Verify disk in disk utility

Hi,
in disk utility when I run verify disk on the Mac's hard drive, I get this:-
Verifying volume “Macintosh HD”
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.
Volume Bit Map needs minor repair
Checking volume information.
Invalid volume free block count
(It should be 6622312 instead of 6619597)
Volume Header needs minor repair
The volume Macintosh HD needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
How do I repair this?
thanks

Hi Niel,
That fixed it alright. Thanks a million.
What was wrong anyway?
Also something odd but minor has happened - not sure what the term is, but the group of items in the top right hand corner by Spot light have become a bit jumbled since safe booting. they've changed order and something is missing [a telephone symbol].
cheers.
also thanks to sig.
Message was edited by: NeddySeagoon

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When i burn a disk in Disk Utility, the burn completes but the verification process does not complete and my disk pops out. The error message i get is something like this "burn failed because disk cannot be verified," PLEASE HELP

when i burn a disk in Disk Utility, the burn completes but the verification process does not complete and my disk pops out. The error message i get is something like this "burn failed because disk cannot be verified," PLEASE HELP.
Also when i take the disk out it seems fine nd everything seems to be burned onto the disk. I am buring mac os x lion onto a disk.
The disk i am using is nextech and i am burning at the slowest speed (4x).
Also this is my 3rd time trying to do this and the verifying process keeps failing.... what do i do?

see there
http://www.techmixer.com/best-free-mac-burning-software-for-mac-osx/
what you like most
try different brand of CD/DVD

Disk Utility, Verify Disk & Repair Disk unavailable

Hi there!
I want to check my Hard Disk with Disk Utility, but none of the two buttons (Verify Disk & Repair Disk) are available, I started up from my Mac OS X installation disc, and once, it told me that the disk had errors and needed to backup my files, so I went back and backed up with Time Machine, then out of curiosity went again and I started up from my Mac OS X installation disc, and this time it told me that the disk was fine and there wasn't any errors, but when I open Disk Utility with my Mac, none of the buttons are available, is this normal?
What should I do?
Context: Before all this, I installed a program called Tuxera to create a NTFS partition but my Mac started to act weird, so I deactivate and uninstalled this program, that's when I went to verify the disk.
Any Help would be gratefully appreciated

I hope I'm wrong but it sounds very much like Tuxera did something to your startup disk. I would also be somewhat concerned about the integrity of any Time Machine Backups you made after you ran Tuxera.
The safest thing to do would be to start up from your Snow Leopard disk and see if you can *restore your system and data from your Time Machine backups to an +external HD+* formatted using Mac OS Extended (Journaled) and GUID Partitioning. Formatting will erase all the data on that disk. *If you try to restore to the internal and it doesn't work you will probably lose most of your data.*
Startup your Mac using the external and check very carefully to see that you have all your data and that everything works as it should. If it does you can safely reformat your internal drive from Disk Utility on the Leopard disk using Mac OS Extended (Journaled) and GUID Partitioning. After that you can clone the external drive to your Mac's internal drive or install from the Time Machine backups.
If the Time Machine backup doesn't work you will need to run a disk data recovery utility to see if you can salvage your data from your internal drive.
I don't use PC's so someone may be along with much better advice. However, unless and until someone more knowledgeable about PC file formats comes along to help *don't reformat your internal drive until you know your Time Machine backups are OK.*

Burn disc verifying vs. verify disk with disk utility?

is there a difference from *verify disk* in disk utility and the verifying process after burn disc?

eirifying a hard drive just looks through the directory for any errors or inconsistencies. Verifying a burned disc reads all the files and compares them with the original data on the hard drive.

IMac OSX 21.5 late 2010, had MTN Lion on it. Prob with thousands of my photos in IPhoto all mixed up and intermingled with thousands of odd images I had not seen before. After trying to erase them, too numerous, I used original disk for disk utility. Disk

