wanted to do a clean install. It then deleted the Macintosh partition then gave me an error code saying ...
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88 views

Enabled Guest User Account, the Password Box Doesn't Show Up, Mac requires Recovery OS

I enabled the Guest User Account. Then, I tried turning off the Mac and then powered it on again to check if there are already two accounts on my start-up screen- mine, and the guest's. I tried ...
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90 views

Mac Mini white screen - no recovery / no os installed

I wiped (all partitions) a MacMini without knowing it was running bootcamp. This caused it to go to a Windows screen that said "no bootable device" when I used cmd R during boot to select a DVD or USB ...
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1answer
141 views

Recovery HD present but can't boot from it

I fiddled with partitions on my MacBook Pro with OS X Yosemite, but now I'd like to reinstall the OS to restore original setup. Recovery HD is there, but if I press CMD + R at boot, Internet Recovery ...
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317 views

Unable to restore/reinstall/erase from recovery

I've just tried to install the El Capitan GM, which failed half way through with the error "This Core Storage operation is not allowed on a sparse logical volume group" and gave me the option to ...
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1answer
331 views

Cannot access Recovery Mode on Mac OS X

I am using a model A1278 Mac and I need to reinstall the OS on it, or reset it. I am attempting to open the recovery mode by using the Cmd + R method but that did not work, I then attempted to use the ...
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59 views

Is there a way to recover pictures from a destroyed iPad?

An iPad mini from a friend was ran over by a car and it is completely non nonfunctional. I tried to connect it to charger to see if it was draining current but it is completely dead. There are some ...
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499 views

What I got with Recovery Disk Assistant?

Environment: Mac Mini Mid 2010. Original OS is Snowleopard Current OS is Yosemite Tool. Recovery Disk Assistant which is downloaded from Apple website. Purpose: Make a recovery Yosemite disk on ...
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104 views

Macbook Pro a1211 recovery

There was a laptop Macbook pro a1211, and at one point, covered with darkness, will not load the operating system. When loading shows a gray screen and company logo Click Startup option. There is a ...
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Blinking folder icon - safeboot, recovery hd does not work

When I try to start my MBP early 2011 with Mavericks OS installed I get a blinking folder icon. SMC reset, PRAM reset did not resolve the issue. The MBP does not boot into the safe mode too. When I ...
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160 views

Reboot fails after failed disk erase when restoring from Time Machine

I have an Early 2013 Macbook Pro Retina 15" with 512GB of SSD storage. My update to Yosemite 10.5 failed for some reason and I was left with an unbootable system and severe file system errors that ...
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83 views

Unable to reset password in Recovery Mode

Unfortunately, I am unable to log in to my Mac Mini OS X (10.8.5). I am trying to recover the password with Recovery Mode by pressing CMD + R. I executed the resetpassword command, but the window ...