Can Disk Utility repair FAT32?

hi, folks:
I'm jammed up. I need to repair the drive in my PS3. It's FAT32-formatted. Im a Mac user, obviously. Can Disk Utility repair it, or does it only do Mac discs?
Please say "yes" (and mean it!). (Barring, of course, hardware problems, I mean. I understand that if the platter is scratched or the controller's no good, I've had the radish.)
BInky

Grf. This wasn't the answer I wanted, but it's what I needed. Thanks, Kurt. I'm now off on a quest to find a Windows laptop. I appreciate the quick response.
BInky

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HT4790 My Mac OS Lion 10.7 FileVaulted HD does not boot, prohibitory sign, stop sign appears some minutes after boot starts. Disk Utility repair shows four error messages: Unable to bootstrap transaction group 2517: inconsistent crosscheck (the same with

My Mac OS Lion 10.7 FileVaulted HD does not boot, prohibitory sign, stop sign appears some minutes after boot starts. Disk Utility repair shows four error messages:
Unable to bootstrap transaction group 2517: inconsistent crosscheck
No valid commit checkpoint found
The volume xxxxxxxxxxxxxx(here it shows physical volume number) was found corrupt and can not be repaired.
Problems were encountered during repair of the partition map
Error: Storage system verify or repair failed.
(the same with 2518, 2519 and 2520 transaction group)
I suppose it is serious bug in Mac OS Lion managing FileVault and wonder what the help could be?

Most likely culprit is your Lacie drives which are notorious for flaky power supplies which cause just the sort of erratic behaviour that you describe. Have had similar issues myself. Lacie has been good about replacing my power converter-- twice. If you have seven of them, good luck finding the bad one or more. Like I said, the behaviour is erratic. Sometimes it'll work sometimes not. I can't comment on Samsung drives because I've never used them and have never heard anything about them. Same with Softraid. Why not just use Disk Utility. Sounds like you're ready for an external hardware raid. This will be much faster, much more reliable, and may even be cheaper than seven firewire drives. Check out G Tech, and Maxx Digital for starters.
Best of luck
Terry

Ibook G4 - won't start up, spins, and shuts down... disk utility repair...

ibook G4 - won't start up, spins, and shuts down... disk utility repair quits. says "invalid sibling link" "volume check failed" "1 volume could not be repaired because of an error" "the underlying task reported failure on exit"
any ideas about how to start and/or recover data ??
thanks

Hi chesterday, and a warm welcome to the forums!
You must repair the HD, your best bet is DiskWarrior from Alsoft...
http://www.alsoft.com/DiskWarrior/
You'll need the CD though.
Unfortunately, Disk Utility can't fix all that much, and the only other Apple Options are erasing the HD, or installing OSX to a second drive, then using Migration Assistant to move stuff over to the new HD.

Disk utility repair permissions stops altogether

I tried running Disk Utility Repair permissions and received a grey message box saying it stopped repairing permissions because of the following error:
Error: The underlying task reported failure on exit.
This same error message was repeated in the usual information box that disk utility uses to provide detail about what it is doing.
I believe the problem occurred because I selected Macintosh HD and added another user (myself) to read/write in the disk permission section of the information window, and I also applied that to all enclosed items. I did this in the first place because of repeated attempts and failuire to install the latest version of skype into my applications folder (being told that I didn't have enough permissions to complete the overwrite task). When I tried verifying the disk I received the error message "ERROR: could not freeze volume permissions denied"
I switched users to a specific administrator account that I reserve for troubleshooting, but got the same result when I tried running disk utility.
As a not unrelated issue when I attach my ipod touch, itunes says that it cannot recognize this ipod, then after about the third time simply doesn't acknowledge my itouch exists.
everything was working well until i did this large change permissions operation.
So does anyone have any idea what I have done (wrong) and how I can fix it?
thanks
John

John Fountain wrote:
I believe the problem occurred because I selected Macintosh HD and added another user (myself) to read/write in the disk permission section of the information window, and I also applied that to all enclosed items.
Uh-oh. You completely trashed your whole system by doing that. Boot up from your Leopard DVD and restore that last Time Machine backup that was made before you made that mistake. If you don't have any backups you will have to reinstall Leopard.
I did this in the first place because of repeated attempts and failuire to install the latest version of skype into my applications folder (being told that I didn't have enough permissions to complete the overwrite task).
When that happens, just trash the old application first, then drag in the new one.
When I tried verifying the disk I received the error message "ERROR: could not freeze volume permissions denied"
I switched users to a specific administrator account that I reserve for troubleshooting, but got the same result when I tried running disk utility.
Changing permissions on the HD and applying to enclosed items hosed your whole system. That's what's causing all your problems. It's doubtful that you will be able to repair it. Restore your system from backup, or reinstall.

