Failed Volume in Disk Utility

In Disk Utility I'm getting this message, as best that I can remember: "thread count is 420 should be 0, one volume cannot be repaired." Any suggestions?

In Disk Utility I'm getting this message, as best that I can remember: "thread count is 420 should be 0, one volume cannot be repaired." Any suggestions?
When Disk Utility can't repair something, in most cases a program like Disk Warrior or TechTool Pro can make the repair. Most people use Disk Warrior.

Similar Messages

  • Cannot repair disk errors for OSX boot volume using Disk Utility while booted from different disk

    I have tried three times to repair my boot volume (OSX 10.6.8 Snow Leopard) permissions using Disk Utility while booted up on a different volume (running Snow Leopard 10.6.4).  After hours of Disk Utility reporting that it HAD fixed the problems, an immediate click of "Verify permissions" immediately results in the apparently same continuous stream of permission errors.

    Then better luck next time around. Here are some ideas for then:
    How to Install Lion Successfully - You must have Snow Leopard 10.6.7 or 10.6.8 Installed
    A. Repair the Hard Drive and Permissions:
    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Utilities. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally. 
    If DU reports errors it cannot fix, then you will need Disk Warrior (4.3.) if DW cannot fix the drive, then you will need to reformat the drive and reinstall Snow Leopard.
    B. Make a Bootable Backup Using Restore Option of Disk Utility:
    Open Disk Utility from the Utilities folder.
    Select the destination volume from the left side list.
    Click on the Restore tab in the DU main window.
    Check the box labeled Erase destination.
    Select the destination volume from the left side list and drag it to the Destination entry field.
    Select the source volume from the left side list and drag it to the Source entry field.
    Double-check you got it right, then click on the Restore button.
    Destination means the backup volume. Source means the internal startup volume.
    C. Important: Please read before installing:
    If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
    You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
    The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update.  While the installation is in progress do not use the computer.
    D. To upgrade to Lion:
    Purchase the Lion Installer from the Mac App Store. The download will start quickly. Lion is nearly 4 GBs so a fast internet connection is essential. Download time could run upwards of 4 hours depending upon network conditions and server demands at the time.
    Boot From The Lion Installer which is located in your Applications folder.
    Follow instructions for installation.

  • External HDD is seen as drive but no as volume in Disk Utility (unmountable

    I've unplugged my external HDD without unmounting it and tried to hook it up via eSata to my MBP.
    Now Leopard won't see the Drive neither via USB neither via eSATA (i use expresscard/34).
    The drive is seen as USB device in Disk Utility, but not as Volume.
    The Dtive is formatted and partitioned for OSX. Has data on it.
    What can I do to make the drive appear again?
    Resetting PRAM and SMC didn't help.

    of course you should be aware that to run esata external drive is not hot swappable. user must power on before Mac and power off after Mac.
    even though you did the smc reset did you in fact disconnect all devices, and that means the externals to the point of powering them down and removing the connecting cables from all devices.

  • Format External Drive for HFS+ volume and FAT32 volume with Disk Utility

    I just bought a Seagate 1tb external drive from OWC and I want to partition it into a HFS+ (journaled I assume) volume and a NTFS volume. Objective: To manually backup critical folders from my wife’s Dell (running XP) to the NTFS volume and critical Mac folders from my PowerBookG4 to the HFS volume.
    My plan was to have my Mac (10.4.11) do the partitioning into a 350gb FAT32 volume for Windows and a 650gb HFS+ volume for Mac – then take the external drive to the Dell and have the Dell reformat the 350gb FAT drive to NTFS.
    First question – Is this possible overall?
    Second question – I haven’t been able to get my Disk Utility on my Mac to do the initial partitioning into one HFS volume and one FAT32 volume the way I want it. Is this step possible?
    I’m happy to be more specific about the steps I’ve taken if the basic plan is good. From what I’ve found in some forums so far, I think I’m on the right track but am unable to execute it. Thank you.

    Thank you Limnos for all your help. Last night I tried again and it worked! I’ not totally sure on what I did right but:
    • Both volumes on the new ext. driver were HFS (from my last attempt the other day) so I looked into a simple erase of one partition/volume into a different format, but DU did not offer a way of erasing it into MS-DOS(FAT32). But I think I did a simple HFS erase anyway of the volume I wanted to format to FAT32. There was nothing “in” that volume because this was a new external drive but I figured it could not hurt anything.
    • So then, I think I went back to Partition, locked the partition/volume that I wanted to keep in HFS+ for my Mac files, and (re)partitioned the other just erased volume to MS-DOS. I think I did it under the MBR option.
    • It worked! Not sure why but my Mac recognized both volumes one as HFS, the other as FAT32. Maybe someone will find this useful some day!!
    • Then, I hooked up the drive to my work Dell, the Dell found only the FAT32 drive (as expected), and I executed a short simple easy command I found on ehow.com (search for ‘convert FAT32 to NTFS’) to make that volume NTFS.
    Thanks again Limnos and everyone else!

