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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Mac OS X > I get null sign at startup...

I get null sign at startup...
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Dedicated MacNNer
Join Date: Jul 1999
Location: Maynard, MA
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Aug 16, 2003, 01:20 PM
 
Hi,
When I try to boot my DP500 G5 AGP mac with three internal drives, when the gray screen comes up with the apple and the circular progress indicator, it just stays there for a while and then a null sign appears (circle with slash through it) and it will not boot.

I recently tried to install Yellow Dog Linux on one of the internal drives (for learning experience) and now I am unable to boot from my main drive.

It does not even show up on my desktop.

I can boot from OS9 and see the disk, select is as the start up, even see all the files, but am unable to boot from it or even see it on OSX from a FW hard drive.

I tried apple disk utility in OSX which doesn't see the drive, fsck -y, using DiskWarrior from OSX (which doesn't see the drive at all) , apple disk utility from OS9 which saw the drive but repair had no effect, and even using Diskwarrior from OS9, which said it rebuilt the directory, but I still get the null sign.

I reset the pram, pressed the cuda...I am out of ideas.

I don't understand why Yellow Dog would cause this if I installed it on it's own drive. I disconnected the drive, no change.

Any Ideas????

Please?

"An argument isn't just saying 'No it isn't'!" "Yes it is!" "NO IT ISN'T!"
     
Mac Elite
Join Date: May 2002
Location: New York City
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Aug 16, 2003, 02:16 PM
 
Something in your System Folder got moved, deleted, or corrupted. You have to do an Archive & Install from the Install Disc 1.
     
rlmorel  (op)
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Aug 16, 2003, 05:45 PM
 
No disks appear in the installer where you choose a disk! Gak! This bites.

No disk shows up in disk utility.

All disks show up in OS9.

Any ideas?

"An argument isn't just saying 'No it isn't'!" "Yes it is!" "NO IT ISN'T!"
     
Senior User
Join Date: Oct 2001
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Aug 16, 2003, 07:02 PM
 
Originally posted by rlmorel:
No disks appear in the installer where you choose a disk! Gak! This bites.

No disk shows up in disk utility.

All disks show up in OS9.

Any ideas?
If your OS is on a separate partition the only course would be to do a clean re-install at this point.It would save you time in the long run.
20"iMac intel 2.66 Duo: 4GB RAM : OS 10.6.6
     
Senior User
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Aug 16, 2003, 07:03 PM
 
Originally posted by JellyBeen:
If your OS is on a separate partition the only course would be to do a clean re-install at this point.It would save you time in the long run.
Try re-nstalling OS9 first then OSX..see if that works.
20"iMac intel 2.66 Duo: 4GB RAM : OS 10.6.6
     
rlmorel  (op)
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Aug 16, 2003, 10:11 PM
 
Heck. I did a full back up back on August 7th, so I can restore from that. I don't think I will loose much if I can just drop my saved mail folder into the restored backup.

Thanks for the suggestions, all.

Damn Yellow Dog.

"An argument isn't just saying 'No it isn't'!" "Yes it is!" "NO IT ISN'T!"
     
   
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