Cant repair Disk

What does "the Volume Header needs minor repair" means? I can verify disk but cant repair it.

You cannot repair the startup volume while you are using it. You will need to use the Install Disk to repair the startup volume. Restart your Mac, insert the DVD and immediately press and hold the C key. When you get to the Installer choose your language. Then you can use the Disk Utility in the Utilities menu to repair your startup volume.

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Mac OS X cant repair disk backup

what does this indicate? I am new to mac

Mac OS X cant repair disk. Backup & reformat as soon as you can ..was the full message. Which has appeared a few times with a red exclamation mark.
Yesterday I plugged in my WD Ext H/D that I use for back up to my mac
(I dont understend partitioning...my son did that initially..my WD had "Storage" & "Backup"..but after I plugged the WD into my mac "Backup" didnt show up on desktop...I restarted backup using "Storage" thinking that was OK b ut then "Enter Time Machine" did'nt work ...
later that evening "You need to restart your Computor. Hold down the powerbutton for several seconds or press the Restart Button" then "Report this error to Apple"
At that point I closed down my mac & started fresh today...
totally confused...how did I loose my backups prior to the restart & can i get them back ????? what have I done wrong ?

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?

Cant Repair Disk on iMac

When I verified my hardrive on my imac, it said Erro: The underlying task reported failure on exit. Volume needs repair. But my button for Repair Disk is dimmed and cannot be selected. What do I do?

Thanks b-behr
For those who might read this post in error, though...
It is a known Leopard problem that disk verification and repair is broken....
When you do a disk repair or verification, just click the repair and WAIT -- you will see nothing happen for 10 minutes, as if your computer has just stopped responding -- then suddenly it will do your entire verification and repair and post your report. Most users would have log ago already logged off.

Mac OS X Boot failure... I cant Repair HDD with OS Disk,Shows Repair Failed. I cant backup my files from HDD. Backup failed. But I need my all datas from HDD. I dont want to format. Cant enter safemode also. anything else..

Mac OS X Boot failure... I cant Repair HDD with OS Disk,Shows Repair Failed. I cant backup my files from HDD. Backup failed. But I need my all datas from HDD. I dont want to format. Cant enter safemode also. anything else..
I installed XP @Bootcamp, I cant access my Mac HDD via XP..
What I do??? Please help me.. please...

You can try DiskWarrior (about $100).
If that doesn't work, and if you have no backups at all, you might need to send your hard drive to Drive Savers or a similar service. It will cost a lot of money to get the data back, I'm sorry to say.

Leopard 10.5.1 cant repair permissions or verify disk etc etc etc

ive had 10.5.1 for months
i cant get disk utility to carry on its job
the blue progress line does not move
many updates wont finish like Adobe bridge 3
it takes a second for any folder to open instead of immediate like in TIGER
i have tiger for the desktop. can i install it on the MBpro from scratch
it works flawlessly. Leopard is crap right now.. at this stage i mean
can i erase the disk and put in TIGER 10.4.11
im sick of this and i cant travel with leopard if it acts up

Yes, you can erase your disk (hopefully you have an external drive with a 10.4.11 clone, or a way to back up your files before you erase) and reinstall 10.4, and update to 10.4.11.
I haven't experienced all of the issues you mention, but in disk utility, be patient; the progress bar does hang for awhile, but eventually, (5-10 minutes, depending on the size and condition of your drive) it will progess, and finish permissions repair.
Some of the other things you mentioned may be the result of an upgrade install of Leopard, rather than erasing and installing fresh; if you do a clean erase and install know, I would bet that your problems would disappear.

