Disk Utility really doesn't repair disk

When repairing permissions disk utility finds and repairs permissions that are not correct.However,when the repair permissions utility is ran again it finds the same errors and says it fixes them again and again and again.What gives? Thanks.

Have you visited [Disk Utility's Repair Disk Permissions messages that you can safely ignore|http://support.apple.com/kb/TS1448]?
And, why are you repairing permissions? Do you have file access problems? Are applications reporting that they can't find or open some files?

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OSX Lion Disk Utility won't verify/repair RAID volumes

SInce I upgraded to Lion (now at 10.7.4) I can't use the Disk utility to verify or repair the disk catalog (disk first Aid) on apple soft RAID volumes. These volumes were created in 10.6 use the Apple RAID feature of disk utility.
I have one striped and one concatenated volume - neither will work. Press the button and the progress bar flashes for a fraction of a second, then nothing. no error, no message in the window - just no repsonse. Works fine on non raid volumes in the same disk enclosure -Firmtek Seritek/5PM, with seritek 2ME4-E sata card.
Not sure I really want to recreate and recopy the drives....
Any ideas? Seaches haven't turned up this specific issue.

A quick search in these forums for permissions or *permissions problem* reveals many posts the past four months.
In a nutshell, repairing permissions w/Leopard takes anywhere from 10-40 minutes, depending on what's installed and what's contained in /Library/Receipts/bom/. The repair permissions operation has changed in Leopard. The stalled progress bar is an unresolved bug (they haven't figured out how to make it work whilst it's checking or rebuilding the a.receiptdb, in /Library/Receipts/db/. To see what's really going on, open that folder in a Finder window, select list view, launch Disk Utility, select your boot volume, and click on repair permissions. Watch the Finder window flash files that are being read and checked against the current a.receiptdb file. That's what's taking all the time and freezing the progress bar. Once that's finished, the progress bar starts moving and the permissions are being checked and repaired. Also note, that you won't get any *they were repaired* message back for any that are noted to be incorrect.

Disk Utility unable to Verify/Repair Permissions since this week's update

Hey there folks- I am experiencing some software problems with certain apps not launching (I understand it is an issue with QT now but am not clear on how to revert... Help?) and naturally panicked a bit.
I went into Disk Utility and tried to Repair Permissions.
Starts checking and then claims to lose connection and that I need to quit it and relaunch. This, of course, tells me that I am about to corrupt the disk and will "pay" for it (not seriously but feels like it!).
Anyone know what I can do to fix this as I really cannot, this minute, afford to reformat as I am working flat out with the machine.
So- review- unable to repair permissions and sometimes the machine runs slower than usual on the net as well as no longer launching some applications. Missing a few too but I can live with that!
Any help VERY gratefully received.

Oh dear lady upstairs! Sorry to not have responded sooner- I never got the message that you had answered me... Bit odd that!
OK- thanks for that. I do so like understanding what I am doing and, more importantly- WHY!
Will do and let you know if that sorts matters...
As for QT- I hear tell that it can interfere with the running of applications and I certainly had a lot more than just Disk Utility fail on me. Stuff APPEARS to launch and then just stops after a few bounces of the icon on the dock.
Of course that TOO began only after the update.
I have to say- if it weren't for your calming influence I'd have freaked by now. I mean- how can we trust the updates if they cause such agro?!
LOL!

My Disk Utility window doesn't look anything like the one in the Help file

My Disk Utility window doesn't look anything like the one in the Help file. It is missing the top row of icons (Burn etc.) What happened?

Nevermind - I found the "Show Toolbar" Command.

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

Disk utility's will not repair permission launch from option V 1.0(53)

Disk utility's will not repair permission launch from option V 1.0(53)

What is Option V in reference to? What happens when you attempt to repair permissions? Please describe your issue in more detail. Thanks.

Why doesn't repair disk permissions repair all disk permissions?

Disk Utility says there are a bunch of disk permissions that need repairing. I hit repair and disk utility says that it repaired those disk permissions. But when I verify, it says they still need to be repaired.

See "more like this" on the side, or do a search for those terms + "site:discussions.apple.com." This question has been raised and answered innumerable times. Bottom line: don't worry about it.

