Disk Repair and Corrupt Hard Drive

I just replaced the hard drive on my iMac because the computer kept hanging and occasionally shutting down. I've run Disk Utility many times over many months on the old hard drive and the message I received is that the hard drive was corrupt and needed to be repaired; DU reported both an invalid file count and an invalid directory count. I made a clone of the old drive before replacing, and low and behold I still receive the same message when I run DU on the new drive. I reinstalled Snow Leopard and added all upates to 10.6.8 via Software Update before cloning the drive. Is the new drive defective? Do I need to reinstall the OS on the new drive? Other ideas? Thanks.
iMac 5,1
OS 10.6.8
2.16 Intel Core 2 Duo
3G SDRAM

You can try this instead:
Reinstall OS X without erasing the drive
Do the following:
1. 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.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.
Most likely you had the same problem because it was associated with your existing Home folder. Best to avoid cloning your old system.

Similar Messages

How do i repair a corrupt hard drive and i lost my install disk

My Macbook started acting up....when rebooting there was a flashing file folder with a ? inside. Finally got to reboot, ran Disk Verfiy and my hard drive is corrupt. We just moved and I have no install disc. How do I repair my hard drive?

With no install drive and a potentially flaky boot drive there is no guarantee of success. Here's some schemes you can try.
1. Boot in safe mode. I believe it does a fsck (file system check) of the boot drive.
2. Related to 1.
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
3. Ggt yourself an external drive and hope you can clone the boot drive to it using Carbon Copy Cloner (or Super Duper). Then boot from the external and try to repair the original boot drive.
Of course I shouldn't have to say that you should always have a backup (backups) of your drives anyhow.
4. Contact apple to try to replace your installer dvds.

Disk repair and startup\dvd drive issues

i'm running 10.6 on a 2ghz macpro - disk repair has found problems on the startup disk. i know i need to boot from another disc to repair the system drive, but i'm having problems doing so.
the dvd drive won't startup from either my original installation discs (tiger) nor my snow leopard dvd. restarting and pressing 'C' does nothing, then the tray opens and the mac starts from my HD.
I have a superduper backup on an internal drive, i can start from this but disk utility won't allow the repair of the main HD, saying it can't unmount it. I'm sure i've done yhis before by creating a temporary admin account and running dick utility from there, but even this isn't working this time.

First, under no circumstances should you try to use a Tiger install disk to repair problems on a Snow Leopard system. You need to use a Snow Leopard disk.
Second, make sure that you are using the disk that you used to install SL on the Mac Pro. It must be a disk that has a system newer or equal to the one that shipped with your machine. If your machine originally shipped with Tiger, but is currently running Snow Leopard, then any retail Snow Leopard disk should be able to boot the machine.
If the machine won't boot from a legit disk that it should be able to boot from, then either the disk itself is damaged or you have a hardware problem. Or, very rarely (I've only ever heard one first-hand report of such a thing), you could have such a severely-corrupted hard drive that it actually prevents you from booting from anything.
Are you able to load DVDs in your machine at all? What happens if you put in the SL disk when the machine is booted from another drive? Are you able to boot into [Apple Hardware Test|http://support.apple.com/kb/HT1509]? If so, run the extended tests.
I'm not sure why you'd be unable to repair the drive when booted from a backup on a different internal drive. Does that backup drive have the same version of the OS? Are you running Disk Utility from the backup drive or from the drive you're trying to repair?
You could try booting into single-user mode (hold down command-s at startup), then type "fsck -fy" at the command line. When fsck is done, run it again. Continue until either no problems are found or until you're reasonably sure it'll never manage to fix them all.
You could also try getting a copy of [DiskWarrior|http://www.alsoft.com/DiskWarrior/index.html] or [TechTool Pro|http://www.micromat.com>, which can fix some things that Disk Utility can't.