Disk Utility: "Repairing disk failed with error Could not unmount disk"

Disk Utility: “Repairing disk failed with error Could not unmount disk”
Hi. I’ve been experiencing some mildly squirrelly behaviour with my system (vide infra) so decided to repair the two internal hard drives on my computer. The primary hard drive is a 74.53 GB ST380013AS that came with the system; its S.M.A.R.T. Status is “verified” and Disk Utility repairs permissions just fine. However, the second internal drive (Maxtor 6L250S0, 233.76 GB, lower Bay, Journaled HFS+), despite being verified by S.M.A.R.T. status and apparently running OK, fails to unmount when I ask Disk Utility to repair it- I get the above error message in red. I have repaired this disk with DiskWarrior (v3.03) and all appears to run AOK. Can anyone tell me why I cannot get Disk Utility to run on this secondary (eg, non-startup) disk? I have tried many times and the error is reproducible. Thank you!
G5 1.6GHz PPC, 1 GB RAM, running OS 10.4.6

Thank you for these useful links!
For others who have this issue, I also found very helpful advice given to this question on the MacFixIt forums by MicroMat Tech3 at
http://www.macfixitforums.com/php/showthreaded.php?Cat=&Board=tiger&Number=76265 1
He said: "Use the lsof command to find the open files on a volume that does not unmount or eject. Open Terminal, located in /Applications/Utilities. Type: sudo lsof | grep Leave a space after the p in grep, then drag the icon of the problem volume to the Terminal window. The pathname for the volume is pasted in for you; press Return. Then enter your administrative password at the prompt, and press Return."
At this point, one now has a list of the open files/processes on the volume that will not unmount. You can use Activity Monitor to terminate these processes if you wish, and then the volume will unmount as it should.

My MacBook Pro started running very slow. I did disk utility/repair

My MacBook Pro started running very slow. I did disk utility/repair and it helped but still very slow. Repair gave me this message, "SUID file 'System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent has been modified and will not be repaired." Any suggestions on this message and/or what else I can do to get my computer back to the way it used to run? Thank you!

It says 199.15 GB free of 499.25 GB. Can I remove the Remote Management program to solve the other unrepairable problem?

Can Disk Utility burn a Blu-ray ISO file?

This is a simple question to pose: assuming only the best of media and burner hardware (so that problems with those don't come into play), can Disk Utility reliably burn ISO images that represent a Blu-ray disk, complete with chapters and whatever else is contained on a Blu-ray disk?
Background
I'll be using Adobe Premiere to generate videos for burning to Blu-ray disk. There seems to be several ways for me to do that, and most of them seem to have problems:
1. From the completed Premiere project, I can jump into Adobe Encore and burn from there. But… many comments on the Adobe forum suggest that route may be problematic. No burn-speed control for instance. The Encore forum is full of people who don't use Encore's burning abilities, but instead use Toast or the PC equivalent.
2. Use Toast. I've just received a special offer form Other World Computing to buy Toast 11 Pro for $49. But… I've been put off buying Toast because of many poor reviews on Amazon. A handful of poor reviews I could ignore, but there are dozens.
3. Use Encore to generate an ISO image of my completed Blu-ray, then use Disk Utility to burn that ISO. But… there are websites in the internet jungle telling me I need to download their product to be able to burn Blu-ray ISO images on a Mac. On the other hand, there are reputable websites (here and here) that explain how to use Disk Utility to burn Blu-ray ISOs.
Basically, I'm confused. It seems to me that Encore > ISO > Disk Utility is the way to go, but I would like confirmation from Apple users that this route will work and is reliable. If not, maybe I should be buying Toast before the special runs out on 30 April.

First, I duplicated one of the links in my original post. The correct links are (1) and (2).
Thanks for the replies, but they haven't cleared up my confusion.
On the last page of the first link, lifted from the California Institute of the Arts website, clear instructions are given for using Disk Utility to burn a Blu-ray ISO.
Right at the bottom of the second link, lifted from the Drexel University website, similar instructions are given for using Disk Utility to burn a Blu-ray ISO.
Are both instructions incorrect in their basic assumption? When their students go to video lab to burn a Blu-ray, do the students find it can't be done?
This is really confusing. Toast gets very poor reviews, yet I've never had a problem with Toast 9. Two tertiary education sites tell me how to burn a Blu-ray with Disk Utility, but I've just received two responses which tell me it can't be done. I'm intrigued.

