Kernel panic at boot

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Level 1

1 points

Kernel panic at boot

I don't understand. I just got a new hard drive and installed it in my computer. I booted it and the computer started. Both my hard drive and the one I just installed appeared. I formated the new one to mac and turned off the computer. I turned the computer back on pressed option at boot. Waited for my install disk to appear and went upstairs to my other computer to check on my video compiling. About 30 minutes after I came back with a nice kernel panic and the fans were running at full speed. I turned it off waited a minute and tried to reboot off the cd. The apple logo appeared then the little wheel under it and just as the screen was turning blue to say welcome to mac os x 10.5 kernel panic. I thought well maybe I could boot of the hard drive. Again right as the screen was turning to the aurora backround where it askes you to log in kernel panic. Any ideas whats wrong. I read this post

https://discussions.apple.com/thread/2560116?threadID=2560116

I haven't tried anything from it though. I might try safe booting but I don't wanna break anything.

PowerMac, G5

Posted on Jan 23, 2013 7:19 PM

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Answer 1

BDAqua

Level 10

239,111 points

Jan 24, 2013 11:28 AM in response to OnfireLBPGuy

Safe Boot should be safe to try, but try disconnecting the new drive.

Is the new drive SATA 1.5 Gb/s compatible?

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Answer 2

Jan 24, 2013 1:22 PM in response to OnfireLBPGuy

Kernel panics are usually caused by a hardware problem – frequently RAM, a USB device or a Firewire device. What external devices do you have connected? When trying to troubleshoot problems, disconnect all external devices except your monitor, keyboard and mouse. Do you experience the same problems?

Do you have an Apple Hardware Test disc? Running the Apple Hardware Test in Loop Mode is an excellent troubleshooting step for finding intermittent hardware problems. It is especially useful when troubleshooting intermittent kernel panics. If Loop Mode is supported by the version of the Apple Hardware Test you are using, you run the Extended Test in Loop Mode by pressing Control-L before starting the test. Looping On should appear in the right window. Then click the Extended Test button.The test will run continuously until a problem is found. If a problem is found, the test will cease to loop, indicating the problem it found. If the test fails, be sure to write down the exact message associated with the failure.In some cases, RAM problems did not show up until nearly 40 loops, so give it a good run.

May be a solution on one of these links.

http://support.apple.com/kb/TS3742 What's a "kernel panic"? (Mac OS X)

http://www.macmaps.com/kernelpanic.html Mac OS X Kernel Panic FAQ

http://www.index-site.com/kernelpanic.html Mac OS X Kernel Panic FAQ

http://www.thexlab.com/faqs/kernelpanics.html Resolving Kernel Panics

http://www.macfixit.com/article.php?story=20060911080447777 Avoiding and eliminating Kernel panics

http://macosg.com/group/viewtopic.php?t=800 12-Step Program to Isolate Freezes and/or Kernel Panics

 Cheers, Tom 😉

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Answer 3

OnfireLBPGuy Author

Level 1

1 points

Jan 25, 2013 2:10 PM in response to BDAqua

It boots up fine in safe boot with the new drive attached. What could I do to make it stop crashing when I try a normal boot

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Answer 4

BDAqua

Level 10

239,111 points

Jan 25, 2013 4:57 PM in response to OnfireLBPGuy

Interesting, here's some info on the differences...

One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...

PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive

Reboot, test again.

If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.

Check the System Preferences>Other Row, for 3rd party Pref Panes.

Also look in these if they exist, some are invisible...

/private/var/run/StartupItems

/Library/StartupItems

/System/Library/StartupItems

/System/Library/LaunchDaemons

/Library/LaunchDaemons

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Answer 5

OnfireLBPGuy Author

Level 1

1 points

Jan 26, 2013 8:07 AM in response to BDAqua

It wouldn't let me repair the permissions in safeboot. Infact it wouldn't let me check them.

I thought cause the kernel panic occurs at boot I would try verbose boot (command + v)

I got this:

Could not find directory /System/Library/StartupItems

Trying again in

3

2

1

Could not find directory /System/Library/StartupItems

Trying again in

3

2

1

It did that a couple times then moved on to could not find /Library/StartupItems

then it froze. I assumed when it froze that is when the kernel panic occured

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Answer 6

BDAqua

Level 10

239,111 points

Jan 26, 2013 10:43 AM in response to OnfireLBPGuy

Which drive was it booted from when you couldn't repair or verify?

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Answer 7

OnfireLBPGuy Author

Level 1

1 points

Jan 26, 2013 1:50 PM in response to BDAqua

Macintosh HD. It wouldn't let me verify or repair that disk

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Answer 8

BDAqua

Level 10

239,111 points

Jan 26, 2013 4:10 PM in response to OnfireLBPGuy

I suspect it's this other problem drive interfering, try with the data cable pulled on that problem one.

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Answer 9

OnfireLBPGuy Author

Level 1

1 points

Jan 30, 2013 7:42 PM in response to Texas Mac Man

What disk would the Hardware Test stuff be on. When I got the computer secondhand I got the original install disks, a 10.4.7 server install disk, a 10.5 server install disk and two leopard developer preview packages (they both contain two disks. Mac OS X server leopard and Mac OS X leopard + Xcode.

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Answer 10

OnfireLBPGuy Author

Level 1

1 points

Jan 30, 2013 7:44 PM in response to BDAqua

So I finally got the time and opened up the computer. Took the new disk out and same panic. I think I have a ram problem or I need to somehow reinstall the startup items folder. I don't understand how startup items could effect booting off a disk though

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Answer 11

BDAqua

Level 10

239,111 points

Jan 31, 2013 10:39 AM in response to OnfireLBPGuy

OK, with only the new drive connected, does it panic booting from the Install Disc?

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Answer 12

OnfireLBPGuy Author

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1 points

Jan 31, 2013 5:42 PM in response to BDAqua

It didn't kernel panic off the disk with only the new drive. I'm gonna try installing both then booting off the CD.

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Answer 13

BDAqua

Level 10

239,111 points

Jan 31, 2013 8:48 PM in response to OnfireLBPGuy

Keep us posted please, but seems the original Disk is having major problems.

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Answer 14

OnfireLBPGuy Author

Level 1

1 points

Jan 31, 2013 8:57 PM in response to BDAqua

Oh sorry. I tried sending a reply from my iPad and I closed the Smart Cover thinking it sent. I see it didn't. Anyhow. I put both disks back in and tried booting from the CD and it worked. I formatted both disks then raided them together. Installed Mac OS X over that and now it's working fine. I'm still trying to figure out what went wrong before. I think it might of been dram or ram or maybe just a lose data cable. It works now. Thanks for the great advice. Any idea on what might of gone wrong the first time?

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Answer 15

BDAqua

Level 10

239,111 points

Feb 1, 2013 10:23 AM in response to OnfireLBPGuy

Sorry, no clear idea, but as a guess I'd say the connection.

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