Utility had issues with erasing disk. It took 36 hours and then said it was a failure. I tried repairing and verifying and partitioning. Finally, I used the original disk to install the system. It installed Snow Leopard. I was unable to install the 2nd disk ILife items, so I repurchased those. I thought I was all set but it would not upgrade past 10.6 or something. After it is all set up, I realize there is nothing on the computer. The updates were in download folders and in reading the install logs, it said the install disc was read only and the system was installed from somewhere else and then it was reaped and something about a sandbox and it seemed important that all the Asian languages were added in, even though I unchecked that option. All these odd programs and windows are on there, which I do not use and do not want on there and do not see it on there. So, I tried this several more times, it appears someone is using the Root user. I tried to disable the root user as I do not understand how to set it. Last night, I took the main partition that I put everything on and made me the owner and took over that whole disk. Then the other two were locked, do I ejected them. Then I wanted to erase 4 things - an iDisk an some other trash and the trash is suddenly emptying 989 items, I think were the logs. So, I turned it off. What is going on? I was unable to fix the install disk. The permissions were not repairable on the partition, it was verified as being ok though. Has someone taken over my computer? How can I get rid of them and get it fixed? It has affected my iPad and my iPhone 5. I really need these devices. I am an artist and need to take and post photos of my work. Is this Chinese people doing this and are they nearby? I did notice they wanted me to sign up for mo ole me. in the logs it even said, no [email protected]. And no password access at that address. So, I was also not able to update to Mountain Lion and Icloud again. at one point it looked like I had. i downloaded everything I purchased that was in Icloud to Itunes and it showed the lion in Mail but there was no cloud icon and Mountain Lion said to install, meaning it was not installed. System information confirmed this. oh, and my main disk in disk Utility is named with an unchangeable name that is the serial number of the mac and it says it is an in/out sata media drive. Please, please help me.

1. If you break your post into paragraphs it is much easier to read.
2. I have no idea what your post is referring to, and how - if at all - it relates to iPhoto.
3. It's a good idea to re-read what you've posted, and ask yourself how it might look to someone who doesn't know you and doesn't know what's going on with your machine.

Repair Disk on disk util doesn't work

Onyx maintenance indicates my startup disk requires repair.
When I reboot from my system DVD and attempt the repair I get the following dialogue
" Verify and Repair disk - eMac HD.
Checking HFS Plus volume
Checking Extents Overflow file
Checking Catalog file
Invalid extents entry
Volume check failed.
Error: the underlying task reported failure on exit.
1 HFS volume checked
1 volume could not be repaired because of an error."
I've never encountered the term "extents entry" before.
Any idea what the problem could be? What fixes might be available?
So far all is working, but I'm waiting for the problem to leave me without the ability to continue working with this machine.
I am backed up.
Any help appreciated.

You must repair the HD, if Disk Utility or fsck should fail to repair it, your best bet is DiskWarrior from Alsoft, you'll need the CD to boot from if you don't have another boot drive...
http://www.alsoft.com/DiskWarrior/
Your best bet is DiskWarrior, you need the CD/DVD though.
http://www.alsoft.com/DiskWarrior/
But others that may work…
Drive Genius…
http://www.prosofteng.com/products/drive_genius.php
TechTool Pro…
http://www.micromat.com/index.php?option=com_content&task=view&id=31&Itemid=83
Only other Apple option is to erase/fromat the drive.

MacBook stuck on apple logo. Repaired disk using disk utility, but when I restart, I'm still stuck on apple logo. Please help!

My MacBook is stuck on apple logo and heats up. I tried restarting in safe mode but it's still stuck. I also tried to repair the disk using disk utility. It says that HD is ok, so when I restart, I'm still stuck on the logo. Is there a way I could fix this without loosing my files?

Restart your Mac while holding down the Command + R keys so you can access OS X: About OS X Recovery
From there you can reinstall OS X, repair the startup disk, and restore from a Time Machine backup.
FYI ... wiht ML installed, the only way to repair the startup disk is OS X Recovery, not the Disk Utility app installed on your Mac. You can verify but not repair.

Problem Repairing Disk using Disk Utility

Hi Everyone,
I'm having trouble with my PowerBook G4 and I hope I can recover my files on my HD. Recently, while trying to boot it up, I would just get the grey Apple with the spinning timer indicator underneath it. It would stay like that for far too long and I would have to shut it down and try again.
So I tried rebooting from my installation disk and running Disk Utility. I verified the disk and then got an error, so I tried to repair the disk. This is what I have on my screen now:
Verify and Repair Disk "Macintosh HD"
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog File.
Keys out of order
Rebuilding Catalog B-tree
The volume Macintosh HD could not be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error
Repair attempted on 1 volume
1 volume could not be repaired
I know the files on the HD are there because when I do a "restore" I can go into the file structure and see them. I was planning on getting an external HD to back up my files so if that's part of the solution, I am game.
Any advice here would be great. I really miss my Powerbook.
Ken
Powerbook G4 Mac OS X (10.4.8)

