On Dec 4, 2005, at 21:25, AB wrote:



My 200GB backup firewire drive... which contains tons of music,digital camera photos, my system BU, many third party app installers and Apple updates,zillions of downloads, VPC 7 and current updated version of Windows XP, just to name a few things... appears to be royally screwed up.

My wife was having a problem finding some things on her iMac and I hooked my firewire drive to transfer some items. Her iMac had Classic mode open (a guy at her office did a Tiger upgrade/install from 10.2.8 which apparently leaves Classic mode intact)because she had just mistakenly re-installed Quicken 98 instead of the Quicken 2005 we had. (Don't ask! I don't know either).

Her system was taking forever to access my firewire drive partitions, a lot of spinning beachball action going on, eventually stopping. I finally tried to eject it by dragging to the trash and the spinning beachball continued non-stop. Tried force quit with no luck and eventually hit the power button. After a long wait the iMac appeared to shut down and I pulled the firewire cable and powered down the drive. I reconnected to my iBook 10.4.3 and powered the firewire drive back up to get the message - "Drive not readable." Taking deep breaths I opened Disk Utility to see the firewire drive partitions showed up now labelled Disk 1s09, 1s10, 1s11, 1s12 (huh?). I clicked 'Verify Disk' and it said "Invalid B tree node size," "The Volume needs to be repaired." But I also got a red system message, "The Underlying Task Reported Failure On Exit." Not feeling so good I tried 'Repair Disk' and got the same system message and Disk Utility reported:

Invalid B Tree Node Size

Volume Check Failed, 4 HFS+ volumes checked

4 Volumes Could Not Be Repaired Because Of An Error

Should I kiss years of personal archives and other stuff good-bye? ... or does anyone think there's hope for me to resurrect this drive? I don't own Disk Warrior for Tiger. Will that maybe save my @ss? I'm still trying to remain positive, given the other alternative of freaking out. Other than that it's been a good day beginning in nice warm Florida, then coming back to cold snowy Ohio, and attempting to help my wife with her Mac...Grrr.

AB


This definitely sounds like a job for Disk Warrior. Or maybe Drive Genius - I think it is priced nice at OWC.

I would recommend trying Disk Warrior first. You can have it do the repair, but not write to the disk, and have it mount the repaired volume in a Test mode. If you can mount it, I would STRONGLY recommend having a second FW drive ready and move all of the data off the damaged drive and check and see if it is in fact valid, before attempting to write to it. After you have all the data recovered to a separate drive, I would finish up by reformatting the damaged drive. I have had these type of b-tree problems crop up repeatedly, regardless of the software used to correct them.
--
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