I ran a disk utility scan and chose to repair my HD.

The follow message came up:
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
Not sure what to make of this.

You need something stronger, such as DiskWarrior, TechTools Pro, or Data Rescue.

Similar Messages

I have an iMac mid 2010. After Disk utilities said the drive was corrupt, I ran the hardware test (extended) 3 times. No problems. I than ran Disk utility again and got 2 messages in red-keys out of order, and --Volume corrupt, can't be repaired. I tried

I have an iMac mid 2010. After Disk utilities said the drive was corrupt, I ran the hardware test (extended) 3 times. No problems. I than ran Disk utility again and got 2 messages in red…keys out of order, and ……Volume corrupt, can't be repaired.
I tried to do a system install, but message said…disk can't be changed. Will a complete erase and install fix this ?
Everything is backed-up.

There's hardware and software.
Your drive could physically be in good condition but something has caused the file structure to be messed up (it just happens sometimes). The directory that keep track of files is corrupt. Disk Utility can help determine if that is the issue. In some cases it can repair the problem but it cannot do it to a drive that is being used to boot the system while you are doing that. You have to boot from another drive. Some things DU cannot repair and you need to try a stronger utility such as Diskwarrior.
A failing hard drive (one with mechanical issues) can be a cause of file structure issues but this is by no means always the case. Apart from looking at the SMART diagnosis feature of Disk Utility (and smart isn't totally reliable) there often isn't a way to tell if a drive is failing until it suddenly happens, which is why you need to maintain backups.
In your situation it does sound serious and not just minor directory corruption. You can try erasing (formatting) the drive, You may need to do this if it is really corrupt, in which case there could be underlying physical issues. I use old technology but if you have the patience you can try erasing the drive with the security option of writing zeros once (don't do more unless you are going on a 3 week vacation). This makes the drive not simply assume everything is okay by forcing it try every part of the drive by writing data. If something is gong wrong you may find it marks a lot of bad sectors, or flat out refuses to format. Then you know you need a new drive.

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.

Disk utility/erase and lost HD free space

HELP!
In an attempt to clear up space from deleted files I ran the disk utility>erase>erase free space>35-Pass erase deleted files programme. Then did verify disk permissions and repair disk permissions.
Iv now dropped from 7.8GB of free space to 1.8 of free space on the HD. So that things aren't working right. Plus, I can't download music that I bought on iTunes because there isn't enough space on the HD.
How do I get all that space back? What did I do wrong?
All I was doing was trying to free up space from deleted files that Iv been getting rid of. I know that when you delete from one portion of the HD it doesn't always delete it totally off the system only the portion where you're looking at it.
HELP

Do you by any chance have FileVault enabled?

I just restarted my mac then suddenly when it boots,disk utility came and says different option like repair disk, get help, reinstall OSX and I tried to click disk repair but it says that I am um able to repair the disk

i just restarted my mac then suddenly when it boots,disk utility came and says different option like repair disk, get help, reinstall OSX and I tried to click disk repair but it says that I am um able to repair the disk

It sounds like your hard drive either has a software problem that Disk Utility cannot fix or that the HD has failed (mechanically).
Your Mac may have booted either to your recovery partition or to internet recovery in an attempt to repair the drive- I can't tell from your post.
I'll assume that it was the recovery partition.
Try to boot into internet recovery (hold down option command R at restart), and see if you can repair your HD with Disk Utility. You should also repair permissions while you're there.
If that doesn't work, try to boot into single user mode (restart, hold down ⌘S until you see a black screen with white text) and repair your hard drive. Here's a reference with directions: Repair Your Hard Disk in Single User Mode | Everything Macintosh
If that doesn't work you have a few options:
If your mac originally came with installation disks, you can try to boot from the installation disk and then see if you can repair the HD.
There is a small chance that Techtool Pro 7 will be able to repair your HD if Disk Utility can't.
If none of that works then your HD has probably failed and will need to be replaced, which is not too difficult to do yourself if you can use a screwdriver.

My external drive won't mount. Disk Utility says it can't repair disk and to backup the disk and reformat, but how can I do that if it won't mount?

My external drive won't mount. Disk Utility says it can't repair disk and to backup the disk and reformat, but how can I do that if it won't mount?

See mount section in 1st linked article.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk

Disk Utility Error- Filesystem verify or repair failed.

I ran Disk Utility and before it finished I received Filesystem verify or repair failed error message.
It says to run repair but I can't
HELP!!! What do I do? What is wrong?
Thanks

Hi , and a warm welcome to the forums!
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

I downloaded the mountain lion from the app store and it downloaded. when i installed the mountain lion it said that the hd disk is broken and cannot be repaired, and the other disk doesnt have enough space!

