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Obsolete Releases => SME Server 7.x => Topic started by: yuku on March 27, 2006, 09:35:20 AM

Title: kernel panic after reboot
Post by: yuku 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?

Title: Re: kernel panic after reboot
Post by: cactus 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.

Title: kernel panic after reboot
Post by: paul_NZ 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

Title: kernel panic after reboot
Post by: yuku 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.

Title: kernel panic after reboot
Post by: paul_NZ 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.