CentOS - Jan 2010 - Is it safe to run only the XEN kernel on dom0 host?

Hi,

I have an issue with my XEN servers, in that when I do a yum upgrade,
it upgrades the kernels, and then updates the grub.conf file to boot
with the normal Linux kernel, and not the XEN kernel - and I tend to
forget to update the grub.conf, until I reboot and see XEN isn't
running.

So, is it safe to remove the normal kernel & kernel-development, and
only run the XEN kernel?

This is what I have currently:

root at usaxen03:[~]$ rpm -qa | grep kernel
kernel-xen-2.6.18-128.7.1.el5
kernel-xen-2.6.18-164.10.1.el5
kernel-xen-2.6.18-164.el5
kernel-headers-2.6.18-164.10.1.el5
kernel-xen-2.6.18-164.6.1.el5
kernel-xen-2.6.18-164.9.1.el5


When I want to remove kernel-headers, it wants to remove gcc as well:


root at usaxen03:[~]$ rpm -qa | grep kernel
kernel-xen-2.6.18-128.7.1.el5
kernel-xen-2.6.18-164.10.1.el5
kernel-xen-2.6.18-164.el5
kernel-headers-2.6.18-164.10.1.el5
kernel-xen-2.6.18-164.6.1.el5
kernel-xen-2.6.18-164.9.1.el5



Do I really need gcc on the XEN dom0 host? The servers are all running
CentOS 5.4 x64

Rudi Ahlers wrote on Sat, 9 Jan 2010 11:27:57 +0200:
> I have an issue with my XEN servers, in that when I do a yum upgrade,
> it upgrades the kernels, and then updates the grub.conf file to boot
> with the normal Linux kernel, and not the XEN kernel
That happens because your first installation was not xenified. You can set 
the default kernel in /etc/sysconfig/kernel.
> So, is it safe to remove the normal kernel & kernel-development, and
> only run the XEN kernel?
yes.

Kai

-- 
Get your web at Conactive Internet Services: http://www.conactive.com

On Sat, Jan 9, 2010 at 1:02 PM, Kai Schaetzl <maillists at conactive.com>
wrote:
> Rudi Ahlers wrote on Sat, 9 Jan 2010 11:27:57 +0200:
>
>> I have an issue with my XEN servers, in that when I do a yum upgrade,
>> it upgrades the kernels, and then updates the grub.conf file to boot
>> with the normal Linux kernel, and not the XEN kernel
>
> That happens because your first installation was not xenified. You can set
> the default kernel in /etc/sysconfig/kernel.
>
>> So, is it safe to remove the normal kernel & kernel-development,
and
>> only run the XEN kernel?
>
> yes.
>
> Kai
>
> --
> Get your web at Conactive Internet Services: http://www.conactive.com
>
>
>
> _______________________________________________

Thanx Kai :)





-- 
Kind Regards
Rudi Ahlers
SoftDux

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