  • No volumes in Disk Utility

    Dear Folks:
    I am working on a friend's 1 GIG 17" Powerbook with OS X 10.2.8.
    My firewire drive will not mount on the desktop. No icon appears.
    When I go to Disk Utility the pane which normally lists volumes is empty.
    What do I do?
    Thanks
    Raoul

    Thought you could use this info about getting FireWire to work!
    First, you should always Repair Permissions in Disk Utility before and after any update; I would do that now. If you installed your update with FireWire plugged in, your Mac may not recognize it anymore.
    Try resetting your FireWire ports by disconnecting all FW devices, shut down your Mac and unplug it from AC power (wall socket) for 30 minutes. plug it back in and try FW.
    If that did'nt work, download the combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try. Yours could be the 10.4.5 Combo update. Others reading, download the Combo that applies to your system.
    If that still did'nt get it Zap the PRAM. While restarting Mac hold down the following key combo Command-Option-P-R. Keep holding those keys down till you hear the second start-up chime, then release.
    For those of you with Macs that are not PowerBooks or iBooks, a bad internal battery can cause FireWire to not be recognized, so make sure it's good!
    Good Luck!
    Cheers!
    DALE

  • Brand new Mac, had to erase drive through disk utility as time machine back up failed. Now disk utility only has the option to install Mountain Lion which my Mac won't allow. Anyone any ideas as my Mac won't load anything up but disc utility!

    Brand new Mac, had to erase drive through disk utility as time machine back up failed on initial setup, USB cable popped out Now can only access disk utility as won't load to log in screen. The only has the option in disc utility is to re-install Mountain Lion which my Mac won't allow or loading another time machine back up but after an hour of it processing, that didn't resolve the issue either! The time machine back up is the latest back up of my Mac Book Pro which was using OS X Maverix. I'm guessing I'm going to have to take my Mac to the store but that would be a hassle so does anyone have any ideas?

    Follow this guide using another Mac.
    Insert your newly created Mavericks USB into you Mac, press the power button and then hold down 'option,' until it gives you an option to boot from the USB. You will then be able to erase the internal disk with Disk Utility and reinstall Mavericks straight after.
    After that you should be able to use Migration Assistant to restore your applications and user data.

  • Drive fails verification, but Disk Utility on OS X disc shows no errors

    Hi everyone,
    After running Disk Utility locally to verify my disk, I received the following message:
    Volume Header needs minor repair
    Error: The underlying task reported failure on exit
    1 HFS volume checked
    Volume needs repair
    I know I can't repair the disk while I'm using it, so I restarted with my Mac OS X install disc and ran its Disk Utility to verify and repair the disk. However after running another check on the disk from the OS X disc, it told me that the drive seemed okay and didn't need repairs.
    Huh... weird. So I went back into OS X and reran Disk Utility to check the disk again -- same error returned.
    So I'm left with a disk with errors, but errors that I can't fix because the OS X disc refuses to acknowledge that they exist!
    Is there another solution to this that I'm missing? I've also tried running fsck from single-user mode and it tells me the same thing as the OS X disc -- no errors. What's going on here? Can anyone shed some light on this?
    Thanks so much,
    Danny Stewart
    Mac mini   Mac OS X (10.4.6)   Intel Core Duo, 1.66 GHz

    Hi Mario,
    Apologies for the delay in my response. Here is the output from the log file after running a fresh scan:
    Jun 29 23:30:11: Disk Utility started.
    Verifying volume “Danny's Mac”
    Checking HFS Plus volume.
    Checking Extents Overflow file.
    Checking Catalog file.
    Checking multi-linked files.
    Checking Catalog hierarchy.
    Checking Extended Attributes file.
    Checking volume bitmap.
    Checking volume information.
    Volume Header needs minor repair
    d.",1)
    Danny's Mac
    Error: The underlying task reported failure on exit
    Disk Utility stopped verifying “Danny's Mac” because the following error was encountered:
    The underlying task reported failure on exit
    1 HFS volume checked
    Volume needs repair
    I hope this helps to diagnose the problem, although it doesn't look particularly helpful. Anyway, thanks for the assistance!
    Best,
    Danny
    Mac mini Mac OS X (10.4.6) Intel Core Duo, 1.66 GHz
    Mac mini Mac OS X (10.4.6) Intel Core Duo, 1.66 GHz

