Warning after Disk Verify/Repair

I just completed a disk verify and repair.
At the end of the process I got the following message:
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
What does this mean? Is there any significance? Do I need to fix this?

Ignore it. It's a common message not an error. It's innocuous.

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DiskUtility (Lion) 'skips' a RAID0 disk verify/repair

Hi,
I have a pair of 500GB disks set as RAID0 on my Mac Pro (3.1) running Lion. I suspect they may have some corruption so I tried to run the Disk verify tool. When I click verfiy or repair the progress bar flashes up momentiarly then disapears and no output is given. It works fine on my other (non RAID) disks.
I ran FSCK_HFS off a LION book USB stick and that works, but the disk util doesn't verify regardless of how I have booted.
Should I be concered? I am sure it ran ok before when I had SnowLeopard loaded.
Also, I want to add a 2nd RAID0 set to this Mac Pro. Currently the 2 500GB disks are in bays 1 and 3. Can I move them to 1 & 2 without breaking the RAID?
Thanks
Simon

Disk Utility striped RAID Verify is fixed in Mountan Lion (OS X 10.8).

Should I do a disk verify/repair before installing Lion?

If so, how? And is it risky to such a procedure?

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. When the menu bar appears select Disk Utility from the Utilities menu. 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.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
It is not risky.

DIsk verify/repair not working

My computer seemed a bit slow and slightly erratic so it seemed time for a rerun of disk utility. Disk repair ran so far, then exited leaving an error message: 'The underlying task reported failure on exit'. I tried verify, then repair permissions, both stated "No valid packages". So I then started up with install disk and Disk Utility ran repair successfully - but verify or repair from the CD still gave 'No valid packages' Can anyone tell me what this means and what I should do?
The machine still seems to start and run OK. My 60Mb disk has about 8.5 Mb free. Is this insufficient and has this affected anything.
Thanks for your potential contributions all you experts out there.

The machine still seems to start and run OK. My 60Mb disk has about 8.5 Mb free. Is this insufficient and has this affected anything.
I assume you mean GB, not MB. 8.5GB is kind of getting down there for Tiger and could have contributed to this, especially if the disk has been in use for a long time with large files and files may have become highly fragmented.
If Disk Utility won't repair a volume you have two options.
One is to copy off what files you can (bearing in mind that your directory has errors so it may not 100% know where all the bits and pieces are to all the files). Then erase the drive, reinstall the operating system, copy files back on.
Another is to buy a utility such as Diskwarrior and let it rebuild the directory. This will be a lot faster, but will, of course, cost about $100 for the software. Other software packages (TechToolPro, Drive Genius, etc.) may be able to do the same. DW is a one trick application but is probably the best at what it does.
Many say keep 15% of your drive free at all times for OSX to have room to run. With a 60GB HD that's only 9GB (which is why I don't like that "15%" recommendation since on a 2TB drive that would be 300GB which is ridiculously large). I check my virtual memory use in Activity Monitor and see that for my computer this is usually 6GB. I figure maybe 3x that is good for wiggle room and try to leave 18GB free at all times.

Warning from Disk permissions Repair

Can you tell me if this below link contains anything I should be worried about?
When I repair diskpermissions this line appears at the bottom finish-line:
Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent” has been modified and will not be repaired.

Nothing to worry about. See http://support.apple.com/kb/TS1448

HT201071 RAW does not work in Mavericks after disk utility repaired hard drive

This worked until I had to repair a corrupted section of the hard drive, now Nikon Camera RAW files do not work for Aperture, Photoshop or even viewing in the finder. Is there a way to download just the RAW file compatability?

The latest download I could find is Digital Camera RAW Compatibility Update 5.04. Others are linked from this Apple - Support - Search. Or consider OS X Mavericks: Reinstall OS X to get all the latest software in one step.
(If you haven't already done so, set your OS X Mavericks: App Store preferences to automatically check for updates so your Mac will advise you when future Apple updates like these become available.)

I just installed 10.6.3 from the disk and then updated to 10.6.8. After restarting I did a disk verify to make sure all was well and it told me it wasn't and that I needed to erase, reformat and install again. Is there something I am missing?

