Kernel upgrade from 2.6.18 to 3.1.6

Iyyappan · 01-23-2012, 04:05 AM

I have tried to upgrade kernel from 2.6.18 to 3.1.6 in RHEL 5. I followed http://linuxgazette.net/111/krishnakumar.html link to do it. While compiling and installing i did not get any error. But while reboot i get an error displayed .
The error is
insmod: error inserting /lib/dm-region hash.ko.

From this i have tried many links to upgrade kernel, but i am unable to upgrade. I face the same error. I am doing some mistake, but i am not able to trace it. It would be helpful if some one provides a doc for upgrading kernel in CentOS or Red Hat.

Kindly provide some links to follow

deep27ak · 01-23-2012, 08:19 AM

I am not very sure you should download a tar file and use it to upgrade your OS

if there is any update available for redhat 5 kernel then you can use

Code:

#rpm -Uvh kernel

But i believe kernel-2.6 is the kernel used in RHEL 5
but if you manage to get any rpm for kernel 3.1 then here is what you need to do

chek your version of kernel

Code:

#rpm -qa | grep kernel

go to your repository location as I have mine inside yum directory

Code:

#rpm -ivh /yum/kernel-2.6.18-8.el5.i686.rpm

now check whether your kernel is installed

Code:

#rpm -qa | grep kernel

you will find two entries in your grub.conf

Code:

#vi /boot/grub/grub.conf
default=1
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-8.el5xen)
        root (hd0,0)
        kernel /boot/xen.gz-2.6.18-8.el5
        module /boot/vmlinuz-2.6.18-8.el5xen ro root=LABEL=/ rhgb quiet
        module /boot/initrd-2.6.18-8.el5xen.img
title Red Hat Enterprise Linux Server (2.6.18-8.el5)
        root (hd0,0)
        kernel /boot/.gz-2.6.18-8.el5
        module /boot/vmlinuz-2.6.18-8.el5 ro root=LABEL=/ rhgb quiet
        module /boot/initrd-2.6.18-8.el5.img

change the

Code:

default=1 ---> default=0

and boot your OS and if your machine boots up properly
then remove the old kernel

Code:

#rpm -e kernel-2.x.x.xel5.rpm

Iyyappan · 01-23-2012, 08:33 AM

I downloaded the source from http://www.kernel.org/. In many sites n forums, people have specified that upgrading kernel from source is the best method. I did not find an equivalent rpm in net for kernel 3.1.6. If u any one do have any link for download kernel 3*, kindly update. I am just doing this for learning purpose.

Note :My Current Kernel version 2.6.18.238