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A DIY solution to an invalid node structure problem
Authored by: wader on Jul 09, '09 08:38:20AM

My system has been hit with the dreaded invalid node structure... this thread has been extremely useful to me in trying to get it up and running again, but I've run into some problems. Perhaps someone here can help me out a bit?

I made it to step 5 of the instructions here, and thats where the problems really started to appear. Migration Assistant simply wouldn't complete. It said there was an error in the dock.plist. So I ran fsck_hfs as recommended, which also gave me errors. This was a week ago now, but I remember it said NO WRITE. The drive in question actually does mount and boot up, but I can't save any files.

I finally broke down and tried diskwarrior. As I was beginning to suspect, there appears to be a hardware problem with the drive. Diskwarrior successfully rebuilt the directory and showed me a preview, but it couldn't replace the old one. So (via DW) I copied the rebuild to a clean partition on the firewire (I created one more than suggested here). I was hoping that I could then use migration assistant to transfer from this new, complete backup to 'Firewire 1', and then finish by cloning that to a new internal system drive. Unfortunately, although everything seems to be in place, I can't seem to get the system to recognize that rebuild as bootable, so Migration Assistant doesn't offer that partition as an option to transfer.

I think I just need to 'bless' the new backup rebuild. But I couldn't get that to work. I tried

sudo bless -folder '/System' -setOF

there were no errors, but it didn't seem to do anything.

Any suggestions? Thanks in advance...



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A DIY solution to an invalid node structure problem
Authored by: wader on Jul 11, '09 01:54:28PM

Please help! I'm still trying to work through this problem - I realized that bless needs double dashes for it to work. After blessing the backup, it didn't show up under startup disk. I rebooted with the option key, and the backup appeared there, but selecting it just gave me a white screen with a 'no system' symbol. So, that didn't work, or at least its not enough, I need to somehow make sure that all the invisible system files, links and permissions are restored to my backup. I wiped that diskwarrior backup, and now I'm recreating it, and will try again to make it a bootable backup. Any tips would be greatly appreciated.



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