I am really tired. I have been working for days to upgrade my 2008 Mac Pro. I purchased 10.6.3 and did all available updates. I then downloaded mavericks which took forever. Once I tried to install mavericks it locked up my computer on the install screen. I eventually reinstalled 10.6.3 after erasing my HD and I worked perfectly. I again installed the combo pack to update to 10.6.8. After doing this I did a disk verify before going any further and again it said there were problems. I tried a disk repair and was unsuccessful and had to erase and reinstall 10.6.3. What am I doing wrong?
Mike

Your Boot Drive may be dying.
Do not wrestle with it now. Instead, take a new drive and Install Mac OS X on it from scratch. If you do not have an available drive, buy one -- they are well under US$100. There is no need to shuffle drives around, your Mac will boot from whatever drive is specified in System Preferences > Startup Drive.
Once you have a working version of Mac OS X, the full Mac OS X can be applied to resolving those other problems. Solving problems with just the Installer and its Utilities is very difficult.

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

Mac Pro (Snow Leopard) runs slow even after bootup disk is repaired

My Mac Pro running OS X 10.6.8 continues to run exremely slowly even after the bootup disk was repaired and verified. I did a second safe boot then a regular boot and now I cannot even start any of the applicatsion. E.g., I cannot start either Mail.app or Safari.
This ie s exremely upsetting and I would appreciate any help, advice, ... on what I should do to determine the problem.
VB

I have had Time Machine backups and I used to have online backups as well until the provider changed terms on me which made it so much more expensive (but that is another story). I have >600 GB available on my1 TB startup drive and I do have quite of a bit of my media files on an additional 500 GB hard drive.
However, your mentioning power outages and dorps/dips reminded me that such is indeed a problem where we live. My MacPro is wlays on and when I woke up one morning the login window was on so it obviously had restarted. Then just before the Mac acted slower than molasses I do remember my UPS beeping but I admittedly sort of ignored it and forgot all about it since this kind of thing happens relatively frequently.
I just restarted the system now and everything seems back to normal again.
My question: my Mac Pro as well as my monitor are connected to a 350 VA/200 W UPS. What is the advantage of using a 1500 VA UPS?
Thanks.

Disk utility can't verify/repair partition map.

When trying to verify/repair my hdd it gives me the error: "Error: Couldn’t find the target disk for this operation."

You should already have a Recovery HD that was created when you installed Lion or came with the computer pre-installed. The Recovery Disk Assistant simply makes a Recovery HD you can use if one is missing from the hard drive.
However, repartitioning will destroy all the data on the drive so you will have to reinstall Lion. It will also remove the Recovery HD from the drive, so you will need to use your flash drive Recovery HD to boot the computer and get to the recovery main menu. The essential process:
Install or Reinstall Lion from Scratch
If possible backup your files to an external drive or second internal drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
You will need to use the OPTION boot method to select your recovery flash drive as the boot volume.
Repartition the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
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.
Select one partition from the Partition Scheme dropdown menu. Click on the Options button and 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.
Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
When the destination drive is displayed click on the Display Other Drives button and select your internal hard drive as the target.

Plz help...problem w/ verify/repair permissions after software update

Hi,
I just ran the software update from the Mac menu and wanted to verify/repair permissions afterwards. First I used Onyx and when it was executing, the system would not respond after a couple of minutes. So then I tried Disk Utility and I get a message saying "Disk Utility internal error: Disk Utility has losts its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility." And I did, and the same message appears.
What else can I do?
Thanks.
PowerBook G4 15 Mac OS X (10.3.6)

Have just done software download - gone to repair permissions and have got same message. Running on 10.3.9. Anyone any ideas as to what is going on here. Did NOT run repair permissions before the update (Yes I know I should have done). Could this be a factor. There are a number of other threads on this forum concerning this exact problem - but so far have found no explanation or solutions.
Disk varified and reported OK. Mac seems to be operating OK. How does Disk utility "link" to Disk Management Tool?
Any help much appreciated.
Thanks

How do i recover data from an external hard drive that was accidentally deleted? After I verified the drive, a message appeared that said my drive needed to be repaired. When I tried to access the drive again, the 700 Gigs of music is gone!

How do i recover data from an external hard drive that was accidentally deleted? After I verified the drive, a message appeared that said my drive needed to be repaired. When I tried to access the drive again, the 700 Gigs of music is gone!

Stop using the drive immediately, un plug it.
Buy a copy of ProSoft DataRescue 4 and use it to search for deleted files.

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.

MacBook won't boot after trying to repair with Disk Utility. Cannot boot in Safe Mode. Just powers down after about 5 minutes. Apple Hardware Test says error 4SNS/1/40000001:IG0C-0.265 But I cannot find anything on the net about it. MacBook 4,1 Intel.

