Missing Thread Record and Invalid Extent entry when booting

Hi all,
When I boot up my PowerBook G4 it freezes. When I boot into single user mode and run fsck -fy I get the following messages:
** /dev/rdisk0s3
** Root file system
** Checking HFS Plus volume
** Checking Extents Overflow file.
** Checking Catalog file.
Missing thread record (id = 72)
Invalid extent entry
(4, 14531)
** Volume check failed.
I do not have Disk Warrior nor the Apple disks with me. Any help you can provide is greatly appreciated. Navigating my disk in single user mode seems to have all my directories etc.
Thanks!

I am trying to back up my data now. I only have my FAT32 formated iPod with me and I'm trying to mount it to backup my photos before I reinstall. Unfortunately I do not see my iPod popping up in /dev at all so I cannot even mount it.
It's a USB connection so I suspect that single user mode doesn't pick it up... Any advice on how to mount a filesystem from my iPod in single user mode is much appreciated.
Thanks.

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What now? I got repair failed "Keys out of order" and "Invalid extent entry"

What now? I tried to verify & then repair disk and I got "repair failed" "Keys out of order" and "Invalid extent entry"

You've booted from your OS installer disk, ran Repair Disk from Disk Utility? If so then you need a stronger disk repair utility like DiskWarrier to rebuild the directory.
BTW, update your profile information.

Disk Utility and fsck report 'missing thread records' and can't repair.

Hello,
What first made me realise there was a problem with my iMac was that when I tried to update a application it failed. I then manually download the .dmg of the update and tried replaced the app (Transmission 1.82 being that app in question). This failed, OS X claiming that it could not replace the older version (1.81). I then tried copying the file to the desktop where OS X claimed that there was already a copy of the application and so left a corrupted file on my desktop. This also happened when i attempted to move and copy a couple of pages documents and movie files around. I decided the best thing to do at this point was to reboot my computer; OS X decided it needed to install a couple of security updates at this point. This installation failed.
My iMac booted up, but only after a progress bar has appeared under the Apple logo and spinner and has done its thing (From what I've read this means that OS X is trying its best to resolve some sort of errors). This happens upon every boot.
This made me think that something must be going on with the file system of my Mac so I ran all the tests in Disk Utility. Permissions repair ran fine and fixed a few issues, but when I verified the disk this is what it reported:
"Verifying volume “Macintosh HD”
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Missing thread record (id = 2045563)
Missing thread record (id = 2096282)
Keys out of order
The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."
I booted up from the DVD and tried to repair; this failed. Next I tried using fsck in single user mode; this also failed. Upon rebooting again and waiting for the progress bar to fill I was able to move files around and update Transmission without issue. Disk Utility still reports the same error.
If I boot into Windows Vista everything works perfectly; as of yet I haven't got around to installing the new Boot Camp update for Windows 7 support incase that changes anything. When running the diagnostic tool on the Windows Vista DVD it reports that everything is fine for Windows.
I really am at a loss for what to do next. All my data is backed up by Time Machine onto a Time Capsule as well as manually onto a FW external. I also made a clone of the Windows partition using the free app Winclone. Does anyone know anything I can do to fix this problem?
Thanks so much,
Sam.

I have been experiencing exactly the same problem here with my MacPro. Apple replaced the hard disk because it was reporting bad sectors. However even with the replacement hard disk I'm experiencing the "missing thread" issue again. I'm guessing its either a software issue that keeps recurring or a fundamental hardware issue. Is the disk controller part of the hard disk or the motherboard? I've never had hard disk problems like this before.
Here's my Disk Utility report from earlier today:
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Missing thread record (id = 1067066)
Missing thread record (id = 1111528)
Missing thread record (id = 1196845)
Missing thread record (id = 1200621)
Missing thread record (id = 1260154)
Missing thread record (id = 1277166)
Missing thread record (id = 1285010)
Missing thread record (id = 1297257)
Missing thread record (id = 1316679)
Missing thread record (id = 1437800)
Incorrect number of thread records
Checking multi-linked files.
Checking catalog hierarchy.
Invalid volume directory count
(It should be 155085 instead of 155095)
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
Repairing volume.
Missing directory record (id = 1437800)
Missing directory record (id = 1316679)
Missing directory record (id = 1297257)
Missing directory record (id = 1285010)
Missing directory record (id = 1277166)
Missing directory record (id = 1260154)
Missing directory record (id = 1200621)
Missing directory record (id = 1196845)
Missing directory record (id = 1111528)
Missing directory record (id = 1067066)
Look for missing items in lost+found directory.
Rechecking volume.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
Invalid volume directory count
(It should be 155106 instead of 155096)
Repairing volume.
Rechecking volume.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
The volume MacHD was repaired successfully.

What is a missing thread record (id = 3339624) and what can I do about it?

