Disk Utility Hard Drive Repair Shows Following Message

Hi all
I have a Lacie FW800 External HD that was mounting on my desktop though slow to access earlier this morning.
I shut down and checked all FW 800 connections [some of the five connected drives have been daisy chained - 3 from the rear port and 2 from the front port]. I checked all power supplys also.
I then turned my machine back on and the slow hard drive would not mount and continues to fail to mount. I then opened Disk Utility from the Applications>Utilities folder/s and tried the Verify Disk option which then suggested to Repair the Disk. Unfortunately I received the following message as opposed to a "disk repaired" message.
\BEGIN TRANSCRIPT/
Verify and Repair disk “disk3s1”
Checking HFS Plus volume.
Invalid node structure
Invalid B-tree node size
Invalid node structure
Invalid B-tree node size
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
\END TRANSCRIPT/
Does anyone have any ideas on what I can do to repair / reaccesss this HD. It is important that it continues to mount as it has current projects and important assets on board.
Please help asapc.
Thanks in advance.

Also, here is some information on data recovery if you think it would be worthwhile for you.
http://www.thexlab.com/faqs/datarecovery.html
Good luck,
Steve M.

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Disk Description : WD Elements 1023 Media                      Total Capacity : 500.11 GB (500,105,740,288 Bytes)
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Hello,
I have just experienced the same thing!
Although my external drive shows in Disk Utility, it does not show in Finder.
And the Verify/Repair buttons are also greyed out.
Also, although the drive is 2TB. DU shows it as having Total Capacity of only 4.14GB! (Which should be the Free Space).
I was wondering if you solved your problem, & if so, would you share your solution.
I´m afraid to Erase in case I lose all my Data on the drive.
Thanks in advance for your reply!

External Hard Drive Disk Utility Can't Repair the Disk

Hi,
I have a Seagate 1 TB Backup Plus Drive which was working perfectly fine until I plugged it into a USB hub. It detected it while in the hub and I was able to get files off of it, but when I ejected it from the hub and put it back into the USB slot on the computer it was not detected by finder. It shows up in the disk utility and I clicked verify and repair and it says:
Verify and Repair volume “Seagate Backup Plus Drive”
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.
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.
Is there any way to get this to work properly again? Or if not is there a way for me to recover my files on the external hard drive?
Thanks
I have a Macbook PRO late 2011 running OS X Mavericks.

Use a more powerful utility such as DiskWarrior, or a product such as those listed here.
(108710)

