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Lost CPU CORES

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Operating Systems Linux Red Hat Lost CPU CORES
# 15  
Old 09-13-2011
Quote:
Originally Posted by fpmurphy
On Fedora and downstream, the file you probably want is /boot/config-<name of your kernel>.
What if someone replaced the kernel without replacing the config? /boot/config-* might lie, but /proc/config.gz won't...
# 16  
Old 09-13-2011
As far as I recall there is no /proc/config.gz in RHEL. I am not in front of a RHEL 6.1 box at the moment but looking at a CentOS 5.6 and a Fedora 15 box, I do not find a /proc/config.gz.
# 17  
Old 09-13-2011
Try modprobe config if you don't have it.
# 18  
Old 09-13-2011
It is probably quicker and easier to simply do a uname -a and check for SMP support.
# 19  
Old 09-13-2011
OBTW, I just noticed that, at least on Ubuntu, the config file is in /boot, example:

Code:
$ grep CONFIG_SMP config*
config-2.6.24-19-server:CONFIG_SMP=y
config-2.6.31-15-server:CONFIG_SMP=y
$

# 20  
Old 09-13-2011
Quote:
Originally Posted by Corona688
Try modprobe config if you don't have it.
Huh?
# 21  
Old 09-13-2011
On some systems you can get /proc/config.gz by loading the config.ko kernel module, which you do by running modprobe config.
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