Cant repair a Disk Image Volume in Tiger

Verify and Repair disk StreetAtlas_USA4.0.img
Checking HFS volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid extent entry
Incorrect block count for file
Checking Catalog hierarchy.
Checking volume bitmap.
Volume Bit Map needs minor repair
Checking volume information.
The volume StreetAtlas_USA4.0 needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error
1 HFS volume checked
1 volume could not be repaired because of an error

This can make NDIFs...
http://www.kelleycomputing.net/freedmg/
http://www.kelleycomputing.net/freedmg/help/using.html
Or maybe if you have Disk Copy around...
http://www.macosxhints.com/article.php?story=20040601000808938&mode=print

Hard drive problems - cant repair HDD

Hi!
Ealier today I left my MacBook Pro to download som things while I was going uot for a while. And when I came back and woke up the display it wouldent wake properly. just running the screensaver with the "I'm thinking"-rainbowdisk for a mouse icon for like 5-10min. So I did a hard reset, and started i up again. only to get a grey screen and a flashing folder with a questionmark. So I started searching the Apple support pages, tried reseting the vram (or whats it called (the cmd+opt+r+p reset command)), tried the shift+cmd+v reset command (nothing happened) and lastly tried booting from the installdisk. That worked, but when I first tried to run the "startup disk" the hard drive dosent show. so I ran the disk utility, and found it only showing the DVD-drive. then I ran the systemprofiler to look for the HDD, and found it in the S-ATA folder. so I tried to run the disk utility againg, but still just the DVD-drive showing. then, suddenly, after some random clicking at the different menu buttons, the hard drive is showing. and so I mark it and press verify. it verifies but I still cant press any of the "verify disk premissions", "repair disk permissions", "verify disk" or "repair disk" buttons in the "first aid" window. but I thought maybe the "startup disk" utility now also could see the HDD as disk utility did, but no..
I'm getting kind of frustrated now, and would appriciate any help I can get!

This is a "canned" set of directions I wrote, so I realize you've coverd some of it:
Boot from install disc (insert disc > restart > immediately hold down the c key and keep holding it until you see “Preparing Installation”) > at first screen select the language and click Continue > click on the Utilities Menu in the menu bar > select Disk Utility > select your HD in the panel on the left side (the name of the HD’s manufacturer and the model number, usually the top item in the list) > look at the bottom of the main window next to S.M.A.R.T. status and see if it says “Verified” (good) or something more ominous like “Failing.”
If S.M.A.R.T. status is "Verified," run Repair Disk > click Repair Disk at bottom of main window. Run this at least twice, and keep running it until it says “appears ok” twice in a row. If that doesn’t happen, you may need a stronger utility (such as DriveGenius, TechToolPro, DiskWarrior) or if the directory is damaged beyond repair, you may need to reinstall the OS, or you may have a damaged HD which will need to be replaced (repair utilities can only repair the directory structure, not the HD itself). When this is finished, quit Disk Utility, quit the installer, and restart. Once booted normally, go to Applications > Utilities > Disk Utility and run Repair Permissions.
Do you have a backup? Do you have any data that needs to be saved?

Stuck in Lion installation *LIMBO* - disk damaged, disk wont repair, disk is locked, wont revert back to snow leopard

I'm stuck in Limbo. I cant complete the install and cant revert back to snow leopard. All I have are the installer utilites (including safari).
I'm running a summer 2009 release macbook pro 17 inch. I downloaded the Lion install app and proceeded to follow the instructions and guided. After less than a minute the install stopped to say that it could not be completed because the hard disk is damaged and can’t be repaired.
So...I went to disc utility to verify the disk and this is what I got.
Verifying volume “Macintosh HD”
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Incorrect number of file hard links
Bad hard link creation date
(It should be 3325742596 instead of 3340504404)
Hard link record has data extents (id = 2888169)
Checking multi-linked files.
The volume Macintosh HD could not be verified completely.
Error: This disk needs to be repaired. Click Repair Disk.
So I put in my Snow Leopard disk and went to repair disk. Now, THIS is what I got.
Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
So then I wanted to go back to Snow Leopard at least, but I cant. When I go to “Startup Disk” and select my Mac 10.6.8 drive, it says:
You can’t change the startup disk from the selected disk.
Startup Disk could not gather enough information on Selected Disk.
So that’s annoying because it keeps me stuck in that installation "limbo" - not able to finish installing and not able to go back.
I restarted, holding down the OPTION key, but it only gave me one boot selection - the installer itself.
So then I try yet again to install this thing because there’s not much else I can do...but now it won’t even start installing...when the installer screen asks which drive I want to install it on, for which I would of course choose my Macintosh HD, it says in subscript underneath Macintosh HD:
“This disk is locked” and it wont let me select the “continue” button to begin the installation.
Please help, someone.

