3 Replies Latest reply: May 14, 2010 7:58 PM by MGW
Zitchas Level 1 Level 1 (0 points)
Well, I need some help resolving this. The errors are in bold. I've tried running disk utility both from the startup drive and from the install disk. Neither one can fix these problems. As of yet, I have not seen any trace of corrupt or problematic files, although from experience when the drive starts getting errors, it's only a matter of time.

Here's a copy of what Disk Utility is reporting.

I'm running 10.4.11 with all updates, to the best of my knowledge.Not sure about firmware updates. Are there any firmware updates for the G5 imac? Can't seem to find a list for that, either. Anyway, this is on a G5 iMac.


Verifying volume “iMac”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
*Invalid extent entry*
*Incorrect block count for file InstallationCheck.strings*
*(It should be 0 instead of 1)*
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume bitmap.
*p needs minor repair",0)*
Checking volume information.
*Invalid volume free block count*
*(It should be 36255614 instead of 36255613)*
The volume iMac needs to be repaired.

Error: The underlying task reported failure on exit

1 HFS volume checked
Volume needs repair


Any help would be appreciated. That being said, I can't afford to a) buy expensive programs, or b) replace the hard drive.

That being said, I do have a small external USB drive, so I just cloned my whole user directory onto it (via Carbon Copy Cloner), so at least I won't lose much data.

iMac G5, Mac OS X (10.4.11), PPC Forever!
  • MGW Level 7 Level 7 (27,020 points)
    Is the list that you post is from your install disc? If you have Apple Care, have you tried using the TechToolsDeluxe disc that came with it? If not, DiskWarrior is $99 and a tool no Mac owner should be without. I know you said you don't want to spend money, but sometimes we have to have the proper tools.

    You might be abe to fix the problem by re-cloning to your internal from your external, that usually defragments the blocks and makes sure they are contiguous.


    Message was edited by: MGW
  • Zitchas Level 1 Level 1 (0 points)
    My post is the later portion of the results from the verify disk operation from the Disk Utility. When I try to run the repair function from the install disk, it interrupts/cancels the repair when it gets to those errors.

    I haven't tried the TechTools disk. I don't have applecare for this iMac, although I did for an older one. Would the same tech tools disk work?

    I'd love to get DiskWarrior, since it seems like a good program from what I've heard, but there isn't a budget for that right now.

    As far as cloning goes, I may be able to borrow another external drive big enough to clone my entire HD. If doing that is likely to help, I can probably manage that. That's going to be one long cloning operation...
  • MGW Level 7 Level 7 (27,020 points)
    The TechTools disc will probably not work if you have a later OS than your previous machine. Try the cloning route and please let me know how it went.