Disk Utility/Repair Help Please...

Hi
I have been having some issues with a Kernel Panic on my MBP. I am trying to solve them with the help of the X-Lab, but when I do the disk utility>repair permissions I get the following messages:
Repairing permissions for “Macintosh HD”
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Reso urces/Locum" has been modified and will not be repaired.
Permissions repair complete
Does anyone think this may be a contributory factor. If it is unlikely that these are not to do with the Kernel Panic, any ideas as to what they are and what I should do.
many thanks in advance
Rob

Those messages are normal and may be ignored.
This article is for Leopard, but still holds true for Snow Leopard:
http://support.apple.com/kb/TS1448

Disk Utility repairs permissions; 1 hour later they're un-repaired again.

(March 2009 24" iMac. Lion 10.7.3)
I repair permissions on Macitosh HD (boot volume) every-other week. I've noticed that the same permissions seem to need repair each time. Here are the last seven lines from the Disk Utility window from the May 19 run:
One hour later, I repeated the operation. Here are the last seven lines:
I might be overly sensitive, but I detect certain similarities between these results. In fact, it looks like Disk Utility repairs exactly the same permissions every time and those permissions are corrupted shortly after they are repaired.
What's going on here? Should I be alarmed? Or should I panic?

I'd like to delete this post (if I knew how). There are several other threads on this topic, and other contributors report exactly what I observe. It turns out it's a harmless artifact of upgrading from 10.5 to 10.6 to 10.7, rather than doing a clean install of Lion. This article is reassuring: http://support.apple.com/kb/TS1448
I shoulda searched more thoroughly before posting.

Does disk utility repair delete any files on external hard drive?

Does disk utility repair disk delete any files on the external hard drive?

diskutil list
Last login: Sun Dec 21 16:07:46 on console
Justins-MacBook-Pro:~ justinmontoya$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *750.2 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         749.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *748.9 GB   disk1
                                 Logical Volume on disk0s2
                                 4A646B29-3794-4A34-AC98-C0FB505D402B
                                 Unlocked Encrypted
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *500.1 GB   disk2
   1:                 DOS_FAT_32 500HDD WD               500.1 GB   disk2s1
Justins-MacBook-Pro:~ justinmontoya$

Ran disk utility repair permissions....now I can not open any applications on my Mac mini

my Mac mini (mid 2011. OS X 10.9.1). Was running very slow so I ran repair permissions...after re-booting my computer I can not open any apple applications. I keep getting a pop up window that says " finder quit unexpectedly". When trying to open safari " safari quit unexpectedly". I can open skype, google chrome. The computer indicates that wifi is on and connected - however I can't seem to log into Skype or access any web pages. What to do next?
One more thing, I keep getting pop up windows asking for passwords for different items if or keychain...I have tried to put in my password, but that doesn't work. Not sure what password it is looking for but the window won't go away even when I hit cancel

Boot into your recovery partition (restart, hold down ⌘R until you see the Apple logo), and use Disk Utility to repair your hard drive. OS X: About OS X Recovery
Then see if you can restart normally.

Disk utility/repair problem - can't verify disk

i am trying to run disk utility to clean up my hard drive. i was able to verify and repair permissions without a problem. i have run into 2 problems with disk repair:
1 - i can't complete the verify disk portion. i get this error message, "Error: The underlying task reported failure on exit." the next line in the box reads, "1 HFS volume checked - Volume needs repair." this leads to the next problem ...
2 - the repair disk button is nonoperable (doesn't light up) so there is nothing to push for the repair.
i could use any help you can offer. screen shots are available upon request.
thanks,
j

Hi Dr,g
The startup drive can only be repaired from another drive. You cannot repair the boot drive from your HD (which is your boot drive). You have to boot from the install disk.
To do this: Insert the Install Disk 1 into the drive and then select Restart; when you hear the chime hold down C key until the apple logo appears.
This will take you to the installation software, but you do not want to install.
Select your language, then go up to the top menu bar to Utilities and navigate to the Disk Utilities application.
Select the start up drive, then follow the instructions in the First Aid pane where you can click on Repair Disk.
If it finds errors, repeat the process until it reports no errors.
After these repairs, quit the application, and restart normally.
Once restarted normally run Repair Permissions. from the Disk Utility application found on your hard drive in Application/Utilities.
regards roam

Why can't disk utility repair iTunes in "Repair Disk Permission"?

