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kernel panic after reboot

yuku

kernel panic after reboot
« on: March 27, 2006, 09:35:20 AM »
I've been having a strange problem with my SME7 box for some time now.
Each time when I did a SME7 upgrade to a new beta/pre/rc release the server needs to reboot.

But when this is done the server always comes in a kernel panic.
Rebooting again and then choosing the UP instead of SMP kernel lets the server bootup fine.

Looking at both the grub.conf files they both had the SMP kernel as the default. So I edited them using VI. However the server stills hangs.

Since I'm fairly new to using linux commandline I'm wondering if I have to do additional steps after editing the grub.conf files?

Offline cactus

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Re: kernel panic after reboot
« Reply #1 on: March 27, 2006, 09:12:18 PM »
Quote from: "yuku"
I've been having a strange problem with my SME7 box for some time now.
Each time when I did a SME7 upgrade to a new beta/pre/rc release the server needs to reboot.

But when this is done the server always comes in a kernel panic.
Rebooting again and then choosing the UP instead of SMP kernel lets the server bootup fine.

Looking at both the grub.conf files they both had the SMP kernel as the default. So I edited them using VI. However the server stills hangs.

Since I'm fairly new to using linux commandline I'm wondering if I have to do additional steps after editing the grub.conf files?


Do you have a single (use UP kernel) processor PC or a multiprocessor PC (use SMP kernel)?

The default is normally set after the reboot at the first install, whichever you choose there will be the derfault for the next time.
Be careful whose advice you buy, but be patient with those who supply it. Advice is a form of nostalgia, dispensing it is a way of fishing the past from the disposal, wiping it off, painting over the ugly parts and recycling it for more than its worth ~ Baz Luhrmann - Everybody's Free (To Wear Sunscreen)

Offline paul_NZ

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kernel panic after reboot
« Reply #2 on: March 28, 2006, 10:20:03 AM »
Did you run this command

"Before upgrading to 7.0 from any of the 7.0 test releases, you
must run the following command:

kudzu -q

"
If not try this workaround

"If you do not do this _prior_ to the upgrade, your system may
not boot. If this happens, please see the workaround here:

http://bugs.contribs.org/show_bug.cgi?id=698"

Cheers

yuku

kernel panic after reboot
« Reply #3 on: March 28, 2006, 10:45:53 AM »
cactus:

it's a UP (single P4) but somehow everytime it boots it defaults to the SMP kernel. I've edited grub.conf and removed all the SMP configs. maybe that helps :)

paul_NZ:

I was running pre2 before upgrading to rc1, and I did do the kudzu -q before upgrading. However I never did before all the previous upgrades.

I'll look at the workaround and see if this helps.

thnx guys.

Offline paul_NZ

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kernel panic after reboot
« Reply #4 on: March 28, 2006, 11:07:08 AM »
Quote from: "yuku"
cactus:

it's a UP (single P4) but somehow everytime it boots it defaults to the SMP kernel. I've edited grub.conf and removed all the SMP configs. maybe that helps :)


I asked this question once and Charlie advised me that with SME7 you choose UP or SMP at the time of booting from the boot menu and it is 'set for life' ... worked a treat

Quote


I was running pre2 before upgrading to rc1, and I did do the kudzu -q before upgrading. However I never did before all the previous upgrades.

I'll look at the workaround and see if this helps.

thnx guys.


I have run kudzu -q before EACH upgrade through to RC1 and had no problem since learning of this command.