Internal hard drive/repair: SMART status; Disk Utility, Tech Tool & More

machine: 12" PowerBook 1.5 GHz PowerPC G4 (Aluminium) with 80GB internal HD
internal hard drive (original): Hitachi Travelstar 5K100 series HTS541080G9AT00
hard drive firmware: MB4AA5AJ
ATA version: 6
ATA standard: ATA/ATAPI-6 T13 1410D revision 3a
I have monitored the SMART status etc. of my internal drive with smartmontools for some time. Occasionally, I would see an error or a failed self-test but later testing always succeeded and things did not seem to be problematic.
At the beginning of this week, I started to see a lot of failed self-tests (though some still passed), a rising number of bad ("pending") sectors and reallocation attempts (though no reallocated sectors) and various other errors. The computer seemed to have trouble reading from the disk at times and Carbon Copy Cloner reported two I/O errors when cloning (a later clone succeeded). fsck showed errors although running fsck -fy repeatedly seemed to resolve them.
The Apple hardware tests initially reported an error (2STF/8/3:ATA-100 ata-6-Master) but I hadn't realised I should disconnect peripherals before running it so I did that and repeated the test which found no issues. I ran the extended test a total of three times with no errors.
As I continued to have problems, I booted from my clone and had Disk Utility wipe the drive by writing zeros to it. (I thought trying to get it to write everywhere would either finish the drive off or force it to reallocate the bad blocks. As I understand it, in normal use, the drive won't reallocate the blocks unless it can recover the data in the hopes of reading it at a later time.)
I then continued monitoring the disk using smartmontools. At this point, short self-tests succeed but extended self-tests "disappear". They don't fail, they simply vanish. They begin and smartctl shows the test in progress but then no error or result is logged - it is as if the test was never run. The first time I did this, I got an error saying the SMART attributes could not be read but subsequent tests do not trigger even an error. Short self-tests continue to pass.
There are now (according to SMART) zero bad ("pending") sectors but zero reallocated sectors, which seems odd. The raw read error rate fluctuates (zero one minute, many thousands a while later) although I am not sure it did not do this before.
Disk Utility claims the disk does not support SMART status even though smartctl clearly shows it does. Disk Utility claims the volume is "OK".
I ran Tech Tool Deluxe 3.04 from CD and 3.1.1 from my clone. In both cases, I ran all available tests on the drive. No problems were found.
I am seeing some problems even while booted from my clone - yesterday, the system froze completely and I had to force a shut-down by switching off the power (fsck then found a minor error but repaired it). Just before this happened, I was unable to mount a disk image and was trying to rectify the situation when the system froze. It is possible that the errors fsck corrected were implicated in the freeze, rather than caused by it, since Disk Utility found and repaired similar errors for the other two clones I have (on different partitions of my external drive - yes, I know this is sub-optimal).
Here is some current output from smartmontools:
---output: smartctl -q noserial -a disk0---
smartctl version 5.38 [powerpc-apple-darwin8.11.0] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Model Family: Hitachi Travelstar 5K100 series
Device Model: Hitachi HTS541080G9AT00
Firmware Version: MB4AA5AJ
User Capacity: 80,026,361,856 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 3a
Local Time is: Sat Jul 3 20:28:52 2010 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 645) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 55) minutes.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 RawRead_ErrorRate 0x000b 100 100 062 Pre-fail Always - 0
2 Throughput_Performance 0x0005 100 100 040 Pre-fail Offline - 0
3 SpinUpTime 0x0007 142 142 033 Pre-fail Always - 2
4 StartStopCount 0x0012 097 097 000 Old_age Always - 5793
5 ReallocatedSectorCt 0x0033 100 100 005 Pre-fail Always - 0
7 SeekErrorRate 0x000b 100 100 067 Pre-fail Always - 0
8 SeekTimePerformance 0x0005 100 100 040 Pre-fail Offline - 0
9 PowerOnHours 0x0012 039 039 000 Old_age Always - 26720
10 SpinRetryCount 0x0013 100 100 060 Pre-fail Always - 0
12 PowerCycleCount 0x0032 098 098 000 Old_age Always - 4168
191 G-SenseErrorRate 0x000a 100 100 000 Old_age Always - 0
192 Power-OffRetractCount 0x0032 100 100 000 Old_age Always - 201877487644
193 LoadCycleCount 0x0012 001 001 000 Old_age Always - 2209599
194 Temperature_Celsius 0x0002 141 141 000 Old_age Always - 39 (Lifetime Min/Max 16/46)
196 ReallocatedEventCount 0x0032 100 100 000 Old_age Always - 194
197 CurrentPendingSector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMACRC_ErrorCount 0x000a 200 200 000 Old_age Always - 0
SMART Error Log Version: 1
ATA Error Count: 2138 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
PoweredUpTime is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 2138 occurred at disk power-on lifetime: 26716 hours (1113 days + 4 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
10 51 00 09 4f c2 a0 Error: IDNF
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
b0 d6 01 09 4f c2 a0 00 08:30:04.500 SMART WRITE LOG
b0 d5 01 09 4f c2 a0 00 08:30:04.300 SMART READ LOG
b0 d1 00 00 4f c2 a0 00 08:30:04.000 SMART READ ATTRIBUTE THRESHOLDS [OBS-4]
b0 d0 00 00 4f c2 a0 00 08:30:04.000 SMART READ DATA
b0 da 00 00 4f c2 a0 00 08:30:04.000 SMART RETURN STATUS
Error 2137 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 28 18 95 98 e4 Error: UNC 40 sectors at LBA = 0x04989518 = 77108504
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:37.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:30.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
Error 2136 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 21 1f 95 98 e4 Error: UNC 33 sectors at LBA = 0x0498951f = 77108511
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:30.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
Error 2135 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 22 1e 95 98 e4 Error: UNC 34 sectors at LBA = 0x0498951e = 77108510
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
25 00 80 40 93 98 e0 00 1d+01:30:13.500 READ DMA EXT
Error 2134 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 28 18 95 98 e4 Error: UNC 40 sectors at LBA = 0x04989518 = 77108504
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
25 00 80 40 93 98 e0 00 1d+01:30:13.500 READ DMA EXT
25 00 80 c0 92 98 e0 00 1d+01:30:12.100 READ DMA EXT
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBAof_firsterror
# 1 Short offline Completed without error 00% 26717 -
# 2 Short offline Completed without error 00% 26717 -
# 3 Short offline Completed without error 00% 26717 -
# 4 Short offline Completed without error 00% 26717 -
# 5 Short offline Completed without error 00% 26716 -
# 6 Short offline Completed without error 00% 26715 -
# 7 Short offline Completed without error 00% 26714 -
# 8 Short offline Completed without error 00% 26697 -
# 9 Extended offline Completed: read failure 10% 26692 75071682
#10 Short offline Completed without error 00% 26687 -
#11 Extended offline Completed: read failure 10% 26676 77108511
#12 Short offline Completed: read failure 40% 26663 296917
#13 Short offline Completed without error 00% 26657 -
#14 Short offline Completed: read failure 10% 26646 296918
#15 Short offline Completed: read failure 70% 26645 296905
#16 Short offline Completed: read failure 10% 26644 296910
#17 Short offline Completed: read failure 10% 26644 296910
#18 Short offline Completed: read failure 40% 26643 296916
#19 Short offline Completed: read failure 20% 26643 296909
#20 Extended offline Completed without error 00% 26620 -
#21 Short offline Completed without error 00% 26618 -
Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENTTESTSTATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
---end output---
Self-tests 1-8 were all run after I erased the disk. The others were run before I did so. Not listed are the extended self-tests I've started since erasing which, as I say, have simply disappeared.
The checksum error regarding the log is normal for this disk. At least, I've got that error ever since I started using smartmontools for monitoring so I assume it is normal. (I installed this version of the software in about April 2008 and have used it since.) Also, starting offline testing has never succeeded on this disk (I think I checked into this at the time but can't quite remember - this is not new, anyway).
Questions
how should I interpret all this? (Why does Disk Utility say SMART is not supported while smartctl clearly shows it is at the same time? Why do the extended tests simply vanish? Is the drive definitely dying?) I do not want to replace the disk unless I absolutely have to because I understand that replacing disks in 12" PBs is no small matter and cost is an issue. I do not want to replace the machine unless I have to because cost is an issue and, also, I really like this computer and have no idea what I would want in its place, even if expense were no obstacle.
if it isn't clear whether the drive is dying or not, is there some further strategy I can use to establish this?
if the drive is dying, is a machine of this age worth repairing and, if it is, under what circumstances is it worth doing so? For example, it might be worth doing if you can do the job yourself, but that might be quite impractical for non-expert (not to mention, inexpert) users.
if there is a hardware problem (which I obviously think is very, very probable at this point), is it definitely a dying hard drive? (I've seen people write ominous things about disk controllers etc. which I gather are more serious - or less repairable - than a "mere" dying disk.)
what questions should I be asking you and what are the answers to those questions?!
Many thanks for your patience in reading this far.
- cfr