Having issues with Disk Utility's not fixing iTunes "Disk Permissions". Have run "Disk Repair Permission" repeatedly to no avail. Same statements keep coming up. None of them ever go away.

Unless you receive a message that states you could not access a file, you don't need to repair permissions. Regardless of what repairing permissions reports, there aren't any problems unless it states it could not repair permissions. Even a fresh permissions database doesn't know what the current permissions should be. It uses what was current at the time the system is installed, and it rarely gets updated.
As updates change things, the permissions database becomes more and more out of date.
Now, if you are having a problem with iTunes hanging up, then that is not normally caused by permission problems.
Do you have any plug-ins or extenstions for iTunes?
Does it occur in another account?
Does it occur in Safe Mode? http://support.apple.com/kb/HT1455

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.

Can Disk Utility's seven-pass Erase feature do unfixable damage?

I have begun posting about this under a different HD topic, but thought I would open a new thread as this would seem to be an important issue not much remarked on. If anyone has any ideas how to fix this, they are most welcome. First, my cautionary tale.
About ten days ago I removed a lot of financial data from my laptop. I also had consolidated all my passwords into a program called Pastor, so I removed the other insecure files where this info was previously stored (like from my email client, and from a word file). When I emptied the Trash, however, I neglected to use the Secure Empty function, and was suddenly seized with anxiety lest my laptop fall into the wrong hands. So I opened up Disk Utility, and clicked on Erase Free Space, using the 7-pass process which is highly secure.
DU warns you that this process will take 7 times longer than the single-pass erase (makes sense), and when it started up, it gave an estimated time as 4hrs something. When I got up next morning, some 14 hours having passed, it was still working. I just couldn't wait any longer and hit the Stop button. A warning came up saying, "Interrupting this operation may damage a disk or render it unusable." That sounded so extreme that I discounted it. I thought Apple was being a bit Nervous Nellie about it--I mean, all it's doing is writing zeros all over the thing, what's the big deal? BAD IDEA.
What I didn't understand was that the seven-pass process doesn't empty your HD, it fills it up. With zeros, to be sure, but it fills it up. Upon completion, if I understand correctly, it resets itself so that all those zeros are read as empty space. If you interrupt it before completion, it does not reset and sees all that space as full. NOT GOOD.
My HD was now sluggish, programs were quitting unexpectedly, some wouldn't start, and others gave the Error-50 message. Worst of all, Word was saying "can't create or save this file because memory is almost full" or "Cannot save file. Your disk may be damaged or write-protected." And yet the system profile indicates 40GB of free space.
I have tried the following: Repair Permissions (from the Home HD); repeating the Erase procedure using single-pass to completeion; resetting PRAM; Safe Boot and then Repairing Permissions from within Safe Mode; changing Startup Disk to my external and running Repair Disk and Repair Permissions from there; rebooting and running Repair Permissions from the Home drive once more.
That was my latest attack on the problem. Repair Disk is finding no problems, and Repair Permissions is finding nothing to repair. At this moment, the computer seems okay, and maybe this is over. But several times in the past week it has seemed okay only for the problems to start up again, which is why I'm writing this now in case I'm looking at complete drive failure in a day or two. Here are my questions:
Has anyone here had experience with an aborted 7-pass Erase function? Does it truly damage the disk?
Should I try running the 7-pass Erase again, this time letting it go to completion no matter how long it takes? (In order to make sure it properly resets.) Or is that risking making things worse?
Is there some other diagnostic test I cam make to determine just wherein the problem lies?
Am I looking at buying a new HD (the current one was expensive and is only a year old)?
I always get good advice from this forum, so I'm hoping someone knows what to do. Any advice much appreciated.
Giles

DiskWarrior is your best bet for curing Disk Problems that nothing else can.
Other than that, if you can afford to erase and reinstall...
1. Insert the Mac OS X Install disc that came with your computer, 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. (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 Erase tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Highlight the drive, select Erase Tab, then Format type... MacOS Extended Journalled, select the Security Options button, choose Zero Out Data, Erase... after completion hopefully you'll be able to have a clean install.

Can Disk Utility repair FAT32?

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