Invalid node structure help.

Discussion in 'macOS' started by Johnmacuser, Oct 13, 2012.

  1. Johnmacuser macrumors newbie

    Joined:
    Oct 13, 2012
    #1
    Hello everybody this is my first post here and I would be very happy if anybody would be willing to give me some advice. I have a late 2008 intel iMac and it has been acting strange lately and running very slow. I went out and bought some new ram and it was working great again for a few days. I had a power cut in my house last week and when I went to turn the iMac on it would not get passed the grey screen and would just restart it self after a few moments.I put in the os install cd and ran disk utility but I got a invalid node structure error and it would not repair it.

    I read up on this and saw from other peoples experiences a program called disk warrior could repair this so I went out and bought this program. The program managed to write a new directory but it could not replace the one on the harddrive as it says the harddrive has a disk malfunction and may have mechanical damage. Now my problem is over the last few months I have been slacking on making backups of my data and I am terrified I am going to lose all my stuff. I am also hesitant on spending anymore money on trying to fix the hard drive as I already spent a good bit of money on disk warrior.

    I need to know though if I go out and buy a new external harddrive and plug it into my iMac will disk warrior give me the option of moving the new directory onto the external harddrive. I know it is unlikely but is there any chance I can save my current hard drive by moving the directory onto a external one. I would then reformat my harddrive and reinstall os and move the directory over from the external.

    Any advice on this at all would really be appreciated I have been pulling my hair out with out my iMac the last while and I really do not know what to do next. also I am sorry for the spelling as I wrote this from my iPhone. Thank you for your time.
     
  2. ScoobyMcDoo macrumors 65816

    Joined:
    Nov 26, 2007
    Location:
    Austin, TX
    #2
    Since disk warrior is saying there is a possibility that there is possible mechanical failure, I would suggest you do not attempt to reload the os back on that possibly failing disk. Replace the internal hard disk and do a fresh install. Then get a usb hdd enclosure and put the failing HDD in the enclosure and attempt to recover data from the failed HDD.
     
  3. Johnmacuser thread starter macrumors newbie

    Joined:
    Oct 13, 2012
    #3
    Thanks for the advice and taking the time to write back. I am going to go ahead and do what you said. Is it difficult to put a hard drive into a late 2008 intel iMac would it just be the case of opening the back of it grounding my self then replacing the old one.
     

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