phew, just got everything back to "normal"
I turned off my mac for about 10 minutes and then started it up again. Also I think this time i inserted my snow leopard disc at just the right time, not too early not too late.
Whatever it was, when i went to "Startup Disk" the snow leopard disc showed up!
So then I went to disk utility after booting the snow leopard installer for the first time. It said it repaired one thing but then stopped and said it couldnt repair it and told me to back up and reformat.
Then I just ran a simple verify again and it said the HD was "OK" - it gave me a clean bill of health?!?!
So then I went to startup disk again, and was finally able to get out of limbo and back to good old snow leopard.
Now I'll install Lion, but taking all cautions beforehand...maybe i'll wait a few days first though.
Thanks to everyone.

Superdrive replacement not working? Try "repair disk permissions"

Like many other folks, the superdrive in my iMac 7,1 died. I ordered a replacement from Powerbookmedic and installed it following ifixit's guides. Upon booting the iMac I found that the SuperDrive would accept a disc and the iMac saw the SuperDrive but OS X wouldn't recognize any disc I put in the drive and after trying to read it would eject it. After trying various things, I found that other users on my iMac were able to use the new drive just fine, it just wasn't working for me.
I tried various fixes but in the end "repair disk permissions" under disk utility did the trick. Posting here in the hopes of helping others. Joel

I cant access any of the files on the hard drive to back up. Do you know of a link on how to format and reinstall. It would be my first time. I have diskwarrior and it will not load at all.
Under the Erease tab I have
MAC OS Extended
MAC OS Extended (Journaled)
MAC OS Extended Case Sensitive
MAC OS Extended Case Sensitive journaled
MS-DOS Fat

Cant Load Disk Image files

Verify and Repair disk “StreetAtlas_USA4.0.img”
Checking HFS volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid extent entry
Incorrect block count for file
Checking Catalog hierarchy.
Checking volume bitmap.
Volume Bit Map needs minor repair
Checking volume information.
The volume The volume asUSA4.0 needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error
1 HFS volume checked
1 volume could not be repaired because of an error

I tried repairing the disk image from within the Finder. Install disc? You mean the boot DVD? As far as I understand the finder cant be loaded in OSX from a boot CD, like it could be done in OS 9 and earlier.
I do have Tech Tools Pro, perhaps I need to use it, as I do not want to create a new disc image from that CD.
They no longer make Street Atlas for the Mac, so I need classic to run that CD. Its really useful for those that are traveling and without Internet access, and for those that want very detailed maps that MapQuest, Google, or whatever usually cant provide.
Okay should I try repairing the disk with Tech Tools Pro?
John

UPGRADE TO MOUNTAIN LION WON'T REPAIR DISK

SINCE I UPGRATED TO MOUNTAIN LION I CANT REPAIR MY DISK (i started up with cd to repair from disk utilities) BECAUSE I HAVE THE DVD FROM THE PREVIUS VERSION WHICH CAME WITH MY MAC BOOK PRO WHEN I PURCHASED IT

That's why Mountain Lion - if your disk isn't completely hosed - has a Recovery partition. To access it, hold down the Command and R keys whilst booting and use Disk Utility to verify and, if needed, repair your disk (if it can be repaired).
Good luck,
Clinton

Couldnt repair disk because it couldnt be unmounted

Im trying to repair an external hard drive I have because I cant read any files that I put on it. Whenever I tried repairing it using disk utilty, it says "error: couldn't unmount disk". Ive closed all applications that could be possibly using the hard drive and it still cannot repair. What do I do now?

Reboot your machine.
Using Disk Utility to verify or repair disks - Support - Apple

Disk Utility says "drive can't be repaired, disk and restore your backed up files."