I was trying to updat my IMac to snow leopard and got an error during the process. I restarted my computer on the HD that I was trying to update and I get the boot screen and then it turns off. I then got it to boot on the SL disk and it got me to the repair prompt and the DU. When I verify the HD I get missing thread record (id = 3339624) and It grays out the HD. After restarting and getting back to the DU I can see it again and all my files on it. I no longer care about updating I just want to be back to normal. I don't have any time machean backups and I am very worried. It makes it even worse being able to see my files but not be able to get to them.

That error message means that Disk Utility can't reconcile the catalog entry for a file and it's location on the hard drive. That could mean a problem with the file or a problem with the catalog.
Verifying the hard drive doesn't fix anything, it just reports it's status. You need to boot to either your Leopard or Snow Leopard DVD, bring up Disk Utility, and repair the hard drive. If Disk Utility gives a failure on exit message or tells you it can't repair the hard drive, then you'll need to use a program like Disk Warrior or TechTool Pro, with Disk Warrior being the program most people use. That should be able to fix the problem. Disk Warrior is available from http://www.alsoft.com/diskwarrior/
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Invalid Extent Entry error

I have an iBook 9.2.2 and am getting an error message "Problem: Invalid extent entry, 44165, 4075" when running Disk First Aid. It says Disk First Aid cannot repair this problem. Does anyone have any suggestions on how to repair this problem? THis is a laptop for special needs children.

Welcome to Apple discussions!
The directory on the Hard drive has been corrupted. The "index" of what files are where is out of whack, and there is no way to repair it that is completely risk-free. You will need to take one of two approaches:
1) use an Industrial strength Disk- or File- Repair Utility. Popular ones include alsoft Disk Warrior and Tech Tools (now supplied by Apple when you have an Applecare contract). DO NOT INSTALL these programs until the damage is completely fixed -- Get the CD version and boot from the CD, do the Repair, check again with Disk First Aid, THEN they can be installed, if you wish.
Norton Utilities for Mac has repeatedly failed Mac users by not keeping their software appropriately upgraded to match the Mac Operating System. Using the wrong version can wipe out your Hard Drive.
If you are working within a School System, the school's Tech Support should have a plan and the necessary Utilities and know-how to address these sorts of problems. When you have a large number of computers to look after, these problems come up regularly in Macs and PCs.
-OR-
2) Back up the files you can still read and re-initialize the Hard drive.
Message was edited by: Grant Bennet-Alder

Time machine restore: missing thread record

Hello everyone,
I recently upgraded from Lion to Mountain Lion. I did a clean install. I have been backing up with Time Machine to my Lacie Cloudbox NAS. My NAS requires authentication.
I am unable to restore my files. I have tried it during installation and with Migration Assistant. I can see my .sparsebundle through Finder and mount it (and see an inprogress with loads of folders inside of it). I am unable to copy the files directly to my desktop because of an permission warning.
From Windows I can see loads of files inside the bands-folder. They are all equal in size. I found a clue that maybe the most recent ones are corrupt, so I moved two days worth of them out from sparsebundle.
Disk utility says the drive needs to be repaired. I tried this, and got loads of errors. I there are so many of these that I have shortened the list below a lot. Please help me, all my valuable files are inside the .sparsebundle (510 gigs). I don't care about automation, I just want them out.
Verify and Repair volume “Time Machine Backups”
Checking file systemChecking Journaled HFS Plus volume.
Detected a case-sensitive volume.
Checking extents overflow file.
Checking catalog file.
Missing thread record (id = 381217)
Missing thread record (id = 383288)
Missing thread record (id = 383627)
Missing thread record (id = 384165)
Missing thread record (id = 384442)
Indirect node 380893 needs link count adjustment
(It should be 2 instead of 3)
Next ID in a hard link chain is incorrect (id = 1951259)
(It should be 0 instead of 1951258)
Indirect node 380895 needs link count adjustment
(It should be 2 instead of 3)
Next ID in a hard link chain is incorrect (id = 1951262)
(It should be 0 instead of 1951261)
Indirect node 380897 needs link count adjustment
(It should be 2 instead of 3)
Next ID in a hard link chain is incorrect (id = 1951265)
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Indirect node 411674 needs link count adjustment
(It should be 1 instead of 3)
Orphaned file hard link (id = 1286100)
Orphaned file hard link (id = 1286101)
Orphaned file hard link (id = 1286119)
Orphaned file hard link (id = 1286120)
Orphaned file hard link (id = 1286121)
The volume Time Machine Backups could not be repaired.
Volume repair complete.Updating boot support partitions for the volume as required.
Error: 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.

The backup disk image is corrupt. You might be able to repair it by holding down the option key and selecting Verify Backups from the Time Machine menu. But that may also result in a total loss of all backup data. Backing up to a third-party NAS is unsupported by Apple and unsafe. You should back up to a locally-attached storage device.