Hi Ken, Welcome to the Discussions!
You will probably need to do an erase & install. This will not preserve your data so be sure to get what you can off the hard drive.
There is a fix that may work for keys out of order--and that is to run DiskWarrior on your hard drive. You can see information about DiskWarrior here: http://alsoft.com but don't just buy the web download--you need the bootable CD.
Good Luck!
Joe

Verifying Disk and Disk Repair ...

Please forgive me, but I know very little about this. I just ran "Verify Disk" on my hard drive in Disk Utility because my firewire devices aren't working and got this message:
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Illegal name
Illegal name
Checking multi-linked files.
Checking multi-linked files.
og hierarchy.",0)
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume The volume osh HD needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
It won't let me repair the disk, though.

Disk Utility will likely be able to repair this (Disk Warrior is a fine product but you have to buy it, so try the free Apple solution first.)
If you run Disk Utility & click on the "First Aid" tab, please note the last sentence in the onscreen instructions in the window just above the white area where the results of the verify come up.
It explains that to repair your startup drive, you start up from your installer DVD, & run Disk Utility from the Utilities Menu. If you are still uncertain about what this means, click the "?" bubble button in Disk Utility's window & its Help will open to an overview page. Select "Testing and repairing your startup disk" (as it explains) for more detailed info.

Ello, I changed my Imac hard drive which no longer worked. I installed a hard drive Western Digital 500 GB 7200 rpm SATA3 WD5002AALX 32M Black. Sometimes I see the hard disk in the utility on the Starter CD, but access seems very slow. By cons when I want

Hello, I changed my Imac hard drive which no longer worked. I installed a hard drive
Western Digital 500 GB 7200 rpm SATA3 WD5002AALX 32M Black. Sometimes I see the hard disk in the utility on the Starter CD, but access seems very slow. By cons when I want
install OS X 10.4.2 on the hard drive, I do not see the disk. What is the problem?

Thanks for the help
I started on the installation CD OS X 10.4.2, I used Disk Utility
to partition the disk according to the document that you have proposed. unfortunately
I have not succeeded. When I partition the disk, even if I called it Macintosh HD, it
does not keep the name and it shows disk0s3 instead. I did an erase on disk.
When I mount the disk it tells me that I must repair. When I tried to repair, I got
the following message:
Volume check failed
The underflying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error.
I also had a message:
Invalid b-tree node size.
Note: The disc is new, but it has already been formatted on a computer Imac 27 inch 2011 OS X Lion.
I used a USB 2.0 to SATA cable to adjust the formatting.
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Multiple burns on a disk using Disk Utility??

Hi,
I found these notes about doing multiple burns on a disk (see below and it mentions changing the extention name to .img so that disk utility will give you the make disk appendable option.
I understand all that but my question is will this change the ability of the file to open in a new or old Mac (I have an old iMac G3 slot loading, PowerbookPC G4, and the new intel C2D 17"? My assumption is it will be fine in a new Mac but what about my older G3? I want to burn a disc and leave it appendable but am afraid by changing it to .img it won't open in the G3.
Thanks,
S.
1. Collect the material you want to burn in a folder on your Desktop. Open Disk Utility.
2. Select Disk>New>Disk Image from the Folder menu. Use the dialog box to navigate to the folder you have created on your Desktop, and select "Image." Name your new image, select a destination for the new file, and click "Save." Your file name should end in .img.
3. Back in Disk Utility, click the toolbar "Burn" button, navigate to the disk image you just created, selected, and click "Burn." Another dialog box will appear. Click the blue triangle but in the upper right hand corner. The dialog box will expand, giving you an additional selection of options. Click "Leave disk appendable," then click the "Burn" button to initiate the burn.
4. When you want to add a subsequent burn to that disk, repeat the process described above, but in the final dialog box, you will then see an "Append" button instead of a "Burn" button. This process can be repeated until there is no more free space left on the disk to create appended sessions.