Disk Utility and 320GB hard drive

I just installed a WD Scorpio 320GB hard drive in my first-generation MacBook. Everything works fine in normal use.
When I go to Disk Utility, however -- using the new internal HD as my startup disk -- the "Repair Disk" button is grayed out. The other three buttons are ok. "Verify Disk" shows no errors, and I can successfully run "Repair Disk" when I start up from a Leopard DVD. The "S.M.A.R.T." status check for the disk is OK.
My question: Is the grayed out button a matter of Disk Utility not being designed (yet) for 320GB disks on a MacBook? -- and I shouldn't worry? Or is the grayed out button a sign that something is wrong that I should be alert to?

You cannot repair the drive that booted the computer so assuming you didn't boot your computer with the installation DVD, this is normal.

Mac Mini has crashed - Disk Warrior and External Hard Drive Question.

I have Mac Mini that has crashed. I purchased Disk Warrior and was able to boot from the CD. Disk Warrior allowed me to see my files again but there is no way I can move them back onto my hard drive. I cannot grab them. Before I go into specifics....If I purchase an external hard drive and try to hook it up to my Mac Mini, will I be able move these files to this new external hard drive? Is this a possibility?
Or will my new external hard drive need to go through a set up phase - which might be impossible since hard drive I'm trying to take the files from is technically dead?
Sorry - I'm a novice at these things.

Hello, no apologies needed for being a novice, great you asked!
YES, depends where you buy the Drive, it may need Formatting first to Mac OS Extended...
How to format your disks...
http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
(To Install OSX on an IntelMac the Drive it needs the GUID Partitioning scheme mentioned at the bottom.)
Thanks to Pondini, Formatting, Partitioning, Verifying, and Repairing Disks...
http://Pondini.org/OSX/DU.html
These generally come Mac Ready, & get Firewire if you have a Firewire port, much faster...
http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATA_FW800_FW400_USB
Then in DiskWarrior, hold Option or alt key when selecting Internal to repair, that will do the best job of Scavenging the directory & provide a whole new Drive icon to copy or clone your info over to the external drive.

Disk repair for external hard drive

Hi, I gave my son an external hard drive to back up his school work, besides the normal backups of on the Time Capsule. So how he managed to hget the external hard dirve disappear from the screen while there is no back up left on the TC.
I have tried disk utility an number of time on several computers to get the External hard drive working. No luck there. I have tried restore in disk utility, but I cannot get the source and destination righty for a reason.
I have read an advice of Francine Schwieder dating back to 2007 where she advised to run terminator, this is the result I get while the xternal hard drive was connected to my Imac.
Last login: Sun Oct 9 22:14:37 on ttys000
imac-chf-baak:~ charles2008$
Last login: Fri Dec 7 20:58:20 on console
iMac:~ charles2008$
iMac:~ charles2008$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            999.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *1.0 TB     disk1
   1:                  Apple_HFS lucas hard drive        1.0 TB     disk1s1
iMac:~ charles2008$
Last login: Fri Dec 7 21:19:20 on ttys000
iMac:~ charles2008$
With my limited knowledge, was a partition placed on this external hard drive ? I cannot see or acces the external hard drive.
Is there anyone who can help me with this ?
Hope to hear from you.
Charles
Francine Schwieder Southern Cal

If you wan to give Data Rescue 3 a spin (I'm testing it out now for the first time) you can get it - and a number of other apps - for $50 from MacUpdate's December Bundle.
Because I have redundant backups, I've never used either DiskWarrior or Data Rescue 3 - but I wanted to try it so that I will be able to know how well it works (or doesn't).
Clinton

Unable to delete a disk image and reclaim hard drive space.

I created a disk image on which to store some stuff, and I now want to get rid of the disk image (which is 115 gigs of storage) and reclaim the hard drive space. I'm running Mac OS X 10.8.3. I have been unable to delete it through disk utility. I can only unmount it or mount it, but the storage space remains with it. I can't get rid of it through the downloads folder either, but if I find it in "volumes" via spotlight, and try to put it in the trash, it tells me "ENN.dmg cannot be thrown away because it can't be deleted." I tried using root user to delete the item and it told me I could not because it belongs to another person. My permissions are "read and write." I've searched all sorts of forums. Can anyone help? Thanks!

