[kwlug-disc] Different kernel version on same LTS?

[Rashkae]

On 14-04-18 05:34 PM, Khalid Baheyeldin wrote:
> I noticed something odd the other day, a discrepancy of the kernel version
> on almost identical machines.
> Both machines are running Ubuntu Server 12.04 LTS.
>
> This is a machine that was on 10.04 and then upgraded to 12.04.
>
> $ uname -vr
> 3.2.0-60-generic #91-Ubuntu SMP Wed Feb 19 03:54:44 UTC 2014
>
> $ dpkg -l | grep linux-im | awk '{print $2}'
> linux-image-3.2.0-60-generic
> linux-image-server
>
> $ grep DESCR /etc/lsb-release
> DISTRIB_DESCRIPTION="Ubuntu 12.04.4 LTS"
>
> This machine was initially the same, but had a hard drive failure, and was
> reinstalled on a new drive from a DVD
>
> $ uname -rv
> 3.11.0-19-generic #33~precise1-Ubuntu SMP Wed Mar 12 21:16:27 UTC 2014
>
> $ dpkg -l | grep linux-im | awk '{print $2}'
> linux-image-3.11.0-19-generic
>
> Same distro release as the other machine:
> $ grep DESCR /etc/lsb-release
> DISTRIB_DESCRIPTION="Ubuntu 12.04.4 LTS"
>
> Note the different kernel version?
> The upgraded machine has 3.2, and the installed one has 3.11!
>
> It is not causing any issues. Just curious why this happens.
>

You probably downloaded a new install DVD, which you will notice has an 
extra point number. (12.4.something).. the LTS install dvd's get re-spun 
with newer packages so the installation works well even on newer 
hardware that is no longer supported on the older kernel.  However, the 
kernel does not get updated to newer version with regular updates.  You 
can run sudo apt-get dis-upgrade to update all packages, including kernel.