  • Time Machine Volume and Disk Utility

    I'm trying to figure out whether or not I can use Disk Utility's Repair Disk command on a Time Machine volume. Time machine is taking a very long time to finalize its backups. I don't know if there are directory issues that need to be addressed or if it's due to the very large size of the directory. I've been using Time Machine on this computer since last January and the Time Machine directory (the disk's catalog of files used by the OS) takes up over 7 GB of disk space! It's so large that DiskWarrior will no longer work on that volume. DiskWarrior, like all 32-bit OS X applications, has a limit of 4 GB. I can't be the only one in this situation. I don't want my Time Machine backup to get hopelessly corrupted and then have to start agin. I'm trying to be proactive about correcting any issues before they become serious.

    See my reply to Steve Darden in this Topic.
    You should not use Disk Utility in the normal manner. Time Machine uses hard links in a non-standard manner, which will cause normal repair utilities to complain, as Steve is finding.
    If you read Time Machine: Troubleshooting backup issues you will see that it only recommends Disk Utility to "Attempt to repair the backup sparsebundle", not the actual Disk Volume itself.

  • Cannot Partition or Create Volume in Disk Utility

    I have a 3 TB disk that I used for video files that I now want to use for backup. So I wanted to erase and partition the drive to wipe it clean. So after going into Disk Utility and "trying" to erase and partition the drive, it now only shows the drive and no volumes. The problem is everything is pretty much greyed out and I cannot create or partition volumes. I don't know what I did wrong or what to do to fix it. I tried verifying and repairing the disc but that didn't do anything. The only buttons available are Verify, Info and Burn. What do I do to use the drive again? Please help, thank you

    Apple has not provided an easy way to recover from this condition. If you can connect the drive to a computer running Windows or a version of OS X older than 10.7, erase it that way. Otherwise see this thread.

  • How do I fix a volume if  Disk utility says cannot be repaired?

    Greetings all,
    Am having some annoying issues with my PowerMac G5 hard drive, nothing very specific, just lots of small issues like crashes and hangs and the fan going into hyper-drive every now and then. Started up from my system disc/Disk Utility and ran repair permissions and repair disc.
    On repair disk it gets to the end then says:
    1 HFS volume repaired
    1 volume could not be repaired
    I cannot find out what this means so can anyone advise?
    I also run repair permissions over and over and it never stops finding something to repair.
    Any advice much appreciated.

    Started up from my system disc/Disk Utility and ran repair permissions and repair disc.
    Do you mean the System install DVD? - that's what you should do as you cannot repair an HD you're booted from.
    On repair disk it gets to the end then says:
    1 HFS volume repaired
    1 volume could not be repaired
    This is a little odd: is there another hard disk connected? Or possibly it was trying to repair the install disk as well?
    I also run repair permissions over and over and it never stops finding something to repair.
    Repairing permissions does thrown up a lot of things which can't be repaired: this is a bug arising from a system update and is harmless: you can ignore it.
    You could try downloading Applejack which you run in single-user mode and provides an easy way of using the built-in disk repair procedure: this is quicker than starting from the DVD and you won't get any confusion with the DVD. It's quite safe: it doesn't do the check itself, just invokes the repair that you would get by typing arcane Linux codes. But note that you must run it only in single user mode (starting up and holding command-s while booting), never while booted normally.

  • Erasing Volumes using Disk Utility

    I used Disk Utility to make copies of numerous cds and dvds. Doing this created a long list of volumes on my harddrive that I can not delete using erase or erase empty space (these fields are grayed out). I tried booting from the OSX disc however when I did that the volumes weren't even visibile. I also tried converting the disk images to a writeable format. All this did was make a copy of the existing volume. Does anyone know how to delete Volumes in another way, either using disk utiltiy or other software?
    Thanks,
    Dean
    Macbook   Mac OS X (10.4.7)   disk utility, delete or erase volumes

    If you are getting nothing for file system what has gone wrong is something in your computer/operating system, not on the iPod.
    Try running Scandisk first, then formatting or, at this is not recommended generally, if that doesn't work partition the iPod and then format it.
    But you might also want to consider a reload of XP. I reiterate, if it gave you nothing to select under file system this is most likely a problem with your operating system or USB chain.

  • Are you able to do a non destructively enlarge a volume using Disk Utility?