Error: The underlying task reported failure on exit / INVALID EXTENT ENTRY

In trying to verify my HD, I get this error message:
Verify and Repair disk “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid extent 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 tried Disk Utility (not from startup volume) with no luck. I've also run DiskWarrior several times and still get the same message... What am I missing? How do you repair an INVALID EXTENT ENTRY? Is my HD about to bite the dust?
Any help would be much appreciated!
iMac G5 Mac OS X (10.4.6) 1.8 Ghz / 768mb ram

1derfullymad,
Welcome to Apple Discussions.
I am surprised that Diskwarrior was not able to take care of this problem, but Handling "overlapped extent allocation" errors reported by Disk Utility or fsck may provide the ultimate solution for you.
Make sure to use Disk Utility to check the S.M.A.R.T. status of your drive. If you get a good report the drive should be OK.
This problem is a characteristic of a full Hard Drive. If that describes your Hard Drive, Freeing space on your Mac OS X startup disk, by Dr. Smoke may prove to be helpful.
;~)

'fsck -fy' yields "invalid extent entry, invalid node structure"

Hello all,
System seems unstable. Many different apps, including System Preferences, crash on launch.
In Single-User mode (Command-S at boot), ran 'fsck -fy' (multiple times) and the receive the following errors that cannot be repaired:
Invalid extent entry
Invalid node structure
Volume check failed
What options do I have to fix this? No claims by Alsoft (or other disk-fixing utilities I know of) that DiskWarrior works on Intel-based Macs to resolve an issue such as this. Are there really no disk-fixing tools for Intel Macs?
Is the only option to format and reinstall and if so do I have to "zero all data"? And if I have to zero all data, how long will it take?
Thanks for any insight.
Cheers,
Derek
MacBook Pro Mac OS X (10.4.7)

Thanks again, iVmichael.
Thanks for your suggestion... So I did boot off of Install DVD and ran Disk Utility from there and here is what it reported:
Checking HFS Plus volume
Checking Extents Overflow file
Checking Catalog file
Invalid extent entry
Volume check failed
Error: The underlying task reported failure on exit
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I tried another suggestion I got from the EIMS-L list which was to use another Mac to repair the MBP in FireWire target disk mode. I did that and was able to run Disk Utility from my other Mac (1.33GHz PowerBook G4) but it reported same errors. On the other Mac I tried to run DiskWarrior 3.0.3 (latest) but it failed to "see" the MBP's disk even though it was mounted and Disk Utility saw it.
So I will probably reformat and reinstall everything!
Thanks for your suggestions...

Kernel Panic (Invalid extent entry)

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Hi guys and gals
Just wondering if anyone else came up with this problem:
My powermac G4 running OS 10.2 only starts up to a blue screen and nothing else. I ran Disc Utility first aid on it and it said it had an "invaild extent entry" which it fixed, but the problem is still there.
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Hi htmlneophytea,
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Symantec discontinues Mac Norton Utilities, SystemWorks
Norton Utilities, SystemWorks development halted
TMO Scoop - Symantec Confirms Norton Utilities & SystemWorks' Demise [Updated]
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Verify disk missing threads repair failed?

I am sorry I do not know where to post this. I have just repaired my permissions and verified my hard disk the the result was as below:
2010-01-19 09:56:10 +0900: Disk Utility started.
2010-01-19 09:56:15 +0900: Repairing permissions for “Mackintosh HD”
2010-01-19 09:59:36 +0900: Permissions differ on "usr/share/derby", should be drwxr-xr-x , they are lrwxr-xr-x .
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2010-01-19 10:00:52 +0900:
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2010-01-19 10:27:06 +0900: Starting verification tool:
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2010-01-19 10:27:07 +0900: Checking Journaled HFS Plus volume.
2010-01-19 10:27:07 +0900: Checking extents overflow file.
2010-01-19 10:27:59 +0900: Checking catalog file.
2010-01-19 10:27:59 +0900: Missing thread record (id = 623624)
2010-01-19 10:28:00 +0900: Missing thread record (id = 782860)
2010-01-19 10:28:00 +0900: Incorrect number of thread records
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2010-01-19 10:28:00 +0900: Invalid volume file count
2010-01-19 10:28:00 +0900: (It should be 416768 instead of 416775)
2010-01-19 10:28:00 +0900: Checking extended attributes file.
2010-01-19 10:28:00 +0900: Checking volume bitmap.
2010-01-19 10:28:00 +0900: Checking volume information.
2010-01-19 10:28:00 +0900: The volume Mackintosh HD was found corrupt and needs to be repaired.
2010-01-19 10:28:00 +0900: Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.2010-01-19 10:28:00 +0900:
2010-01-19 10:28:00 +0900: Disk Utility stopped verifying “Mackintosh HD”: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
2010-01-19 10:28:00 +0900:
What should I do. Is my hard drive about to fail?? Any comments would be much appreciated

kiwao wrote:
Thanks for your input. The volume has been repaired successfully. How did this happen.
I don't know.
Is it software related.
this is very hard to say. it could be software related but it could be hardware related too.
How can I stop it happening again.
you can't really. verify your hard drive periodically. if this keeps happening you'll need to reformat the drive. if it keeps happening after that it's likely hardware related and you should replace the drive.
This has never happened on any of my other macs. Not on the G4 ibook I am using now nor the imacs I have had!
Thanks again

Missing Thread Record and Invalid Extent entry when booting

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