What error are you getting? Are you dragging and dropping on the trash can or right clicking and selecting "Move to Trash"?
Right click on the image file and select get info. What are the permissions set to.
Can you move or copy it to another folder or a external drive and if you can copy it can you delete the copy?

Emac and external hard drive

I have an emac and an Acomdata external hard drivve, that has bee working for the past year, no problems, but now the emac won't read the hard drive. I went into to disk utilities and the hard drive is there it's just not mounted, any ideas on how to remount it?
Chris

I had a similar problem, with my SmartDisk 80, have you tried journaling the drive; with the Disc Utility.
Google Search: journaling hard drive os/x
I have an emac and an Acomdata external hard drivve,
that has bee working for the past year, no problems,
but now the emac won't read the hard drive. I went
into to disk utilities and the hard drive is there
it's just not mounted, any ideas on how to remount
it?
Chris
eMac G4 ●1 Ghz ●1 Gb Ram ●Barracuda ST360015A 7200 60Gb Hard Drive Mac OS X (10.3.9) ●SmartDisk 7200 80Gb HD

Time Capsule Hard Drive - Disk Repair and NAT

When the "original item" can't be found on the time capsule hard drive, how does one go about connecting TC to a computer to run a disk utility to repair the TC hard drive? By the way, I was merrily rolling along with TC until this morning. Suddenly, there is a network issue and I can't connect to the internet because of the DHCP range and the hard drive can't be found. Talk about the double whammy!

"because of the DHCP range" means weak signal or interference

HT1386 I had to replace the corrupted hard drive in my macbook pro recently, and after I did so I did a full factory software & application restore. Now my iTunes says my iPhone 5 is no longer an authorized device. What should I do?

I had to replace the corrupted hard drive in my macbook pro recently, and after I did so I did a full factory software & application restore. I had to rebuild my iTunes Library by dragging my music folders in my iTunes Media into the iTunes Application and rebuild my playlists manually. After plugging my iPhone 5 into the computer USB, it immediately recognized my iPhone 5, showing: last backups, space left on my iPhone & all options available. I then checked the box to manually manage music etc. The problem I am now having is that when I actually try to drag music from my iTunes to my phone a prompt comes up saying that my iPhone is not an authorized device. What should I do? Any and all advice would be greatly appreciated!!

jrmetzger,
iOS runs on iPads and iPhones; OS X runs on Macs.
Given your situation, I’d highly recommended that you purchase a SATA-to-USB adapter, so that you can test both your old disk and your new disk externally, since it might be that the problem is due to a faulty internal SATA cable rather than due to faulty disks.

I have an imac 2009 the disk drive is damaged and I have lost the passwords I need to reset passwords I tried booting with a macosx disk from an external hard drive but did not read the drive how else can I reset password ?

I have an imac 2009 the disk drive is damaged and I have lost the passwords I need to reset passwords I tried booting with a macosx disk from an external hard drive but did not read the drive how else can I reset password ?
I have a 2012 mac book pro can I use that to connect with firewire and load osx that way? and how woudl I do that?
Thanks so much!