I downloaded the mountain lion from the app store and it downloaded. When i installed the mountain lion it said that the hd disk is broken and cannot be repaired, and the other disk doesnt have enough space! HELP and i cannot return to my desktop with the old sofware so i cant use my computer normaly

This error means that your hard drive is badly corrupt and cannot be repaired by Disk Utility. Since you say you don't have backups, this is very bad news. You may already have lost data irrevocably.
First order of business needs to be backing up whatever you can, but this may be difficult to do if the machine won't start up any more. See step 1 of the following post:
https://discussions.apple.com/message/21614450#21614450
Once you have backed up your data, you can address the other issues.

Disk Utility Question? Volume needs repair

Hi ALL, I need some help. My system seems to be running slow, so I did a repair permissions - that was OK then I did a Verify Disk and got the message."First Aid Falled" -"Volume Header needs minor repair
d.",1)
S&M Hard Drive
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair " I have my Tiger Update disk but it will not bootup from it - not sure why? I do have my old install disk form my old iMac Version 10.1 - can I bootup from this disk and try fixing the issue? I would rather download something that's not expensive or free to help fix the issue. Any and all HELP would be GREAT!!!! THANKS Scott

Because the new software is insane. If there is a leading space on a line the line gets deleted. There's more insanity as well, but I would guess that's the problem with your post.
Anyway, your problem is that there is minor damage to your startup disk, which can probably be repaired. However, you can't repair the disk while booted from the disk. Boot from your install disk, then go to the menu and find Disk Utility there and use it to run the repair function, then reboot. If Disk Utility still can't repair the damage you need to buy a copy of Disk Warrior and use it.
Francine
Francine
Schwieder

HT2518 Migration assistant can't find my external drive - I ran the disk utility on it and it checked out. What can I do - I am trying to transfer PC files to my new MacBook Pro. Thanks

Hi,
Wonder if someone has a suggestion for getting Migration assistant to recognize my external drive so that I can transfer some PC files from it to my MacBook Pro? I have been opening files in the drive with the Mac without a problem and I ran the diagnostics utility and the drive verified. Still, migration assistant spins and spins without finding anything. There's a lot of files and doing it manually with take days.
Thanks!

Personally I have always used the manual method for moving my files over to a new iMac and never use Migration Assistant.
Go to the Apple drop down menu and select Force Quit.. and if Migration Assistant has failed, force quit it and try re-launching it again from your Applications Utility folder.

Disk Utility - Scan Image for Restore - Freeze

I backed up my wife's iBook by starting her computer in target disk to my iBook which has a huge external attached. After about an hour, the image process was complete. Apple disk utility help says next to scan image for restore (not too sure why because I'm not restoring anything unless her drive dies). I begin the scan image for restore and get the progress bar that never shows and progress. Just keeps spinning/scanning for hours and I have no option to shut if off. Can't move external to trash because it in use, etc.
Does this mean the original disk image may be bad? Do over?
I'm using Disk Image as a solution for a total disk backup if a drive fails. No messing around with reconfiguring apps, etc. (i.e. plug and play) Is this the best way to do this?
I come from the Mac Plus days. Hopefully I can contribute to the new OS discussions at some point. Thank you much!

What format is the external drive?
Is it Firewire or USB?
Does the external drive have one of those front button touch things, like a My Book?
I'm using Disk Image as a solution for a total disk backup if a drive fails. No messing around with reconfiguring apps, etc. (i.e. plug and play) Is this the best way to do this?
I prefer a Clone myself.
Get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
Have a look at Synchronize! Pro X 6.0.5
http://www.macupdate.com/info.php/id/6897/synchronize!-pro-x
Or the most expensive one & my favorite, ...
http://www.tri-edre.com/english/tribackup.html
Does this mean the original disk image may be bad? Do over?
It can take quite awhile, and the progress bar isn't accurate at all, but it sounds like something is wrong.

Disk Utility crashes and dmg files won't mount

My girlfriend's Powerbook has been acting up for a while now, and we still can't seem to get it working properly.
One day, her Adobe programs just stopped working. Tried several things, but nothing worked and she ended up reinstalling OSX. That fixed the problem, but then she noticed she could no longer open DMG files. Accordingly, she tried to run Disk Utility but then found that it would always crash when trying to open.
She ran Disk Utility from the install disc, but nothing turned up. She also tried looking up several methods of fixing the DMG problem (deleting various files), but nothing's worked.
If I remember correctly, she also tried using the 10.3.9 combo updater some time ago, but that didn't help. We're actually not totally sure about that, so we're trying to reinstall the 10.3.9 combo updater, except for the fact that Apple has only made the file available as a DMG (which she obviously can't open).
So can anyone please help us get Disk Utility to stop crashing, and get those DMG files to open/mount? I have the crash logs but they're huge, so I'm not so sure if I should post them. Thanks everyone!
PS. I can open DMG files for her using MagicISO (I'm on a PC), but it's a bit of a pain transferring those larger files to her.
Powerbook Mac OS X (10.3.9)

