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Old 03-28-2006, 07:10 PM   #1
bburgy
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Registered: Jul 2004
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Unhappy 2.6.12-10-386 Kernel Hangs on Boot Up


Hey all,

I'm having a serious issue with my kubuntu installation. Earlier today, I performed the following action:

sudo apt-get upgrade

At which point, it appears another kernel was installed, or at least something changed with my current kernel. The version that was installed is:2.6.12-10-386. The odd thing is: that was the kernel that I had already installed previously. I am not sure why this was at all updated, or changed. In fact, I don't really
know what happened with it, but I did see where apt-get printed out something about the kernel.

The problem is actually that when I restarted the laptop later: it hanged on boot up. I restarted the computer, and tried to boot with the safe recovery setting for this kernel (2.6.12-10-386). It froze at this line:

[xxxxxx:xxxxx] checking if image is initramfs

I've been looking around, and it looks like other people with an IBM Thinkpad T23 are having the same issue; and yeah, it's a Thinkpad T23 that I am having the trouble with. I've seen several reports, but no solutions.

I have seen where people have attempted to disable ACPI (not sure what the correlation is...) to solve this issue. ACPI is already disabled with my kernel config. In fact, these are the options that I am passing the kernel:

kernel /boot/vmlinuz-2.6.12-10-386 root=/dev/hda3 ro acpi=off noacpi apm=on quiet splash

I'm really stumped. Any suggestions would be very much appreciated.

Thanks!
 
Old 03-29-2006, 07:09 AM   #2
nx5000
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have you tried nolapic
?
 
Old 03-29-2006, 07:17 AM   #3
bburgy
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Registered: Jul 2004
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Hello,

I was looking at the output while the kernel was booting, and it says

"Local APIC disabled by BIOS"

I assume this means the same thing? I don't have the machine with me at the moment, but I can try that once I get home.

Thanks for the reply!
 
Old 03-29-2006, 07:31 AM   #4
nx5000
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Yes it means lapic is OFF.

It seems people have a problem with this laptop with this kernel, bad luck

It also seems they resolve their problem by using the 686 version, maybe when the kernel tries to uncompress the image to rootfs, and due to bad optimizations it fails. No clue..


Do you have/know a method to boot and install this 686 kernel? A livecd which supports your network card? and has chroot
 
Old 03-29-2006, 09:15 AM   #5
bburgy
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Registered: Jul 2004
Location: Canada
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Hi,

As an update, I have discovered that if I enable ACPI, that kernel will boot. I don't wish to use ACPI, as it causes issues with the system (the computer makes an odd buzzing sound internally... likely a funny fan issue).

I can boot an older kernel that I have available. I might be able to install a 686 kernel -- does ubuntu supply a stock 686 kernel?

I am still curious as to why this kernel will not boot, however.

Thanks!
 
Old 03-29-2006, 09:45 AM   #6
nx5000
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Hum sometimes the FAN are usefull!

A friend of mine has a T23, there are 2 websites he often goes to:

http://mailman.linux-thinkpad.org/ma...linux-thinkpad
http://www.thinkwiki.org/

http://www.linux-m32r.org/lxr/http/s...n/ibm-acpi.txt

ohhh:
http://www.thinkwiki.org/wiki/Problem_with_fan_noise

To know if ubuntu has a 686 , make a search
Code:
apt-cache search -n \[linux\|kernel\]-image.*686
Happy reading

Last edited by nx5000; 03-29-2006 at 09:48 AM.
 
Old 04-01-2006, 09:23 AM   #7
bburgy
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Registered: Jul 2004
Location: Canada
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Posts: 38

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Thanks very much for your help! That's quite a valuable resource you've pointed me to. I think I'll also look into getting the 686 kernel, as it appears Ubuntu does have a stock 686 kernel available.

Thanks again,

Keith
 
  


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