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G5 dual 1,8Ghz WONT BOOT

3518 Views 10 Replies Latest reply: Jan 13, 2011 12:50 PM by digi-mech RSS
digi-mech Calculating status...
Currently Being Moderated
Nov 26, 2010 2:49 PM
When trying to boot, system chimes, screen lights, Apple symbol appears, then crash.

System will not boot from CD. In Single Mode, applejack cant fix disk errors. Tried fsck with no luck.

Replaced battery (system is 7 years old). Disconnected all external devices.

Not sure where to look next.

Thanks for your interest.
G5 dual 1.8 M9393LL/A, Mac OS X (10.4.11)
  • BDAqua Level 10 Level 10 (114,825 points)
    Currently Being Moderated
    Nov 26, 2010 3:10 PM (in response to digi-mech)
    Hi digi-mech, and a warm welcome to the forums!

    Try disconnecting the HD and see if it boots from the Install Disc for a test.
  • old comm guy Level 4 Level 4 (2,230 points)
    Currently Being Moderated
    Nov 26, 2010 8:31 PM (in response to BDAqua)
    BDAqua wrote:
    Hi digi-mech, and a warm welcome to the forums!

    Try disconnecting the HD and see if it boots from the Install Disc for a test.


    To elaborate, BD (and yours truly as well) is suspecting a serious boot-block or directory problem with the drive, though the fact that you can boot into single-user mode at least indicates that the system is finding and loading the basic Unix system.

    If that is the case, you might want to turn to DiskWarrior http://www.alsoft.com for help. DW is much more aggressive and capable and would be a logical choice under what appears to be going on.

    One thing you could do, though, is try a verbose boot with the hard drive by holding down the command-V combination until you see Unix terminal output coming up. If you see some "University of California" lines come up, then the BSD kernel is loading but MacOS is causing a problem, maybe.

    Another thing you can try is to boot into open firmware with cmd-opt-O-F keys held down until you get the white terminal screen, then enter the two following commands:

    reset-nvram
    reset-all

    which will cause a normal restart to occur. This clears up any non-default NVRAM entries, which may clear out an offending data value.
    TiBook G4 1GHz/ G5 2 GHz DP GF Ultra 6800, Mac OS X (10.4.11)
  • BDAqua Level 10 Level 10 (114,825 points)
    Currently Being Moderated
    Nov 26, 2010 8:47 PM (in response to old comm guy)
    Thanks for the elaboration OCG, I second the motion for DiskWarrior, it's worth it's weight in gold, BTW, digi-mech might enjoy these DiskWarrior reviews/recommendations...

    http://discussions.apple.com/thread.jspa?messageID=9645801&#9645801

    http://discussions.apple.com/thread.jspa?messageID=10541019#10541019

    http://discussions.apple.com/thread.jspa?messageID=11918925&#11918925
  • old comm guy Level 4 Level 4 (2,230 points)
    Currently Being Moderated
    Nov 27, 2010 9:08 AM (in response to BDAqua)
    BDAqua wrote:
    I second the motion for DiskWarrior, it's worth it's weight in gold...


    I disagree. Even at today's prices for Au, I think you are undervaluing DiskWarrior!

    Over the years, it has saved my kiester more times than I deserved.
    TiBook G4 1GHz/ G5 2 GHz DP GF Ultra 6800, Mac OS X (10.4.11)
  • old comm guy Level 4 Level 4 (2,230 points)
    Currently Being Moderated
    Nov 29, 2010 8:35 AM (in response to digi-mech)
    digi-mech wrote:
    I pulled out a 3.0.3 version of DiskWarrior and tried it.

    New directory built. Large list of problems identified and "fixed". But DW wont allow replacement of old directory with the new one.

    DW 4.2 on the way, but I am not optimistic.


    The new DW DVD should do the trick. I discovered that same issue before getting the upgrade DVD.
    TiBook G4 1GHz/ G5 2 GHz DP GF Ultra 6800, Mac OS X (10.4.11)
  • BDAqua Level 10 Level 10 (114,825 points)
    Currently Being Moderated
    Nov 29, 2010 10:19 AM (in response to digi-mech)
    I've only been using DW 4.1.1 for the last 3 years or so, it is improved over v3.0.3
  • BDAqua Level 10 Level 10 (114,825 points)
    Currently Being Moderated
    Nov 30, 2010 6:16 PM (in response to digi-mech)
    Great to hear!

    Reset OS X Password Without an OS X CD...

    http://theappleblog.com/2008/06/22/reset-os-x-password-without-an-os-x-cd/

    Admin Hack...

    http://www.hackmac.org/?q=node/4

    Starts up like the first time you buy a new Mac, but after filling in all that info again, you should have access to the computer and the other Users & files will still be there... give the new User a different name than an existing one.

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