The 12" PB internals are a bit more complex, for PB's. If you don't want to replace the hard drive yourself or pay someone to install it, you could always get an external firewire hard drive, and use it to boot from and for general usage. Would have to be firewire, since the PB won't book from a USB device. One example of what you could get is a 160GB external hard drive: http://eshop.macsales.com/item/Other%20World%20Computing/MS4U5160GB8/ . All the choices with that case are listed here: http://eshop.macsales.com/shop/firewire/on-the-go
Have you called any Apple Authorized Service Providers to see what they would charge to install a drive for you? Whether you bought it or they supplied it? You can find a local one in the US at http://www.apple.com/buy/locator/service/

Disk utility can't repair a partition on external hard drive

I have a 1TB Western Digital external FW drive that's only a couple years old (2 or 3, probably). I have it split into partitions, one of which I'm using for Time Machine. The non-Time Machine partition checked out fine with DIsk Utility, but when I ran Disk Utility on the Time Machine partition, I received this message:
Disk Utility stopped reparing "Time Machine." 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.
Does this mean the drive itself is failing? I erased the Time Machine partition and recreated it through Disk Utility, and then I verified it. Everything checked out okay, but I want to make sure, especially since I'm hosting my iTunes music in the other partition (it's backed up to a 2nd external drive, so if the drive does die, at least I don't lose everything).
Before this problem happened, both partitions dropped off the Finder and the light on the drive went off. I unplugged the drive and plugged it back in again a couple times, but nothing happened. Finally, the light went back on after plugging it back in for the 3rd or 4th time, but I'm wondering if the drive could be going bad, which would surprise me since it isn't very old.