Hello Everyone,
I am in dire need of assistance I am hoping someone could provide. I have a MacBook 4,1 with Intel Core 2 Duo processor 4GB Ram. It is taking over 10 minutes to boot up past the gray apple screen when I turn it on. First I cleared the PRam (?) then I checked the disk using Disk Utility Verify, and it said the disk needed repairs. So I ran the disk repair and it said it was unable to fix the errors on the HD.
I did a little research and tried booting into the Single User mode, then running /sbin/fsck -fy. It said that it found errors but could not fix them. I ran it two more times as suggested and got the same result each time. I then tried rebooting and now instead of taking 10 minutes to boot up, it takes about 5 minutes on the gray apple screen and then just turns off. I started in Verbose mode to try to troubleshoot the error and it appears the last thing to come across the screen before power down is a message "Apple Yukon 2: RxRingSize <= 1024....etc".
I decided next I would run the Apple Hardware Tester. The test came back with an error code "4SNS/1/40000001:IG0C-0.265". I am very good at searching the web but I could not find any errors that had the IG0C or IGOC or any combination at the end, but plenty of 4SNS/1/40000000(1) errors with different endings. From what I can tell people are saying anything with 4SNS/1/4000000 is a logic board failure, but this computer was literally just booting this morning until I did the /sbin/fsck -fy.
Any suggestions are welcome and appreciated.
Thank you for your time.

You've a couple of issues .... when Disk Utility tells you it can't repair a drive, if the error is a soft error, like an invalid tree or node, Disk Warrior (or TechTool Pro) can handle it. However, if Disk Warrior (or TechTool Pro) can't handle it, you can erase and write zero's to the hard drive and restore to it, or you can buy a new hard drive. Sometimes running SMART Utility can provide additional insight into the health of the hard drive.
THe 4SNS error is a sensor error. You could install iStat Pro to see if something is indeed getting too hot or remaining room temp or less. You may need to take it into an Apple shop so they can use their thermal diagnostics to test and isolate it further.

"Disk not readable...", Verify & Repair fail, Zero Out, HFS+ still fail

First, a time machine error came up saying the volume could not be found. Tried disk verify, disk repair (in disk utility) restarting, reconnecting, but to no avail. On restarting, computer says "Disk was not readable by this computer." I then Zeroed out all the data and reformatted the drive to Mac OS Extended (Journaled). TM worked for most of the day until tonight when another error message came up saying that the next backup failed because it required 168GB, but only 49GB was available. Yet I had done virtually nothing since the last backup the hour earlier. I clicked "Back up Now" to try and get it to maybe re-evaluate the situation and maybe do the backup, but instead, I get the error that I got before - "The volume could not be found" (or something to that effect). Upon restarting, I again get "The disk you inserted was not readable by this computer".
Is there something I am doing wrong? What can I do to fix this, or prevent this from happening later?

Alias7 wrote:
"Disk Utility stopped verifying "disk2s1" because the following error was encountered: Filesystem verify or repair failed" In the details box, it says:
"Verifying and Repair volume "disk2s1"
Invalid node structure
Invalid B-tree node size
Invalid node structure
Invalid B-tree node size
Volume check failed.
Error: Filesystem verify or repair failed."
This is what the error message was before, and is what it is now.
You had these sorts of errors, then zeroed-out the drive, now you have them again?
There's only one conclusion: your drive is failing. They don't always just crash and burn.
Note that the volume name should be "Time Machine", but Disk Utility sees it as "disk2s1" for some reason.
That's it's internal name to OSX. Use +System Profiler+ (Apple menu, +About this Mac,+ then +More Info.+
Look in the sidebar for FireWire or USB (whichever it is), select it, and you'll see disk2s1 listed as BSD name.
Time Machine Buddy seems to freeze most of my other widgets (can't type in calculator, can't delete Time Machine Buddy). It doesn't seem to do anything either, It just sits there saying "Backup Status" and "Messages" but no messages, just "....".
That's not normal, if you've had a successful backup recently, or one currently in progress.
An earlier post had a similar problem, because somehow he didn't have permission to read his own system log. From the Finder menubar, select Go, then +Go to folder,+ then type /var/log
That should list, among other things, system.log Double-click it. If nothing shows in the center portion, post back and we'll fix it.
But your main problem is an unreliable drive.

Warning after Disk Verify/Repair

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