[kdad04]

Noticed I could not clear trash, so used DiskUtility to repair permissions. That hung about 1/2 through. Then tried VerifyDisk option which gave the "Volume needs Repair - Invalid Sibling Link" message. Then rebooted via my external HD and used its DiskUtil to try to repair the volumne on my Pb G4. Same error.
So now what? I have not noticed other programs failing, tho I have not done much checking.

Using 10.4.11 Have 80G HD with about 16G available. 1.33 PowerPC G4. 1G ram

[seanc]

Make sure you have a current backup. What is the SMART status of your hard drive?

The best things for repairing directory issues on OS X is Disk Warrior made by Alsoft. I would suggest you pick up a copy of that if you can.

If your hard drive checks out OK and you want to try out something that's free before buying Disk Warrior, you can boot into Single User mode and user fsck (file system check) to see if it fixes your problems.

1. Reboot the computer and hold down command (the apple key) + S, this will load a minimal version of OS X and take you to a command line.

2. Type 'fsck -fy' without the quotes and see if it can fix he error. Do it a few times until it doesn't give you the error any more. If this can't fix it, then your next option is Disk Warrior. If that can't fix it, then your last option would be an erase and install.

Good luck, remember to keep us posted.

[kdad04]

Well, the fsck gambit did not work. Repeats the Invalid Sibling Link (4,6196) ..

Smart status: Status Verified.

Ok, Disk Warrior is next ..