Disk utility repair doesn't repair os disk

Disk utility (13) keeps saying
Invalid B-tree node size
The volume could not be verified completely.
and, once it has shown "updating boot support partitions for the volume as required", says "This disk needs to be repaired. Click Repair Disk."
But I'm getting the impression that clicking repair disk does not help - even after about ten times, the messages stay the same.
I can't re-partition the disk as all those options are grey, even though I'm booted from an external USB drive.
The machine is a MacPro, early 2009, OS X 10.9.3 (13D65), disk is encrypted journaled HFS+, used to have a Bootcamp partition a few years ago but is now a single partition.
I can probably no longer boot from this drive, each time takes longer and last time took almost thirty minutes, so I'm really looking of a good fix.
Any suggestions?
Regards,
Bob

Eric,
I've first tried Disk Utility when booted from the Recovery of the disk itself. Didn't help and also didn't offer a re-format option.
I've then made a USB bootable, booted from that and tried Disk Utility - didn't help.
I've then booted from the Recovery of the USB and tried Disk Utility - didn't help.
I've since used diskutil reformat on the command line and found to my surprise that the disk is now empty but the "Invalid B-tree node size" remains.
It seems reformatting does not reset the indexes of the disk
And every now and then I still see a remark about the "Windows boot.ini files" - which I also wouldn't expect after reformatting.

2nd Hand iMac wont boot. Tried "repairing drive" in recoveryHD disk utility but doesn't fully pass through. HELP! :(

I have just purchased a second hand mac from Gumtree as Im eager to get into the beauty that is OS X.
But when I try and boot it will just stay at the apple logo with the spinning bar.
I booted into the recoveryHD with COMMAND+R and launched disk utility, I then proceeded to click "repair disk" on Macintosh HD.
It hangs for a while but then says "The volume Macintosh HD could not be verified completely" and then says ERROR:Disk utility cant repair this disk, backup as many of your files as possible, reformat the disk and restore your backed-up files.
I then tried to "re-install OS X Mavericks" but I need an apple ID with Mavericks purchased (please note I am on a windows machine and cant do this).
I've tried calling 133 622 but apparently their phones aren't on from 9am-9pm as stated (It's currently 7:30pm).
This is turning me off Macs as this sort of stuff should not just "happen" and due to apples "no windows support" views I cant actually do anything.

Mavericks is a free OS yes? If theres a way I can get it as a purchase on my Apple ID I can download and restore. I was just wondering whether there was a way to restore from the recoveryHD
And as for the no windows support, their OS X utilities image for USB is only available as a .dmg so I cant use that tool to recover from the recovery partition

Disk Utility doesn't repair problem

A friend of mine brought me in his sister's iBook and asked if I could fix it. The computer would not start up at all, got to the white screen and just spun forever. So I started up using Panther Install Disk 1, dropped into Disk Utility. Verified Permissions, then Repaired Permissions. After that Verified Disk, and it found a bunch of volume problems, I told it to repair them and the first time it fixed 2 out of 3 and said that it had fixed 1 volume and failed to fix the other. I repaired again and it said all problems fixed, just to be safe I tried a third time, again all problems fixed. Ran the verify to check it and it stated that the volume needs to be repaired. Have gone through the repair and then verify cycle twice now. Other than taking it to a Genius Bar, what else can I do?
Thanks,
Ted

Hello Jan:
I doubt if preferences have anything to do with the problem.
Try running repair disk from the software install DVD (fixes directory problems).
I would also run the hardware checker that came with the system.
Barry

Disk Utility - Partition map needs repair because a data partition needs loader space.