    I have searched a number of articles in the forums, many archived, and I haven't found a clear answer to whether you can enlarge a volume non destructively using Disk Utility.
    I am running a G4 PPC OSX 10.4.11 and am working with a Maxtor 300GB FireWire HDD. The volume I am trying to enlarge is the second volume on the Maxtor with free space following it.
    I have followed the *Disk Utility Help file* on how to *enlarge a volume*, but cannot complete the procedure because *Step 5 refers to an Apply button*, *but there is none apparent*. There is a Partition button available but then that warns of destroying all the volumes on the disk.
    Disk Utility Version 10.5.6.
    Thanks for the help.

    Your drive just be partitioned using GUID which is only available for Intel machines. An APM partitioned drive cannot be resized on the fly using Disk Utility on a PPC Mac. There are some third-party partitioning utilities like iPartition that may be able to do so on a PPC machine.

  • Disk Utility Failing to Repair HD

    I ran Disk Utility this morning from the Tiger installer CD for the sake of general maintenance. It failed, returning this:
    Verifying volume “Macintosh HD”
    Checking HFS Plus volume.
    Checking Extents Overflow file.
    Checking Catalog file.
    Invalid node structure
    The volume Macintosh HD needs to be repaired.
    Error: The underlying task reported failure on exit
    Disk Utility stopped verifying “Macintosh HD” because the following error was encountered:
    The underlying task reported failure on exit
    1 HFS volume checked
    Volume needs repair
    I've been searching the forums here, but most of the similar posts seem to dealing with newly-installed hardware, or a disk with a S.M.A.R.T. status "Failing" (according to Disk Utility's Log window). Neither of these is the case. Has anyone seen this before?
    Single 1.8 G5   Mac OS X (10.4.3)  

    Hi, Space Toast.
    To add to Al's advice, see the "Disk Utility cannot repair the disk" section of my "Resolving Disk, Permission, and Cache Corruption" FAQ.
    Good luck!
    Dr. Smoke
    Author: Troubleshooting Mac® OS X
    Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
    I may receive some form of compensation, financial or otherwise, from my recommendation or link.

  • Disk Utility: Burn error: 0x80020022 The device failed to respond...

    I've been working on archiving a ton of video to DVD. I'm using Dual-Layer discs to minimize the amount of physical storage space needed for the finished project. I burned several discs in iDVD in July and regularly received errors. Then the drive suddenly stopped loading any type of media. Anything I inserted would spin briefly and then eject. Repaired permissions and followed steps outlined here and here. Took the Mac back to the store where I bought it (sadly, not an Apple Store - nearest one is 12 hrs away) where naturally it performed flawlessly for the store rep.
    So I took it home and resumed burning, now saving as a disc image (ignoring iDVD's warning about the performance of DVDs burned this way) and using Disk Utility, since iDVD didn't seem to be reliable. Burned about 25 discs, error-free, in this fashion, then three days ago, got the error: "Unable to burn “Disc 19.img”. (The device failed to respond properly, unable to recover or retry.)"
    Retried the same image, and it worked. Then burned two more in the same fashion with no errors. Today I got the same error again. Logs are identical for each failed burn, except for the time span between certain lines.
    Price of DL media being what it is, I'd hate to keep ruining discs if there's something I can do to avoid it. I suppose it could be bad media, but it seems odd that I'd get two bum discs that close together after burning so many without issue. Checked the site and the forums, and there doesn't seem to be any answers. Does anyone have any ideas? (Other than "try a different brand of media." I've got a buttload of these discs and it's too late to return them now.) Even if it just helps determine where the issue lies. Warranty will be up soon, so if it's hardware related, I need to get it taken care of quick.
    Media: Philips DVD+R DL 8x
    *Drive info:*
    HL-DT-ST DVDRW GS21N:
    Firmware Revision: SA15
    Interconnect: ATAPI
    Burn Support: Yes (Apple Shipping Drive)
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW
    Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO
    Media: Insert media and refresh to show available burn speeds
    DiscUtility.log:
    2009-10-03 08:54:01 -0600: Burning Image “Disc 22.img”
    2009-10-03 08:55:15 -0600: Image name: “Disc 22.img”
    2009-10-03 08:55:15 -0600: Burn disc in: “HL-DT-ST DVDRW GS21N”
    2009-10-03 08:55:15 -0600: Erase disc before burning: No
    2009-10-03 08:55:15 -0600: Leave disc appendable: No
    2009-10-03 08:55:15 -0600: Verify burned data after burning: Yes
    2009-10-03 08:55:15 -0600: Eject disc after burning
    2009-10-03 08:55:15 -0600:
    2009-10-03 08:55:15 -0600: Preparing data for burn
    2009-10-03 08:56:30 -0600: Opening session
    2009-10-03 08:56:35 -0600: Opening track
    2009-10-03 08:56:35 -0600: Writing track
    2009-10-03 09:01:37 -0600: Finishing burn
    2009-10-03 09:02:37 -0600: Closing session
    2009-10-03 09:02:38 -0600: Finishing burn
    2009-10-03 09:38:37 -0600: Burn failed
    2009-10-03 09:38:37 -0600: The device failed to respond properly, unable to recover or retry.
    2009-10-03 09:38:37 -0600: Additional information can be found in the ~/Library/Logs/DiscRecording.log log file.
    2009-10-03 09:38:37 -0600: Unable to burn “Disc 22.img”. (The device failed to respond properly, unable to recover or retry.)
    DiscRecording.log:
    Disk Utility: Burn started, Sat Oct 3 08:55:15 2009
    Disk Utility: Burning to DVD+R DL (CMC MAG D03) media with DAO strategy in HL-DT-ST DVDRW GS21N SA15 via ATAPI.
    Disk Utility: Requested burn speed was 47x, actual burn speed is 4x.
    Disk Utility: Burn failed, Sat Oct 3 09:37:15 2009
    Disk Utility: Burn sense: 4/44/90 Hardware Error,
    Disk Utility: Burn error: 0x80020022 The device failed to respond properly, unable to recover or retry.
    Message was edited by: Weasel42

