Iam trying to upgrade the kernel from 2.6.9-5.ELsmp to kernel-2.6.9-11.EL linux 4.

Iam able to successfully run the kernel upgrade.

[root@localhost RPM]# rpm -Uvh kernel-2.6.9-11.EL.i686.rpm
warning: kernel-2.6.9-11.EL.i686.rpm: V3 DSA signature: NOKEY, key ID a7048f8d
Preparing... ########################################### [100%]
package kernel-2.6.9-11.EL is already installed

But when i check using uname -a it is showing the previous kernel version.
[root@localhost RPM]# uname -a
Linux localhost.localdomain 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:30:39 EST 2005 i686 i686 i386 GNU/Linux


Please advise

Hello system11,


there is no need to run U switch to for upgrade new kernal you can just install new kernal rpm
[root@localhost]#rpm -ivh kernalpackagename.rpm --force

after that you will see 2 verson here try to boot with new verson for test if it get booted successfully then you can remove old verson by rpm -e packageverson after that try to check by uname -a command for newer one.

it needs rebooting.

the answer to your problem is the system needs to reboot after upgrading kernel

but before that make sure you check your grub.conf

and make sure you see your new kernel version as the changes will take effect only after reboot

I have removed the rpm -e rpm file and restarted the server.But still it is showing the old version.

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:30:39 EST 2005 i686 i686 i386 GNU/Linux
[root@localhost ~]#

[root@localhost ~]# rpm -q kernel
kernel-2.6.9-11.EL


[root@localhost ~]# cat /etc/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
# initrd /initrd-version.img
#boot=/dev/hda
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux ES (2.6.9-11.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-11.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.9-11.EL.img
title Red Hat Enterprise Linux ES (2.6.9-5.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-5.ELsmp ro root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.9-5.ELsmp.img



Do i need to remove kernel /vmlinuz-2.6.9-5.ELsmp also.

As per your grub.conf your old kernel is not yet uninstalled

I am sure you did this while uninstalling your kernel

reboot the system

and then check your kernel version

I have removed the other rpm and restarted the server.Iam getting kernel panic error.The server is not booting now.

When you say the "other rpm", which one are you referring to?

You have (had !) 2 kernels installed, 2.6.9-11 & 2.6.9-5. The default kernel ctr counts from 0, so
default=1 => 2.6.9-5 , your known good working kernel(!)
You should NEVER remove that until you have tested the new kernel 2.6.9-11 by setting default=0 and rebooting and check it works ok and 'uname -a' to check its that kernel.
Kernels are very small on disk and most people keep 3 (or more) in case a problem takes a while to appear.

It sounds like you've removed a kernel, but not updated 'default=...' field.
Try booting from the install media and putting
at the initial cmd line.