What files did you try deleting? If you don't know what a file does or why you're messing around with it, you shouldn't; that's just asking for trouble.
Let's assume for the moment that you have a corrupted preferences file. To find out, go to Users/Library/Preferences and locate the com.apple.DiskUtility.plist file and drag it to the Desktop. Now relaunch Disk Utility and see if the problem continues. If not, then use Disk Utility to Repair Permissions, and then you can Trash the file on your Desktop.
You should also use your OS X install disc to boot the system and use Disk Utility to Repair Disk, to see if there are any problems. If it reports any errors that it can fix, keep running it until no more are reported.
If there's an error that it cannot fix, stop using your system immediately and make a backup of everything; then get a disk utility such as DiskWarrior to see if it can fix your drive. If your drive cannot be repaired, you will need to replace the internal drive and restore from your backup (if you have one).
Hope this helps,
Mulder
If my answer helped solve your problem, please consider awarding some points. Why Reward Points?
iMac G4 700Mhz Mac OS X (10.3.9)

Disk Utility: Defrag and Scandisk

Hey all!
I was looking into running a disk defrag on my computer but apparently defrag runs in the background all the time.
I dropped the macbook while it was on today and I am afraid of a head crash. Is there any utility to run such as scan disk to check for any disk errors?

Open Disk Utility in your Utilities folder. Select the hard drive entry (mfgr.'s ID and drive size) from the left side list. Click on the First Aid tab. In the DU status are look for the SMART info. If it does not say "Verified" then the drive has failed. Otherwise, click on Verify Disk button. If no errors are reported the drive is OK. If errors are reported then you will need to boot from your OS X Installer Disc and run Disk Utility from the installer's Utilities menu. Select your startup volume then click on First Aid tab. Click on the Repair Disk button. If errors are reported that are fixed, then re-run Repair Disk until no errors are reported.

Problems with disk utility, diskimagemounter, and CD drive...?

I have three problems that seem, at least tangentially, related:
My CD drive won't open from the us - I drag a disk to the trash, or click the eject icon, and nothing happens physically - the disk disappears from the desktop and the filesystem but the drive remains disturbingly nonchalant.
Disk Utility won't open - it opens, then sits there spinning supposedly looking up the disks; but force quit simple closes the window and makes the related two tasks disappear from the AM - the icon remains in the dock.
DiskImageMounter does not work - it will scan and verify a disk image, but it freezes on the 'Attaching' stage.
I've refreshed my computer multiple times, but these problems have remaind - even through a complete 7-way write... so I am puzzled as to what I can do about it. It is quite annoying to open up Toast just to mount a DMG.

Hi thmayr!
Although the original instructions were for a 700 MB disc, perhaps the article linked to below, could be helpful.
From "Macworld" Feb 2005 issue p.90 Link To Article. Scroll to the second tip on the page: "Unix Tip of the Month: Utilize Extra Space on CD-Rs".
Content:
Create a new folder in the Finder.
Drag everything you want to burn, up to 700 MB, into the folder.
Open Terminal and type cd ~/Desktop
Press the Enter key. This changes Terminal's active directory to your user's Desktop folder.
Type hdiutil makehybrid -o myburn.iso (There's a space after the o in iso, and myburn can be any name you choose) DON'T press Enter
Switch to the "Finder"
Drag & drop the folder you created onto the Terminal window. Terminal should fill in the full path to the folder.
Press Enter. Enter key will then execute the command.
What you have done is used the hdiutil Unix command to create a hybrid disk image named myburn.iso (you can choose whatever name you like, in place of myburn, but use iso for the extension.
You should see the message "Creating hybrid image" in your Terminal window, as well as an indication of the task's progress.
When finished, you should see a disk image called myburn.iso on your Desktop.
You can use Disk Utility to burn this image, or you can type
hdiutil burn ~/Desktop/myburn.iso in Terminal
Insert a blank CD-R when prompted, and then just wait until it's done.
ali b

Can Disk Utility warnings and odd behavior be ignored safely?

I have a late 2012 Mac mini with a fusion drive. which will not repair using Disk Utility. In addition, I have been unable to partition it. When I try to verify the disk I get: Unable to bootstrap transaction group 461088: invalid field value
No valid commit checkpoint found
The volume CEF34A3F-08C3-45A5-9A87-C383B300541E was found corrupt and needs to be repaired.
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.
If I run disk repair it goes into a loop saying that the disk needs to be repaired.
    I took it to the Apple store where they were also unable to partition it, but they did say that there is nothing wrong with the disk. Can the above warning and behavior be safely ignored? Oh yes, I forgot to mention that the mini often hangs when I restart from the Apple menu.

The problem is solved,
   I took the Mac mini to the
Apple store again and this time they rebuilt the fusion drive and installed a fresh copy of OSX. After copying my stuff over from a Time Machine backup and running Disk Utility again a get a nice reassuring green text saying that; 'the volume appears to be o.k.'
   Thanks to all.

I ran a disk utility scan and chose to repair my HD.

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