My Mac Book Pro froze yesterday and I had to force restart it. It had been showing me messages that my hard drive disk was full for a while and I was in the middle of transferring files to my external hard drive and I accidentally put a huge large file from my external hard drive into the trash on my laptop which makes me wonder if that means I added more GB to a computer that was already very full. Anyway, after freezing I restarted it and the desktop wouldn't load properly. The desktop picture was there, but folders on desktop did not appear, finder bar was missing and the dock was acting super slow and nothing worked when clicked on. Then the next few attempts were around the same result and eventually became stuck on the apple logo, spinning gear and a progress bar that was not loading at all.
Here's what I've tried so far:
Safe mode- nothing happens
Command + R - I am unsure how to work this since I can't seem to find an internet connection when it prompts for one. None of the internet connections have much signal and my own information doesn't seem to load since the gear spins to find the internet connection name and password I typed to load it but can't seem to find it. Perhaps I have the wrong internet information, but I don't think so.
I tried Command + S to use in single user mode and type in a command to help fix the drive, BUT, even though the black screen and white lettering mode did show up, it remained in a place where I was not allowed to type anything and the last thing written at the bottom of the screen was something about set up for bluetooth, I think. I tried this twice and both times it stopped in the same place and I could not type a command.
Disk Utility using installation dvd to verify and repair disk. Verify says disk needs repair and then repair has some red colored phrases: Invalid volume file count. (It should be 786374 instead of 786274) Incorrect number of thread records. And there was another problem listed but I do not remember it. Then, near the end of repairing it says: "Disk Utility stopped repairing Macintosh HD." It tells me it couldn't repair the disk and that I should back up as many of my files as possible, reformat the disk and restore backed up files.
That would be fine and dandy, but I have no idea how to back up my files and do all this. I have no idea how to exactly get the data off my hard drive. If someone does, please list a step by step guide for me on how to do so.
I have an external hard drive and I tried plugging in and selecting the hard drive and making a "New Image" to copy to the external hard drive destination, but it just stops a few seconds into it and tells me there is an input/output error. I tried read only, read/write only, compressed options for making a copy and all yield the same result.
In Disk Utility, I believe I have a partition -the Macintosh HD. I have listed on the left hand side: 320.07 GB Hitachi HTSS45.....etc. and below it in non-bolded, grey lettering it says "Macintosh HD."
The Hitachi, when clicked upon, shows the S.M.A.R.T. status as Verified and the Macintosh HD doesn't show much in details except for "Not mounted."
At one point, the Macintosh HD was in bold lettering and seemed to be mounted for a few minutes. When that happened, I was able to see the details reading: Mount Point: /Volumes/Macintosh HD, Capacity: 319.73 GB, Available: 11.92 GB, Used: 307.81 GB, etc.
I'm getting nervous to keep turning on and off the computer on force start and shut downs, especially since I have been reading up that the longer the computer is on, the more the hard drive is in use and the more chance for it to start deleting or overwriting my files. Is this true?
It's not mounted anymore since it was momentarily mounted. I just want to get my files off the disk and save them to my external hard drive. That is my main goal right now. What can I do?
Thank you in advance for your help!

If you want to preserve the data on the boot drive, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data, you can skip this step.
There are several ways to back up a Mac that is unable to fully boot. You need an external hard drive to hold the backup data.
1. Boot into Recovery (command-R at startup) or from a local Time Machine backup volume (option key at startup.) Launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
How to back up and restore your files
2. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
How to use and troubleshoot FireWire target disk mode
3. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

Installing a trial version of the Illustrator and InDesign App in Creative Cloud on my Mac is impossible. Keep getting 'Installation failed' notices. More information gives 0 fatal error(s), 0 error(s). Already repaired disk permissions in Disk Utility bu

Installing a trial version of the Illustrator and InDesign App in Creative Cloud on my Mac is impossible. Keep getting 'Installation failed' notices. More information gives 0 fatal error(s), 0 error(s). Already repaired disk permissions in Disk Utility but nothing seems to work. Exit code: 7.

Hi Maarton,
Please follow the link to resolve the issue: Errors "Exit Code: 6," "Exit Code: 7" | CS5, CS5.5
-Ankit

Cant repair Disk

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