I don't know if these are helpful to your discussion.
From System Profiler;
MATSHITA DVD-R UJ-846:
Firmware Revision: FB2U
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -RW, +R, +RW, +R DL
Burn Underrun Protection CD: Yes
Burn Underrun Protection DVD: Yes
Write Strategies: CD-TAO, CD-SAO, DVD-DAO
Media: No
Also an Apple KB article;
Factors that affect writing to or reading from optical media

Verify & Repair Disk Permissions VS. Verify and Repair Disk

Is there a document that explains the differences in these two actions?
Thanks.

Hi Trevor,
Repair Permissions and Verify or Repair disk are two separate processes.
Repair Permissions is explained here.
Verify/Repair Disk is explained here.
-mj
[email protected]

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What does "Accessibility" mean?

Had the same problem, finally realized that the FileVault Encryption was struck at 19%. Speed back up to normal after I disabled FileVault using terminal command - sudo fdesetup diable
To check whether the FileVault is the culprit, go to System Preferences --> Security & Privacy --> FileVault to see if encryption is in progress.. For me the blue bar was less than a quarter with status 'estimating time remaining'..
Then open Terminal and type in: sudo fdesetup disable
It will then ask for the admin password (to be it asked twice), then it was disabled... Back to normal life again..
Here is my terminal log for reference:
Last login: Tue Oct 21 23:05:13 on console
Gowthams-MBP:~ asgowtham$ fdesetup status
FileVault is On.
Encryption in progress: Percent completed = 18.80
Gowthams-MBP:~ asgowtham$ fdesetup status
FileVault is On.
Encryption in progress: Percent completed = 18.80
Gowthams-MBP:~ asgowtham$ fdesetup status
FileVault is On.
Encryption in progress: Percent completed = 18.80
Gowthams-MBP:~ asgowtham$ sudo fdesetup disable
Password:
Enter a password for '/':
..fdes.
FileVault has been disabled.
Gowthams-MBP:~ asgowtham$ fdesetup status
FileVault is Off.

Missing HD space and cant repair disk on disk utility

Ok this has been bugging me for past week now. First off I am missing 40GB of my 80GB HD. I know that disk are suppose to have less then the total but this data is just missing. I have used what size and Disk Inventory X to look for files that are taking up data. I have gotten rid of everything that takes up alot of space. The total size of everything together does not even total 20GB.
The reason I believe is awhile back I tried to make a partition for windows Xp but later deleted it. I do not know the size I made said parition but It may fit as to why I am missing space.
Lastly I have tried to use repair disk in disk utilities but it wont let me without running verify disk which when i use says that it failed and that I need to repair and verify using the OSX installation disk which I cant find. I probably wont be able to find the disk so is there anything I can do to fix this?
I just spend alot of money to get an XP disk and upgrade the RAM on this mac and dont want it to have been a waste. Help me please

Repairing your HD via the OSX installation disk is your first priority. Do you know anyone else with a Mac running the same version of OSX? Close to an Apple retail location?
How did you attempt to load XP the first time - bootcamp? How did you delete the partition?

Low level Hex disk edit & search util needed- suggestions please?

low level Hex disk edit & search util needed- suggestions please?
Maybe It's just late & I've had a bad day.... but I haven't needed a low level Hex disk edit & search utility suitable for an Intel 10.4.x Mac until now and can't seem to locate one.
There should be plenty of free/shareware options (because they're handy and not particularly hard to write ... and every tech head needs one some time)...
Any suggestions please?
[I haven't bothered with the commercial stuff - like tech tool/Norton/*insert name here* Recover/repair, Something Genius etc. etc. because they are all without exception either unnecessary (just pretty shells for the underlying UNIX/X utils) useless AND greedy $-gougers, just useless, or just money gougers so I couldn't even say whether any still have a 'feature' like the old Norton Disk editor app had - but a quick look about suggest not...]
grumble
Any specific suggestions/links, please?
TIA

