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Old 09-25-2007, 09:55 PM   #1
hitchface
LQ Newbie
 
Registered: Sep 2007
Location: Alberta, Canada
Distribution: Ubuntu...at least trying.
Posts: 3

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Unhappy One heck of an Ubuntu road block...


Hey folks,

Justin here. I have a question (don't we all) about this error message I have been getting when trying to boot into Ubuntu 7.04. Goes to the tune of:

Starting up....
[ 79.123557] ..MP-BIOS bug: 8254 timer not connected to IO-APIC.
[ 79.302405] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send a report. The try booting with the 'noapic' option.
[ 79.302439]

The first time I installed Ubuntu it seemed to work fairly well, and this error would go away with a restart if it ever popped up. All of a sudden I made so many changes almost without knowing it. Without wanting to take the time and see what I had done/reverse the changes, I re-installed Ubuntu. Now I have this error permanently it seems. I tried booting with the 'noapic' option, but then I lost the ability to have a GUI running, and I was essentially in DOS, which didn't help matters. What can I do to fix this?

System specs:

Asus M2N4-SLI
AMD Athlon 64 X2 4200+
2 gigs of Corsair XMS2 DDR2 800
1 80 gig Seagate Barracuda 7200.9 w/ Windows XP MCE
1 250 gig Seagate Barracuda 7200.10 w/ Ubuntu 7.04
eVGA GeForce 7600GS
Mushkin Enhanced 550W PSU
LG Super Multi drive

Thanks very much in advance!
 
Old 09-25-2007, 10:47 PM   #2
win32sux
LQ Guru
 
Registered: Jul 2003
Location: Los Angeles
Distribution: Ubuntu
Posts: 9,870

Rep: Reputation: 377Reputation: 377Reputation: 377Reputation: 377
Quote:
Originally Posted by hitchface View Post
I tried booting with the 'noapic' option
Could you tell us exactly what steps you took when you did this?

I'm just trying to make sure you did it properly, because it really should have done the trick.
 
Old 09-26-2007, 01:34 PM   #3
hitchface
LQ Newbie
 
Registered: Sep 2007
Location: Alberta, Canada
Distribution: Ubuntu...at least trying.
Posts: 3

Original Poster
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Well, it actually worked this time. Must have had multiple finger slips.

Pressed 'e' on 'Ubuntu, kernel 2.6.20-15-generic'. Again on 'kernel /boot/vmlinuz -2.6.20-15-generic - root=UUID=e80a8cd0-9289-41ce-8767-7013e12ac79d ro quiet splash'.

I appended noapic to the end of that line, and pressed 'b' to boot up. Worked!

Now for the other questions. 1, how can I make this permanent so I don't have to do this every time I boot up, and 2, what are the possible side effects of disabling APIC?
 
Old 09-27-2007, 07:40 PM   #4
win32sux
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Registered: Jul 2003
Location: Los Angeles
Distribution: Ubuntu
Posts: 9,870

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Quote:
Originally Posted by hitchface View Post
how can I make this permanent so I don't have to do this every time I boot up
Edit your /boot/grub/menu.lst file.

Last edited by win32sux; 09-28-2007 at 06:04 PM. Reason: Had accidentally included an "/etc" in the path.
 
  


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