Brad Cook wrote:
Disk Utility stopped reparing "Time Machine." 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.
Does this mean the drive itself is failing?
Possibly, but not necessarily. The File System on the disk was so badly corrupted that Disk Utility couldn't fix it. That might indicate a problem with the drive. It's not unusual for consumer-quality (ie, inexpensive) drives to fail after 2-3 years, although many will run for several years. It's a bit of a crapshoot.
Before this problem happened, both partitions dropped off the Finder and the light on the drive went off.
Whatever caused that is another good possibility -- if a drive is improperly disconnected, OSX can't "close it out" properly, and that can cause damage to the file system. Sometimes Disk Utility can fix it, sometimes it can't. And sometimes heavy-duty 3rd-party disk repair apps like DiskWarrior can fix things Disk Utility can't.
A power dip or spike could have caused it, or an overheated electronic component, etc. If it has it's own power supply, be sure it's on a good (ie, not cheap) surge protector or U.P.S. system.
Otherwise, keep an eye on it. If you don't have "secondary" backups, this would be an excellent time to get another drive for that purpose. See #27 in Time Machine - Frequently Asked Questions for some suggestions.
Bottom line: personally, I'd not trust my only backups to that drive.
(But then, I'd never trust my backups to any single drive, no matter how new or high-quality.)

Macbook pro won't boot and when I tried to back up the hard drive I got "disk utility can't repair this disk backup as many of your files as possible"

My macbook pro froze and initially would not even recognize the power chord. Now it charges, but will not load up. I opened in in disk utility to try and back it up so that I could take it to apple to have it fixed but I got the message that said "disk utility can't repair this disk backup as many of your files as possible". How do I back up the files???

Nichelle215,
you can try the method described on this Apple page, in the “Instructions for backing up to an external hard disk via Disk Utility” section. (You can skip step 6, since you already know that your disk is irreparable.) Note, however, that this method is not guaranteed to work. Once you get your disk straightened out, you might consider purchasing an external hard disk for use as a Time Machine backup destination, so that a similar problem in the future won’t wipe out the only copy of your files.

After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely

After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely." What do I do now? This is an iMac and I'm running 10.6.8.

Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it. See below for how to clone a drive.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
You may be able to backup your data if you have an erased external drive you can use. Before you do the above but after you have opened Disk Utility you can try to clone your drive:
Clone using Restore Option of Disk Utility
1. Open Disk Utility.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Select the destination volume from the left side list and drag
       it to the Destination entry field.
5. Select the source volume from the left side list and drag it to
      the Source entry field.
6. Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
Now this will only work if the drive is accessible and can be cloned by Disk Utility. Otherwise, you would need to access your drive from another Mac that you can connect via Firewire - Target Disk Mode.

HT203176 i have a slow macbook, i ran live disk utilities and said I need to repair disk from a cd. did that, I got volume repaired from the external disk. when I reboot from hdd, then run disk utility, I get the same error message i did b4 repair

i have a slow macbook, i ran live disk utilities (from hard drive), turned out I needed to repair disk from a installation disk. Did that, I got the volume (Hard drive) repaired from the installation disk disk. To this point, great!
When I reboot from hdd, then run disk utility, I get the same error message i did b4 repair. I went thru two rounds of this.....
Can anyone help? thanks

Sorry guys, I don't see how to reply to you so I use reply to "me" basically.
So the error I get is "volume header needs minor repair" and then you need to perform repair from the installation disk message.
I did repair not verify from the disk twice. Every time ending in the "the volume had ha been successfully repaired". Then I reboot from the internal disk. Run disk utilities from it, do verify and get the same error message I got before repair. I hope this can shed some light fr you guys. Sorry I didn't include details in the original
MEssage.

I have run disk utility- the drive is corrupted- I get the error message restart your computer holing down the Cmd

I have now tried every variant of key compbinations but I still get the grey lock icon with a box which won't accept my password.
When re-running disc utility all I get is the same error message

I ran the Disk Utility and got a message that it can't repair the disk. This happened after I did a restart Command and R. After trying the repair cycle I got a message "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" I found myself stuck because I couldn't shut down the Disk Utility. Out of frustration and patience I turned the I-Mac off by pressing the start key, thinking it would restart my computer. I feel like a fool now! I started the computer up and all I got was a grey screen with a flashing file with a question mark inside the file icon which is blinking off and on. I tried attaching my Seagate hard drive with no luck. What can I do? Thank You!

Can I fix a disk with this message?-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.

Can I fix a disk with this message?
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.

