LinuxQuestions.org
Visit the LQ Articles and Editorials section
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices

Reply
 
Search this Thread
Old 03-10-2009, 09:09 AM   #1
ramprakash
LQ Newbie
 
Registered: Dec 2008
Posts: 9

Rep: Reputation: 0
boot issues with 2 CPU server


Hi All,

We have purchased new server with 2 CPU. When my vendor delivered server with one CPU. We did not noticed that and installed Redhat Linux 4.6, after few days we have relaized that there is no second CPU. We have contacted my vendor and they have delivered the 2 CPU. We have installed the 2 CPU and rebooted. But the server not able to reboot. When I press f2 and enter setup, it is showing 2 CPU and all the memory. But is not able to boot. Then I have removed the new CPU and booted, the server able to boot with one CPU. Later I have removed the old CPU and installed the new CPU and restarted the server. Now the server able to boot with single new CPU.

Server not able to boot with when I install 2 CPU. Can some one guide me what the issue is.

Thanks and Regards,
Ram.
 
Old 03-10-2009, 10:03 AM   #2
Linux.tar.gz
Senior Member
 
Registered: Dec 2003
Location: Paris
Distribution: Slackware forever.
Posts: 2,227

Rep: Reputation: 86
Install the new processor only and see if it works.
 
Old 03-10-2009, 11:30 PM   #3
ramprakash
LQ Newbie
 
Registered: Dec 2008
Posts: 9

Original Poster
Rep: Reputation: 0
Quote:
Originally Posted by Linux.tar.gz View Post
Install the new processor only and see if it works.
We have tested with new processor. It is working fine with single processor.
 
Old 03-11-2009, 03:42 AM   #4
Linux.tar.gz
Senior Member
 
Registered: Dec 2003
Location: Paris
Distribution: Slackware forever.
Posts: 2,227

Rep: Reputation: 86
Then your kernel is not multi-cpu enabled.
 
Old 03-11-2009, 04:50 AM   #5
Frullet
LQ Newbie
 
Registered: Feb 2009
Location: Sydney,Australia
Distribution: Slackware
Posts: 12

Rep: Reputation: 0
You need to enable Symmetric Multi-processing Support for your kernel.

It is located under Processor type and features in your kernel config file.
 
Old 03-11-2009, 05:44 AM   #6
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 12,223

Rep: Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019
Shouldn't matter - non-SMP kernels simply use just one CPU/core.
What does this mean ?
Quote:
But is not able to boot.
- do you get through post?
- do you see a boot menu ?
- any messages ?
- what kernel (uname -a) are you using ?.
 
Old 03-11-2009, 11:18 PM   #7
ramprakash
LQ Newbie
 
Registered: Dec 2008
Posts: 9

Original Poster
Rep: Reputation: 0
Quote:
Originally Posted by syg00 View Post
Shouldn't matter - non-SMP kernels simply use just one CPU/core.
What does this mean ?- do you get through post?
- do you see a boot menu ?
- any messages ?
- what kernel (uname -a) are you using ?.
Yes, I can see the boot menu.
There is no error messages, simply server going to shutdown.
uname -a

Linux test 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64
x86_64 x86_64 GNU/Linux

Thanks and Regards,
Ram.
 
Old 03-11-2009, 11:47 PM   #8
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 12,223

Rep: Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019Reputation: 1019
Quick check would be to download a (64-bit) liveCD and see if that boots o.k. and sees both processors. This will have a (much) more recent kernel.
Also you can edit the boot entry for your RHEL system - highlight the entry and hit "e" to edit that entry. Do the same on the kernel line - remove the "rhgb quiet" from the line.
Hit <Enter> then "b" to boot.
This should allow you to see any messages - the change is for that boot only, it isn't permanent.
 
  


Reply

Tags
boot


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
CPU + Mouse issues (Kubuntu) tekg Linux - Software 3 05-31-2007 09:03 AM
Overheating/CPU temp issues jswhite Linux - Laptop and Netbook 9 11-22-2005 07:31 AM
1st compiled kernel but still have cpu issues RIgimp75 Slackware 1 01-12-2004 05:05 AM
sound server issues, ALSA overloading cpu shinacalypse Linux - Software 1 12-14-2003 01:55 PM
CPU issues wvrhlu Linux - Hardware 3 06-11-2003 07:15 AM


All times are GMT -5. The time now is 06:13 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration