Disk Utility stopped repairing Mac HD - Now what?

My computer has been running slow so I cleaned up my desktop, trashed a bunch of old files and went to verify permissions. I was then told to use disk repair.
In the middle of doing so I got this message - "Disk Utility stopped repairing 'Macintosh HD'. Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files."
Besides occasional slowness, my computer is working fine and I was able to get back to my desktop. Is this slow down issue going to get progressively worse if I don't reformat the disk? Should I do what the message says? If so, how? I've never reformatted before...it sounds a little scary.
I back up about once a week (just did so this morning) so I should be good to go there. I have AppleCare. Is this something I should bring the computer in for or can I fix this issue on my own?
Thanks in advance for any help.

Do as instructed. Get your self a backup drive if you don't have one. Backup your files. Then erase your OS X volume and reinstall Mountain Lion.
Install or Reinstall Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard 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. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
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 Lion: Select Reinstall Lion/Mountain Lion 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.

Similar Messages

Disk Utility stopped repairing the disk. I was instructed to backup as many of my files as possible.reformat the disk and store my backed files. I am using an I Mac 2010. I am not sure what caused this problem. I use time machine

Disk Utility stopped repairing the disk. I was instructed to backup as many of my files as possible.reformat the disk and restore my backed up files. Since I use time machine, can I assume that all my files and programs can be restored from my recent back ups?

Hi jeromefrodia,
Welcome to the Apple Support Community!
I understand that you are concerned about your data before reformatting the disk. Because you use Time Machine your information should be safe. Please refer to the attached article for information about what Time Machine backs up and how to restore from that backup.
Mac Basics: Time Machine backs up your Mac
Cheers,
Joe

DISK UTILITY STOPPED REPAIRING MACINTOSH HD!

So initially, my mac just was stuck on the white screen with grey apple logo and the spinning wheel. It wouldn't move! So I held down the power button and turned it off, let it rest for good 8 hours, turned it back on and it was still the same! With the help of some online postings: command + control + p + r, I got to the Disk Utility page and I tried checking for any damage. For most part everything was"ok" or "clear"! Then I ran 'VERIFY DISK' for MACINTOSH HD and some problems occurred. I clicked on 'REPAIR DISK' as promted. It said "DISK UTILITY STOPPED REPAIRING MACINTOSH HD: Disk Utitlity can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
I HAVE ABSOLUTELY NO IDEA HOW TO DO THAT ! I have not backed up a single thing on my mac!

If you want to preserve the data on the boot drive, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data, you can skip this step.
There are several ways to back up a Mac that is unable to fully boot. You need an external hard drive to hold the backup data.
1. Boot from the Recovery partition or from a local Time Machine backup volume (option key at startup.) Launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
2. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
3. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

Disk Utility stops repairing Time Capsule backup with no info

After having problems backing up to a long-term stable backup on TC, I have tried using Disk Utility to repair the sparsebundle.
The repair begins, but never finishes. And no details are left in DU to decode what happened.
Does this mean sparsebundle corrupt? Or a problem with DU?

Sugith Varughese wrote:
Wow, DU by ethernet IS much faster than wireless!
Unfortunately, DU said the sparse bundle was okay, but when I tried another TC backup, it failed again.
I assume this means there's no option but to delete the sparse bundle and start again?
No. There may be nothing at all wrong with the TC or sparse bundle. We need to know why it failed. Without the actual message(s), we're shooting in the dark. Start with #C2 in Time Machine - Troubleshooting. It will show you how to locate the message(s) that describe the problem, then help you fix it.
If that doesn't help, post back with details, including all the messages, your setup, what you've done, and the results.

Disk Utility stopped repairing "disk1s2"-a partition from an external hard disk

I bought a new Seagate Go Flex Desk 2TB exernal HD.Three days ago one of the three partitions(1.7TB) on this HD stopped working,when i tried to repair the volume in Disk Utility it stoped repairing, showing the following message-
Verify and Repair volume “disk1s2”
Checking file systemChecking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Invalid sibling link
Rebuilding catalog B-tree.
The volume could not be repaired.
Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
Now the problem is after starting it only shows the other two partitions,in Disk Utility the problematic volume no longer bears the name given by me and shows 'disk1s2' in dimmed letters. I had some nessesary piece of data in that volume.My question is-
1.Is there any oter software that i can try to fix with?
2.If i reformat the disk and ceate the partition again would it work smoothly?
3.there were power cut off 7-8 times when using the HD,if it's the reason ten why the other two partitions are working properly?One of these volumes used to contain Time Machine Back-up.
Thank you in advance for your suggestions.

I have (kind of) a simmilar problem with yours, does DiskWarrior really helped?? Since it's not free, is there any other program that might helped ???

Disk Utility Cant Repair my OS X Drive

Hello There,
I Had A Problem With my OS X Basic 3TB Hard Drive. It Has Two Partition 1tb Is My OS X drive And 2tb Is For My Data. When I Start Up My I Mac It Gives Me A Loading Sign After That When It Completes My I Mac Shutdown. I Goto Power on By CMD+R And Select Disk Utility To Repair My Drive. There My OS X Drive Is Disable And My Data Drive Is Mounted And Working. I Click On Repair By Selecting My OS X Drive But It Give Me A Dialogue That "DISK UTILITY STOPPED REPAIRING MACINTOSH HD" (Disk Utility Can't Repair This Disk. Backup As Many Of Your Files As Possible, Reformat the disk, And Restore Your Backed Up Files.)
Excuse Me... Mr. Computer I Need My Important Files In This Partition, So How Can I Reformat This
Please Help Me Is There Is Any Way To Repair My Disk.. Please Please Please....
I Am Using I Mac 27 Inch With Mavericks 10.9.3

Why, why, why would you initial-cap every word in your post?
Do you have a backup?
Do you have an external hard drive? You should have an external HD with an operating system and some repair utilities installed on it, for backing up your internal drive and for situations like this. Disk Warrior may be able to help if the problem with your system partition is directory damage. Another app to have on hand is Data Rescue 3.

Disk Utility: cannot Repair Permissions, even on Leopard installation disk

After reinstall of iLife '08 and Software Update completed, I ran Repair Disk Permissions. Got an immediate red note "error: The underlying task reported failure on exit (sic)." with a flag: "First Aid failed. Disk Utility stopped repairing permissions on 'Mac HD...' because the following error was encountered: The underlying task reported failure on exit."
I went to my Leopard Installation disk and ran "Repair Disk." No problem found. From the Installation disk, ran Repair Disk Permissions. got the same RED INK comments and flag, First Aid failed.
Restarts don't help. Also, so far I have not found an application which is NOT working despite this Disk Utility problem, happy to report ;-))
Additional background. I was reinstalling iLife to fix iPhoto after a clean reinstallation of Leopard and reincorporation of files and apps vis Time Machine. It had been several weeks and iPhoto appeared to be the only app which was not quite right.

Disk Repair can trigger "underlying task" but I've never heard or seen a Permissions Repair do so.
You should never use the DVD to repair permissions. You should be using the same OS version. And of course you can always repair permissions from your boot drive; or from backup/clone or alternate "emergency" drive. Otherwise, the DVD and older version of DU will be wrong.
I know I read that on MacFixit, but I am not sure I bookmarked it.
Don't rely on Apple First Aid, even a clean bill of health doesn't mean there aren't problems which Disk Warrior can deal with.

Have a mac book pro that crashed. ran disk utility to repair. comp booted and ran for short time. then crashed. ran repair again. disk utility said it could not repair files and i needed to format hard drive and start again. now nothing works

have a mac book pro that crashed. ran disk utility to repair. comp booted and ran for short time. then crashed. ran repair again. disk utility said it could not repair disk and needed to format and start again.
comp said it could not unmount disk and now when comp trys to boot all i get is a question mark on the screen. help

Erase and Install
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Quit DU after formatting completes and return to the installer. Install Snow Leopard.
5. After restart into Snow Leopard download and install Mac OS X 10.6.8 Update Combo v1.1.

HT1379 I had to restart by resetting the NVRAM/PRAM. Now I have a window showing OS X Utilities. My options are restore from Time Machine Backup (which I could do), Disk Utility to repair or erase, get help online or reinstall OS X. What should I do?

I had to restart by resetting the NVRAM/PRAM. Now I have a window showing OS X Utilities. My options are restore from Time Machine Backup (which I could do), Disk Utility to repair or erase, get help online or reinstall OS X. What should I do? The problem began when I tried to restart my computer and the only thing I saw was the grey screen, Apple logo, and the timer; the computer wouldn't restart from there.

I searched through trouble shooting options on the Apple Support page and was able to make it this far.

Can anyone help me?Time Machine couldn't complete the backup to... An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk. What is the problem? I've made no changes.

I recently starting receiving the error message "Time Machine couldn't complete the backup to... An erro occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk. I have had no problems backing up my MacBook Pro 2011 to my Western Digital My Book Live through a Linksys EA4500 router until recently. I've made no major changes. I've ran a diagnosis on my back up drive with no problems. The Time Machine back up starts, but about after about 5 to 10 minutes I get the error message. I can see the shared drive in Finder. The light on the drive blinks while it starts the back up. I can see the shared folders on the networked drive. The backup process starts but for some reason it just stops. Can anyone help?

You can't repair a network volume in Disk Utility.
Backing up to a third-party NAS with Time Machine is risky, and unacceptably risky if it's your only backup. I know this isn't the answer you want, and I also know that the manufacturer says the device will work with Time Machine, and that it usually seems to work. Except when you try to restore, and find that you can't.
If you want network backup with Time Machine, use as the destination either an Apple Time Capsule or an external hard drive connected to another Mac or to an 802.11ac AirPort base station. Only the 802.11ac base stations support Time Machine, not any older model.
If you're determined to keep using the NAS for backup, your only recourse for any problems that result is to the manufacturer (which will blame Apple.)

How do I do this: "This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk?"

"This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."

Stick the disk in, reboot holding c.
Disk Utility is a menu option about the 2 or 3rd screen in the installer. (don't install OS X!)
Because your booted form the installer disk, you can repair the disk.
Quit and exit the installer and reboot.
If your drive is not repaired, make a note of all what it says, for Apple to use.
Reboot and get your files off to a external drive,
Take the note and your comptuer to Apple for a warranty/Apple care call, they will replace the drive.

Hi, i had recently bought a toshiba 3.0, 1.5tb hdd and i had to change the settings through Disk Utility on my mac to be able to transfer files from my mac to my HDD. The problem i am having now is, it wont connect to my TV or PS3? Can someone please help

Hi, i had recently bought a toshiba 3.0, 1.5tb hdd and i had to change the settings through Disk Utility on my mac to be able to transfer files from my mac to my HDD. The problem i am having now is, it wont connect to my TV or PS3? Can someone please help

"....and i had to change the settings through Disk Utility on my mac to be able to transfer files from my mac to my HDD"
What do you mean by that? Did you format?

Disk utility stopped verifying; need repair... over and over and over

I've gone through the restart, Command+R drill 4 times. Repaired the disk using "Disk Utility." Restarted after repair, ran disk utility to verify the repair and BAM disk utility stops verifying and instructs me to restart ... etc.
The errors have been consistent: orphaned blocks, invalid volume free block count. But when I use utility disk after restarting and pressing command+r, the "repair disk" does not appear to do anythign beyond "Load and Verify" freespace summary and block accounting. Am I missing a step?
Any suggestions appreciated.

That article does not pertain to the OS you are running. "This article has been archived and is no longer updated by Apple."
It pertains to using fsck not Disk Utility for:
Products Affected
Mac OS X 10.3.9, Mac OS X 10.4, Mac OS X 10.5, Mac OS X Server 10.2, Mac OS X Server 10.3, Mac OS X Server 10.4, Mac OS X Server 10.4.7, Mac OS X Server 10.5

HT1782 My usb pendrive was 16gb , but when i erased it through disk utility , its total space is now showing just 2 gb . What can i do to restore the remaining space

pls help me

There was some max size for fat16. 2gig max seems familiar to me.
Log in disk utility. It should tell you what the size of the 'drive' is.
The terminal application will give detailed information that you can copy & paste to this thread.
Macintosh-HD -> Applications -> Utilities -> Terminal
mac $ diskutil list
... clipped ...
/dev/disk2
   #:                   type name               size      identifier
   0: FDisk_partition_scheme                    *3.8 GB   disk2
   1:              Apple_HFS Recover            3.8 GB    disk2s1
wait for the $ then type diskutil list then press enter.
in my case, I have a '4gig' flash drive listed. 3.8gb is close enough to 4.gig.
mac $ df
Filesystem              512-blocks      Used     Avail Capacity Mounted on
/dev/disk1s16            569927296 135962488 433452808    24%    /
devfs                          225       225         0   100%    /dev
fdesc                            2         2         0   100%    /dev
<volfs>                       1024      1024         0   100%    /.vol
/dev/disk2s1               7913360   5744608   2168752    73%    /Volumes/Recover
... clipped ...
another view of my 4gig flash drive is /dev/disk2s1
Post the results fo diskutil list & df here. Thanks.
Try disk utility again. Try formatting again. Did you create multiple partitions?
Be sure to partition the correct dirve. See what disk utility says about the size.
What version of Mac OS are you running?
Robert
Robert

Disk Utility stopped verifying "Macintosh HD"

I verify my disk and disk permissions every month or so, when I tried to verify the disk today I received the following message -
"Disk Utility stopped verifying "Macintosh HD"
The alert goes on to recommend I restart using my installion disk - since I'm running Lion - I don't have an installation disk.
Details -
MacBook Pro Mid 2010
Shipped with Snow Leopard, upgraded to Lion - now running 10.7.2
I am backed up with Time Machine right up until today.
Details from Disk Utility
Verifying volume “Macintosh HD”
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Volume bitmap needs minor repair for orphaned blocks
Checking volume information.
Invalid volume free block count
(It should be 23464181 instead of 23330172) ***
The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
*** these numbers chang each time I attempt to verify.

Firstly, you should never bother with Verifying the drive. If you're going to do anything then repair it:
Repair the Hard Drive - Lion
Boot from your Lion Recovery HD. When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then quit DU and return to the main menu. Upon completion select Restart from the Apple menu.
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. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Disk Utility stopped repairing Mac HD - Now what?

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