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Need help

Discussion in 'General Mac Discussion' started by JzzTrump22, Aug 13, 2004.

  1. macrumors 65816

    #1
    How do you start in safe mode? I just installed a program and it prompted me to re-start my computer. So i did. Once my desktop came back up after about 20 seconds it came up with a black box that said i must restart my computer by holding the power button. I do it. It happens again and again. How do i fix this? Do i have to hold down some buttons on start up to get into safe mode or something so i can get rid of this damn program?
     
  2. jsw
    Moderator emeritus

    jsw

    #2
    Do you have any other accounts on the Mac that you could log in via? That would give you the easiest way to get access to the program (i.e., do you have root enabled, or another account with admin access)? Also, do you have another Mac with which you could log onto your current one while it's still showing the login screen?
     
  3. macrumors 68030

    Duff-Man

    #3
    Duff-Man says....what did you install? ...oh yeah!
     
  4. jsw
    Moderator emeritus

    jsw

    #4
    As you probably know, command-S on boot gets you into single-user mode. But that's a far cry from OS X or a terminal command line.
     
  5. macrumors 65816

    #5
    No it's the only mac i have and i only have 1 admin account. Is there any way i could start the computer in a different mode to get rid of this program?
    I installed NetBarrier. I didn't buy it, thats all i'll say.
     
  6. jsw
    Moderator emeritus

    jsw

    #6
    Can you boot from your install CD? (press 'C' while booting)
     
  7. macrumors 65816

    #7
    You mean put the restore cd in and then use that to boot? I don't know. I'm all the way on the other side of the house using my pc.
     
  8. jsw
    Moderator emeritus

    jsw

    #8
    Yes - at least one of the CD's that came with it is bootable.

    Also, holding 'shift' while logging in should disable startup items - I think. Not sure on that one.

    Edit: just verified the shift key thing. after entering your password, before clicking the login button, press 'shift' and keep it pressed during login. Most (but not all) startup items are not run.
     
  9. macrumors 65816

    #9
    Ok i'll give the booting with cd and the holding shift button a try. Be back in a few.
     
  10. macrumors 65816

    #10
    Ok none of that worked. Any other ideas?
     
  11. jsw
    Moderator emeritus

    jsw

    #11
    Were you able to boot from a CD? That should have worked.

    What did you install that's so insidious?
     
  12. macrumors 68030

    Duff-Man

    #12
    Duff-Man says....it has probably installed a .kext or something into system/library/extensions and that may be causing the kernel panic. You could start into single user mode and browse to there and have a look, and if you know what you are doing, delete if necessary....oh yeah!
     
  13. macrumors 65816

    #13
    I installed NetBarrier. I got it off of Aquisition, it installed fine. I don't have enough time to do anything when i start my computer, it tells me i have to restart after 20 seconds.
     
  14. emw
    macrumors G4

    emw

    #14
    Well, if booting off of the original OS X install CD isn't working (which is surprising, since it shouldn't load anything that you have installed recently), then you could try doing a hard reset.

    Not sure what Mac you're running, so I don't know if you have a reset button or you have to use the key combination (your manual will tell you).

    You can also try resetting the PRAM (hold command-option-p-r when you restart and wait for the second memory chime).
     
  15. macrumors 65816

    #15
    How do i do that? Is it risky for someone that doesn't know a whole lot about macs, like me?
     
  16. macrumors 65816

    #16
    I havea new REV C PowerBook.
     
  17. macrumors 65816

    #17
    I'm sure i could boot from the cd but i don't know when to push down 'C'
     
  18. emw
    macrumors G4

    emw

    #18
    Do what? Hard reset? Your manual should tell you. Single user? Command-S on boot.

    Hard reset and PRAM reset are not risky - they reset parameters. Never used Single user mode.
     
  19. emw
    macrumors G4

    emw

    #19
    Hold C as soon as you click restart and keep holding it until you see/hear it boot up from the CD. I believe there's a visual cue, but I haven't done it in awhile.
     
  20. macrumors 65816

    #20
    What exactly does the hard reset do and what exactly is the single mode? Sorry for the stupid questions, i'm a little panicked.
     
  21. emw
    macrumors G4

    emw

    #21
    Okay. Settle down and stay calm. First things first. Forget hard resets and PRAM resets until you try to boot from the CD. I thought you had done this, but based on subsequent posts you haven't.

    Focus on one thing at a time and boot from the CD. Insert the CD. Restart your computer and immediately hold down the C key. Keep the C key held until you are sure it is booting off of the CD. If this works and doesn't force a restart again, let us know and we'll go from there.
     
  22. macrumors 65816

    #22
    Ok it has booted from the cd. Now what?
     
  23. emw
    macrumors G4

    emw

    #23
    Do you have anything you want to save on this Mac? If not, reinstall the system from scratch.

    If so, well, I'd try doing a find for anything modified in the last <x> hours on your hard drive (corresponding to when you installed this software) and deleting anything related to that software.

    After that, try rebooting without the CD.

    The others may have more suggestions if they're still watching.
     
  24. macrumors 65816

    #24
    I have a lot of stuff i want on this thing. I really don't want to re-install the OS. Is there any way to get into my system without any programs starting, or me being in a "safe mode" like windows has. Just so i could go in and delete the program?
     
  25. emw
    macrumors G4

    emw

    #25
    If you're booted off of the CD, you can do whatever you need to do on your hard drive. Do a find and see if you can wipe off the program (as I mentioned in my last post).
     

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