[CentOS] Two cleanly installed CentOS 5.6 servers but with different Xen kernel versions

[Cal Webster]

It's possible that your #2 server has not rebooted or had problems with
the latest kernel or just has the default set to something other than
"0" in grub.conf.

What's the output of:

egrep 'default|title' /etc/grub.conf

yum list kernel | grep kernel

./Cal

On Fri, 2011-04-15 at 16:18 +0200, Hans Vos wrote:
> Hello,
> 
> Earlier this week I installed a test server with CentOS 5.6 with 
> Virtualization enabled during the installer. Today I installed another 
> server using the same method (they are identical servers). I just did a 
> yum update and I found something curious. Both servers have a different 
> kernel. Server 1 is at 9.1 version and server 2 at 5.1. How can this be? 
> How to I get the latest version on server 2? If I run yum update there 
> are none available.
> 
> If I input xm info I get this one server 1:
> 
> host                   : server1
> release                : 2.6.18-238.9.1.el5xen
> version                : #1 SMP Tue Apr 12 18:53:56 EDT 2011
> machine                : x86_64
> nr_cpus                : 4
> nr_nodes               : 1
> sockets_per_node       : 1
> cores_per_socket       : 4
> threads_per_core       : 1
> cpu_mhz                : 2400
> hw_caps                : 
> bfebfbff:20100800:00000000:00000940:0000e3bd:00000000:00000001
> total_memory           : 4095
> free_memory            : 383
> node_to_cpu            : node0:0-3
> xen_major              : 3
> xen_minor              : 1
> xen_extra              : .2-238.9.1.el5
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> cc_compiler            : gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)
> cc_compile_by          : mockbuild
> cc_compile_domain      : centos.org
> cc_compile_date        : Tue Apr 12 18:01:03 EDT 2011
> xend_config_format     : 2
> 
> And on server 2 it is this:
> 
> host                   : server2
> release                : 2.6.18-238.5.1.el5xen
> version                : #1 SMP Fri Apr 1 19:35:13 EDT 2011
> machine                : x86_64
> nr_cpus                : 4
> nr_nodes               : 1
> sockets_per_node       : 1
> cores_per_socket       : 4
> threads_per_core       : 1
> cpu_mhz                : 2400
> hw_caps                : 
> bfebfbff:20100800:00000000:00000940:0000e3bd:00000000:00000001
> total_memory           : 4095
> free_memory            : 383
> node_to_cpu            : node0:0-3
> xen_major              : 3
> xen_minor              : 1
> xen_extra              : .2-238.5.1.el5
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> cc_compiler            : gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)
> cc_compile_by          : mockbuild
> cc_compile_domain      : centos.org
> cc_compile_date        : Fri Apr  1 18:30:53 EDT 2011
> xend_config_format     : 2
>