Some problems can indeed be fixed this way. But working from Recovery_HD or Disk Warrior DVDs and working in the restricted environment those provide can be difficult. You can literally spend days working on this problem (while your regular work is unavailable) only to discover the old drive is unsalvageable.
There is no way to know up front whether you are facing a major Hardware failure or a minor software glitch, or something in between. Often you are forced to work from the drive you no longer trust. I continue to recommend you do this work from a different, fully functioning Mac OS X booted from a different drive.
If you have had the foresight to (as The hatter often recommends) clone your virgin install onto another drive for use in such situations, you will be able to recover from such problems in record time. If not, my previous recommendations stands:
Buy a new Drive. Or two. Install Mac OS X from scratch on a new drive, and get your Mac running again. Later, you can use the full power of Mac OS X to attempt to rescue your data, if needed. Then Zero the old drive, to see if it can hold data again reliably.
If the old drive eventually provides some needed data, and is salvageable, Merry Christmas.

USB Hard Drive not showing up in AirPort Utility

I have been using this AirPort Extreme for over two years now and it's been working fine. I finally decided to buy a self-powered USB hard drive so I can share it over the network. However, after I unpacked the hard drive, connected it to my Mac and reformatted it to HFS+ Journaled and GUID. I plugged the hard drive into my AirPort Extreme's USB port and waited. I looked in my AirPort Utility and saw nothing in the disk list.
I spent hours searching online and discovered that I am not alone in this problem, although solutions are rare. I did try one solution where I hooked up the USB hard drive to a powered USB hub and the hub into AirPort Extreme. It actually worked once and after I rebooted everything, even though the hard drive still showed up in the disk list, no computers can connect to it. Although if I connect the hard drive directly to a Mac, it would still work perfectly.
Having a USB hub is not a long term solution not that it's working anymore anyway. I would appreciate any suggestions you may have, thanks!

Weilishu wrote:
Thanks for the response. However, I'm not sure what you mean.
So far my experience is far from "Just connect the external hard drive to the USB port on the back of your AirPort Extreme and — voilà".
did you read the support article Daddy linked ? it clearly says
JGG

Start up disk full - hard drive shows all as "other" ???

Hi, I have a macbookair 120GB and I have been receiving the startup disk is full warning. When I first looked at my hard drive it showed 40GB in photos, 40GB in other and the rest in apps audio etc. Today when I looked at it I had 120GB in "other". Last night I deleted a bunch of photos in my dropbox which freed up 6GB which is now gone. What is going on???? I got an external harddrive to put my pictures on that should be arriving today. (Never done it before hopefully it's pretty instinctual). Any advice? I don't have any big programs or movies or anything.

About "Other"
For more on this and very helpful tips:
http://pondini.org/OSX/DiskSpace.html
http://pondini.org/OSX/DiskSpace.html http://pondini.org/OSX/LionStorage.html
1. Empty Trash.
    http://support.apple.com/kb/PH10677
2. Repair Disk
    Steps 1 through 7
    http://support.apple.com/kb/PH5836
3. Disk space / Time Machine ?/ Local Snapshots
   http://support.apple.com/kb/ht4878
4. Re-index Macintosh HD
   System Preferences > Spotlight > Privacy
   http://support.apple.com/kb/ht2409

TS2176 my mac disk utility option is not showing drive where to install

my mac disk utility option is not showing drive where to install

Sadly, it sounds like the drive has died if it isn't showing there, but on the off chance it's just really messed up...
"Try Disk Utility
1. Insert the Mac OS X Install disc, 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 at top of the screen. (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 First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214

Disk Utility - Won't Repair Flash/Thumb Drive

So my Mac froze for some reason, while my Kingston thumb/flash drive was in. I tried to eject it, but I could only force eject (which it said may cause issues). After that, whenever I put the thumb drive in, it said something like the drive won't work and I had to copy the files to my desktop. When I go into disk utility and click repair disk, it says this: "Disk Utility stopped repairing “UNTITLED 1”: 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."
I can't erase the thumbdrive, because it says I need a source, which I don't know what that means.
Can anybody help? The files are useless now as I have transferred them to a CD, so I'm fine with erasing the whole thing. And yes, I know I can get a new on at any store for cheap, but I'd like to know if this can be repaired. Thanks.

You haven't mentioned how the thumb drive was formatted to begin with; is it GUID partition map and Mac OS Extended (Journalled), or is it FAT 32 with MBR partition map?
If it's the latter, DU can't repair it, but should be able to format it. However, the forced ejection may have damaged the file system to prevent that.
If it's FAT32, re-format it on a PC and try again on the Mac.
If it's Mac formatted, you could try erasing and reformatting on another Mac (or as Hackintosh says, from the DVD), but if that doesn't work, try the PC route; reformat to FAT32 on a PC (if the PC will recognise it - thay don't always), then go back to the Mac, repartition and format.
If that fails, it's recycling fodder.

Disk Utility Hard Drive Repair Shows Following Message

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