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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456 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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1answer
160 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 ...
3
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1answer
77 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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2answers
164 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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1answer
43 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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1answer
92 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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22 views

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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1answer
69 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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50 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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1answer
91 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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0answers
12 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 ...
2
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1answer
311 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" ...
2
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1answer
414 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 work....
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1answer
46 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 ...
3
votes
1answer
13k 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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2answers
111 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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2answers
4k 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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2answers
129 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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0answers
77 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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0answers
39 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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0answers
43 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. ...
0
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1answer
101 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 / ...
2
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3answers
3k views

OS X Internet Recovery Globe stuck

I've deleted my recovery disk; or you can say more accurately, I've completely erased, by mistake, my SSD. Now, my only option is to recover via Internet, but the globe on Internet recovery keeps ...
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0answers
107 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 /...
3
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2answers
11k 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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1k 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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0answers
219 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 ...
2
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1answer
326 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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0answers
135 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 ...
0
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1answer
135 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 ...
2
votes
1answer
201 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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1answer
461 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
454 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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0answers
83 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 ...
1
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1answer
676 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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0answers
196 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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2answers
44 views

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 ...
0
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1answer
348 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 ...
2
votes
1answer
181 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 ...
0
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1answer
520 views

I accidentally removed all files with “rm -rf *”. How can I recover?

I accidentially deleted every single file in my home folder of my Mac using rm -rf * in iTerms. I intended just to clear one folder, but clearly did not know what I was doing. Yes feel free to laugh, ...
0
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1answer
184 views

Do I need the DVD to reformat 2011 MacBook Pro with OS X Yosemite

I have a MacBook Pro from early 2011 which was shipped to me with a DVD that I could use to reformat the machine, which I do not have with me at the moment. I have upgraded to OS X Yosemite though, ...
0
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1answer
2k views

mid-2009 macbook pro - erased. Now “Mac OS X cannot start up from this disk”. (and cannot install to this disk!)

I have a mid-2009 macbook pro, and the original 10.6.8 installer DVD that it came with. I booted up in recovery mode, and erased the HD (whether or not that was a good idea). My intention was to get ...
2
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0answers
49 views

Recover pictures from damaged phone [duplicate]

My iPhone 4 was submerged in water weeks ago. It will turn on, but the slide to turn on/enter password is not working so I can not access anything on the phone. I want to recover pictures and videos ...
0
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0answers
24 views

Can't boot after graphic error

Specs: MBP 15-in late 2011 running Yosemite 10.10.3 Background I have an external monitor that I've been using for about a year, but recently the Thunderbolt-to-HDMI adapter I have has been giving ...
0
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1answer
122 views

What is a “standard” boot camp partition setup?

I am trying to upgrade to 10.10(.4) - currently I am at 10.9.5. I had previously done some "creative" :) partitioning of my rMBP SSD - everything was working fine, running Boot Camp as well. However,...
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2answers
1k views

Unable to use gpt to restore efi partition

I accidentally deleted my efi partition, which I now know is bad news bears. I found a guide here to restore it without losing data, but even though I'm booting from usb and have unmounted all ...
3
votes
4answers
3k views

Disk structure error reported in Onyx but not fixable via the Disk Utility in Recovery Mode

On Yosemite 10.10 Onyx returns the following error: Error: -69845: File system verify or repair failed Underlying error: 8: POSIX reports: Exec format error The disk needs to be repaired. I ...
0
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2answers
23 views

Time Machine on Mac

Does the Time Machine program backup system plus data ? Will is restore the computer exactly to what is was including both system and data (ie. emails, photos, documents) ?
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0answers
296 views

Can't boot normal or from recovery HD

Yesterday my MacBook Pro 15" Retina stopped booting. I see the Apple logo and a progress bar which gets stuck at about 10%. What I tried so far: Booting in recovery mode - same, progress bar stuck ...
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2answers
106 views

What is wrong with my mac?

Suddenly today my good old MacBook pro from 2012 won't start. I get the gray screen of death. I have tried safe boot, recovery boot and Internet recovery boot and it all results in a static gray ...