I just finished setting up both my OSX and Windows installs from scratch after fitting an SSD, which in-turn was right before my logic board died and Apple replaced it, now it looks like I have some sort of hard drive issue brewing.
This was my plan for the SSD, and how it currently displays in Disk Utility although that wasn't the case earlier:
And in Terminal:
My intention was to have two boot partitions for each OS, 'Macintosh HD' and 'Win 7 Pro' and a third shared data partition 'Projects' on the SSD, which I made in Drive Genius after installing Boot Camp. I don't want Macintosh HD accessible from Windows because I'll be using Paragon HFS+ or MacDrive to give write access and don't want OSs stomping on other OSs turf, hence needing three partitions. Everything looked fine until I just checked Disk Management under windows and realised it couldn't see the Projects volume. Even though it's fine in OS X, it was just marked black/unallocated space.
So I booted back into OSX, all my files look fine so I ran Disk Utility and the Partition tab looked really odd - unfortunately I didn't get a screenshot. All volumes reported their size correctly but visually, Macintosh HD took up most of the drive. I could see 'Windows 7 Pro' under this, but the Partition Layout section had a scrollbar, which if I scrolled down showed 'Projects' squished into a tiny gap at the bottom. I ran a Verify, which reported no problems, and at some time since the Partition Layout has reverted to how it should look (as in the screenshot above), with 'Projects' book-ended by "Macintosh HD' and 'Windows 7 Pro'.
Now when I run a Verify on Macintosh HD or Projects volumes, it says there's no problem, but if I run one on the drive, I get this message:
Volume Macintosh HD on disk0s2 has 0 bytes of trailing loader space and it needs 134217728 bytes
Problems were found with the partition map which might prevent booting
Error: Partition map needs repair because a data partition needs loader space.
I've only managed to find one other mention of this error here, but the fix is not relevant to me because I don't have Sophos installed. I've tried Single User/Safe Mode but it just boots into normal mode, so I can't do a fsck -fy.
** /dev/rdisk0s2 (NO WRITE)
Can't open /dev/rdisk0s2: Permission denied
That value in bytes is exactly 128mb, so I suspect the problem lies with one of the invisible partitions that show up in iPartition and Disk Management under Windows, but not in Disk Utility. I have backups and I suspect the root of the problem is partitioning in iPartition after installing Boot Camp, but I've never had issues with this approach in the past so I'm wary of just giving up and reinstalling Windows again will be massive hassle because I no longer have a SuperDrive and last time it refused to install from USB.
Anyone have any idea what's going on? It seems like the sort of issue Disk Utility should just handle, at least in Recovery mode, but it's not playing ball. It also doesn't seem like a massive problem since my files all look fine and performance is OK, so I'm reluctant to do anything major.
I'll update with a shot of the drive in Disk Management from Windows in a few minutes, in case that sheds light on anything. Thanks!

Similar issue here. I manually partitioned my hard disk for triple boot (using Gparted on Linux), then everything was just fine until I ran bootcamp, to do something as simple as create a boot USB.
I get the same error as a result and have to work my way into booting, by resorting first to a Linux live USB, then restarting from the live USB, to finally reach my rEFInd boot manager, or whichever boot manager should be initialized at startup.
I suppose that the cause in my case is that some operation "scratched" the protective MBR. See this:
http://www.mactech.com/articles/mactech/Vol.23/23.03/APMtoGPT/index.html
I am hoping to fix it using an external Yosemite installation media: see this guide -
http://www.macworld.com/article/2367748/how-to-make-a-bootable-os-x-10-10-yosemi te-install-drive.html
And as a last resort to reinstall.
I'll admit I am negatively surprised. I need this computer for professional reasons, and for the sake of "preserving the integrity of OSX", measures defined by Apple instead tend to make partitions far easier to damage. And this problem seems to affect a number of users.
As for what I have to go through to fix it: a 5GB download, during which I have to register my credit card to the Apple Store. "Pay first, get your free software next."
IF Disk Utility can fix it, from the external media, then fair enough. The hassle is unpleasant but it files as "a choice".
Otherwise you can file it safely under software design calamity.

What does disk utility really do ?

I downloaded a lion 10.8 dmg from internet and wanted to make a installation portable disk.
And when I loaded the dmg, and used the 'disk utility' to restore installation files to one of my disk partitions, it just failed. And what is real annoying is that I got my disk partitions after the partition lost. And I can't get my important files back.
Maybe the 'disk utility' want to change the partition to be bootable and made the partition tables damaged.
Hope someone can help me to repair the disk and make the disk utility more secure !

varjak paw wrote:
There is no DMG of Lion, at least not anything legal. From where did you get this file?
Well there is a DMG of both Lion and Mt Lion. But it is included in the Lion/Mt Lion OS X Install.app package files and can be copied out.
But that is Not the Operating System. It is the Install files for the operating system. Restoring that DMG would, supposedly, give you bootable media for installing the OS on a drive.
To the OP I have found that the Restore feature/function in Disk Utility doesn't always work as expected. Best thing to do is use this program for creating a Dual Layer DVD or USB thumb of the Mt Lion install files. It works every time.
Make the USB thumb as most of the, Not So, Superdrives can't really write to Dual Layer DVDs. You will be very lucky if you have a Superdrive that will actually write to Dual Layer DVDs.

Grey bar at startup - Mac HD is greyed out in Disk Utility - Can't be repaired? Need to salvage my data!