    I have encountered the same problem. I have a Mac Book Pro from 2007, and it has gone through 3 DVD writers so far, all of which have ruined DVD+R DL disks. I have occasionally been able to burn one, but usually during verify, I get this error message:
    Communication to the disk drive failed: 0x8002022
    And disk utility fails with a "Invalid B-tree node size" error
    Oddly, when I try to burn a disk near capacity (6.5Gb or more) it is more likely to fail than if I burn a smaller disk.
    I've been using Memorex DVD+R DL disks, but I have used other brands in the past but they have failed, too. Out of about 50 disks so far, I have had success with about 5.

  • Verbatim disk drive historically used only for time machine backups. Recently i added some other media files to use some of available space without partitioning, the disc now refuses to mount in finder despite appearing in disk utility. Repair fails. HELP

    Sorry to elaborate a bit more.
    I have used time machine since owning my mac book pro with no issues. i keep the timemachine backups on an external hard drive made by Verbatim. This has not external power source.
    Recently i decided to use up some of the available space on the external verbatim disk drive to store some movie files which were sitting on my macbook pro.
    Therefore i created a new folder outside of the time machine backup folder and stored the movie files in there.
    From then on Time machine failed... and a few days later i noticed it was not mounting in 'finder'
    Therefore i used disk utility to see if it was recognising it. Which i was. However when i try to repair it the repair process fails.
    In disk utility i am presented with 1 TB Samsung HN M10 which has a child called Verbatim HD.
    The 1TB Samsung hardware appears fine, but the verbatim disk i am unable to fully verify and fix.
    Does this mean i have lost all my back ups?
    Have I lost all the media that i put on there?
    Is there any way to fix this?
    Any help would be appreciated.
    didier07...

    To summarize: You used an external Verbatim HD for your TM backups. Then, you stored some movie files on the "spare" space on the Verbatim drive. Now, Disk Utility isn't being recognized, and repair is disabled. Your home Samsung drive is working fine, but the Verbatim cannot be verified.
    The problem, I believe, is that the external Verbatim drive wasn't partitioned. There should be two partitions: one for TM backups, the other for video. That way, you can perform backups, and still retain some space for video or somesuch.
    Frankly, I don't know how to fix this except through the following. (1) Erase the Verbatim drive, (2) Create a new blank space and format it, (3) Make two partitions - one for backup, the other for video. (4) Run TM through one partition, but switch to the other for your videos.  The better solution might be to have one dedicated drive (perhaps the Verbatim) for backups, and another dedicated drive for video backups; that way, you'll have plenty of space for expansion.
    I hope someone will correct me if I'm incorrect, but I believe you've essentially lost your backups and media. I don't know how you can retrieve that clump of the now-undifferentiated data on the Verbatim drive. To retrieve any lost data, you're going to require another external drive that's larger in capacity, as well as data recovery software; don't expect encouraging results. If you're desperate, there are firms like Drive Savers that can offer a more comprehensive solution - at a cost.
    Post if you have questions, or additional concerns!

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