they are all without exception either unnecessary (just pretty shells for the underlying UNIX/X utils) useless AND greedy $-gougers, just
useless, or just money gougers
Such a high-esteem for fellow human beings - and
programmers...
You know, there are some good decent nice people
behind those names?
You'd be amazed at how much testing goes into a product.
[SNIP]
g'day Hatter...
Yes, I know there are some good decent nice people behind those names..fellow human beings - and fellow programmers (so yes, I do know...) In previous incarnations I have 'thunk up' and developed, Marketed & supported considerably more complex Apps & systems myself - I even know some of the people you mention personally - and they are usually decent Blokes/women but normally, it isn't the programmers who make the decisions on pricing/features/support/performance/upgrade costs & cycles etc...
My only error was, I agree, the phrase 'without exception' - but (mainly) only because I haven't bought/tested & used all of them very very recently. So I offer my apologies to those to whom my remarks should not apply (long, late night/early morning frustration...)
However, I also offer a few simple pertinent examples:
One 'top name' Utility company had a 'save your Mac HD' product on the market for some time that was almost guaranteed to TRASH it irretrievably but did NOT say so - nor did they help or compensate those they harmed.
Several are selling what amount to simple, pretty, GUI shells for 'free' or OS-included command line tools - no more, no less but do NOT say so and are asking good money for the 'software'.
Many are asking ridiculous prices for "regular upgrades" so you can keep their tool current with your Mac OS - one wants US$100/year for it, another, $15 per u/g, others, US$25 or $40 per u/g; one asks 'only' $10 - and these 'upgrades' are happening 3,4,5,6 times per year and are necessary for the Marketing company to keep their product Saleable to new purchasers and new Macs (as well as for important Bug Fixes - and only co-incidentally to keep it performing with your current Mac and OS - which is what you paid them for in the first place).
I won't pay for a product 3, 6 or 9 times and I won't advise my clients to: It's not unreasonable for a person to expect a 'sensible lifetime/currency' of Product X for Computer Y - say 3 years (e.g. AppleCare). I wouldn't object to paying for an "upgrade" at that point - IF it's worth the money.
Software is Waaay too expensive in many cases and is simply inviting 'piracy' - from people who have already PAID for the product: sadly, they are killing their own Gooses.
Seriously, one product costs ca. US$100 to Buy in the first place
To keep it actually working for you costs about the same again Per Year - a 3 year 'sensible lifetime' or 'currency' cost of US$300 or $400! [That'll buy a lot of 'bare drives' to put in a handy Firewire case for automatic backups in Background, differential backups etc. and other simple practices which render this product type largely unnecessary ].
For what? A relatively simple set of utilities which would actually cost the company involved less than $5 total each - over 3 years - to make available to existing ( or 'current') owners. [Applecare 'complete' Hardware and Software warranty & support on a US$2000 iMac - which includes Tech Tools Pro Deluxe or somesuch costs about US$165 for 3 years. Total.]
Having designed, developed, Marketed, supported & maintained more complex Applications to/for a sizeable user-base (in US terms) over multiple complete Series of Product 'life-cycles' - regular Updates and all, I think I know where the pirates are.
These practices have been rampant in the MSWindows™ market for a longtime. It's a real shame to see it in the Mac world.
I have all the esteem in the world for those fellow human beings who deserve such - and programmers who are 'good decent nice people'.
I have none to spare for monopolists, 'exploitationists' or any of those who take unfair/unreasonable advantage of their fellow human beings - AND of programmers who are 'good decent nice people' (like, say, ME... .
In any event, as I said: they are "killing their Gooses": I know of at least 6 software companies which went this route a while back. All are dead or dying.
Thank you for your help - and the opportunity to apologise for 'mis-speaking'.
all the best,
orig g4 733, many others thru (the luvly) Macintels New & old Macs, Wintels, MacIntels, other systems...

Cannot burn encrypted disk w/disk utility after Yosemite upgrade

I upgraded to Yosemite and now I cannot create an encrypted disk with disk utility. I have a disk loaded with a project I recently completed with Final Cut X and I need to make an encrypted .cdr file for the purposes of making write protected copies for my client. I have always been able to do this by selecting the volume in Disk Utility, clicking New Image, and selecting DVD/CD master for the image format and then my encryption level (usually 128-bit) ALWAYS WORKS but not since upgrading to Yosemite. Now every time (after restarts, etc.) I'm getting first a dialogue box telling me it's starting to create the .cdr then quickly an error box that says: Unable to create "<disk name>.cdr" (Inappropriate ioctl for device) HELP!!! Need to get these disks burned and out to clients ASAP!!!

Are you trying to save the file to the desktop? I read elsewhere that Yosemite doesn't like that permissions wise. I was able to successfully create a .cdr by changing the file location to Documents.

Verify disk in disk utility

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