Mac Book Pro -
My MacBook Pro (2008 Model) has been unable to start up - upon the start up screen when the grey Apple logo appears, I get a loading bar below it.
After about 15-20 minutes when the bar is almost complete the machine shuts off. There seems to be no way around it.
So I booted up my laptop in recovery mode, and opened Disk Utility to check my if there was something wrong with my drives -
my Macintosh HD (under the TOSHIBA drive) is greyed out. When I hit verify/repair it returns error messages and it remains greyed out.
I tried multiple times and a few times it stopped being greyed out on the sidebar, but even then it wouldn't let me verify or repair.
Not backing up my data recently is my obvious fault here, but I just wanted to know if there is ANY way to salvage my data.
Things I've tried:
1) Recovery Mode
     -Veryify/Disk Repair doesn't work
     -Time Machine can't seem to access my HD either (greyed out)
2) TargetDisk mode
     -I connected my MacBook Pro via firewire to my Mac Pro in TargetDisk mode and no Hardrive shows up on my finder.
Any advice appreciated, going to try and take it to a tech shop on Monday.
Thank you!

I would take out the HDD and install it in an enclosure and then connect that to the Mac Pro and see if there is any success.
If not, then look for data recovery software on the Internet. Most will have a 'trial' version that will indicate if the software will be successful or not, so you do not have to commit funds without knowing if it will work or not.
The last option is a professional recovery service. There will be no guarantees of success and the costs will be very high.
Ciao.

PNY Micro SD won't show up in Disk Utility so I can repair it!

So i have a PNY micro SD, which I use the same brand adapter. It was working fine but when I turned my mac off yesterday and restarted it, it was really slow...l couldn't move the cursor or use the keyboard so I thought it was the SD card so I took it out but it wasn't (I don't think). I reinstalled OS X and everything went normal again. When I restarted it, I tried to access files on the SD but when I clicked on it in Finder it wouldn't let me open, so I took it out and tried to put it back in. From then on, I can't see it in Finder or disk utility. When the SD card's been in for a long time, I get a message and it's a message telling me how the disk can't be mounted and I hit initialize, but when it takes me to the disk utility, the SD card is named 524kb Apple reader (something along those lines). I tried repairing that 524kb apple reader but nothing. Any one have any clue how to get this SD card working? Also it WAS formatted but now it's not...which is really weird.
Specs of Macbook Air:
MacBook Air (13-inch, Early 2014)
1.4 GHz Intel Core i5
4 GB 1600 MHz DDR3
Intel HD Graphics 5000 1536 MB
128 Gb HDD
OS X Yosemite 10.10.2.

I found this same question in the archives. I followed the instructions to click on New Image, but there is no Shared item on the left as suggested, so don't know what to do next. Cannot understand why Time Capsule fails to appear when it is plugged into the iMac!

Help help!! Disk Utility reported can't repair my HD

Hello all I used Disk Utility (version 10.5.5) that comes with Mac OS X 10.4.6 to check my hard drive. The diagnostic returned a message that my drive needed to be repair. So I booted up with installation disc and did the repair.
One of the log says there is an error in red font "Invalid leaf record count"
and the repair results were as the following:
1HFS Volume repaired
1 Volume Could not be repaired.
What does "Invalid leaf record count" mean?? And why 1 volume in my drive can't be repaired? How do I repair it?
I only have 1 volume on my HD, I didn't partition my drive. So, what is causing the problem? Should I be ignored? What's the benefit of partitioning my drive?

Sometimes the file directory is corrupted or damage beyond Mac OS X's Disk Utility can repair, but don't panic just yet. Get a copy of Disk Warrior, boot from it and run it, it will build a brand new file directory and replace the old one, that should solve your problems, a lot of us here "swears" by Disk Warrior, in fact I had your similar problem, ran DW and problem solved.
As for disk partition, it is not really necessary in modern OS like the Mac OS X, one of the reason people partition disks (a long time ago) because in the older days of the older Mac OS, it is unable to read a large hard drive beyond a certain size, i.e. if you place a 250Gb (of course then there is no 250 yet) inside your Mac, your Mac probably can only read it is 120Gb large, so that's why you need to partition the drive into 2 or 3 to read.
People also partition drives to run and boot multiple OS, this is especially true maybe for tech guys etc, who may have OS X, various versions, and OS 9 running in different partitions.
Cheers

Disk Utility really doesn't repair disk

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