To what password are you referring? Do you mean your user account's admin password? Or do you mean the master password for File Vault or do you mean a Firmware Password?
For an admin password:
Forgot Your Account Password
For Snow Leopard and earlier
     Mac OS X 10.6- If you forget your administrator password
For Lion/Mountain Lion
    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.
     When the menubar appears select Terminal from the Utilities menu.
     Enter resetpassword at the prompt and press RETURN. Follow
     instructions in the dialog window that will appear.
     Or see Reset a Mac OS X 10.7 Lion Password and
     OS X Lion- Apple ID can be used to reset your user account password.
If you cannot do the above then try this:
1. Boot to Safe Mode by restarting and after the chime press and hold down the COMMAND-S keys until a black screen with white type appears.
2. At the prompt, type the following commands pressing return after each command line:
     /sbin/fsck -yf
     If you do not receive a "Filesystem OK" message then repeat this command until
     you do. If after seven tries you still do not receive a "Filesystem OK" message,
     then the system is corrupted and needs to be reinstalled.
     mount -uw /
     cd /private/var/db/netinfo
     mv local.nidb local.old
     rm ../.AppleSetupDone
     shutdown -r now
The second-to-last command above will cause OS X to think that the operating system is newly installed, and when the new owner starts up the computer it will send him/her to the startup wizard where he/she can start a new user without reinstalling.
This last method does not actually change a password. It simply removes the user accounts and lets you create an initial admin account as if the computer were new out of the box.
How to reset the OS X password without a startup CD:
Reboot into Single-user Mode. Enter the following and press RETURN after each command line
   1. Type fsck -fy
   2. Type mount -uw /
   3. Type passwd <username>
I have never tried this method myself.

My macbook pro hard drive went bad and i bought a new one and installed it. Now i have the old corrupted hard drive in my hand and i am looking to recover my files from it, any suggestions please? too bad i never backed them up.

My macbook pro hard drive went bad and i bought a new one and installed it. Now i have the old corrupted hard drive in my hand and i am looking to recover my files from it, any suggestions please? too bad i never backed them up.

After you have installed the OSX on the new HDD in your MBP, install the old HDD in an enclosure and connect it to your MBP via USB. Then try to drag and drop your data to the new HDD.
If this proves unsuccessful, you may look for data recovery software on the Internet. There will be free trails to see if it will work or not. If the trial suggests that it will work, then you will have to purchase the software.
The last resort is a professional data recovery service that will offer NO guarantees and charge a lot of money.
As you now can appreciate, backups eliminate such predicaments.
Ciao.

I use only two channels, have plenty of memory in my hard disk, and external hard drive, no effects, and still having problems with Garage band. Giving messages as you have too many live channels

I'm frustrated, I am doing everything you recommend, I use only two channels, have plenty of memory in my hard disk, and external hard drive, no effects, and still having problems with Garage band. Giving messages as you ave too many live channels, the disk is slow prepare...can you help?

Quote from: Richard on 15-November-07, 20:33:05
tornado2003,
What you need to do is boot into Safe Mode. Then delete the VGA Drivers.
After that boot normally and install the latest nVidia ForceWare Drivers
Take Care,
Richard
i guess you missed that:
Quote from: tornado2003 on 15-November-07, 17:26:52
ive tryed booting xp in safe mode but it just freezes after it loads up a couple of needed files .
ive even formatted my hard drive and tryed installing a fresh xp on it but it just keeps locking up when it gets to the "starting windows setup" .(this is just after it loads all the drivers from the xp cd)

I recently brought a HD PVR, i put in the disk to install the hard drive and it said " This program doesn't support DOS Mode! how do i get out of DOS Mode?? Please Help

I recently brought a HD PVR, i put in the disk to install the hard drive and it said " This program doesn't support DOS Mode! how do i get out of DOS Mode?? Please Help

What exactly are you trying to do? PVRs are for recording from TV not computers.
Either way, if it's complaining about DOS mode, it's Windows oriented software and not Mac compatible.

My laptop and external hard drive both failed and got corrupter.

My laptop and external hard drive both failed and got corrupter. I've lost my quick time pro 7 and all my music, I still have my Ipod with the music on, How can I get it back on to Itunes and quick time pro back on to my PC? Many thanks.

Since your current editing workflow is based around Virtual Copies there are no actual files containing the edit data. Therefore, you'll need to use the 'Import from another catalog' option ( see File menu).

Disk Repair and Corrupt Hard Drive

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