Re: [Xen-users] Xen Kernel not booting

[Steven Timm <timm@xxxxxxxx>]

Are there any very new 3ware hardware on the remote system?  Or nvidia
video cards? I have had problems with both of those.
Best way I know to get the Xen boot logs is to use a serial console
and specify console=com1,tty com1=115200,8n1
on the xen.gz line in grub.conf.  Also make sure that when
you installed the kernel-xen that the initrd.img was made correctly.

The other thing you could do is to chkconfig xend off and
reboot on the xen kernel again, to see if it is actually
the kernel that is the problem or starting up the userspace xend.
Have seen that break too, although not on the version of the
kernel you mention, which is exactly the same version I run
in production.

Steve Timm



On Sat, 7 Feb 2009, Meghanand Acharekar wrote:

> Hi,
>
> I had a remote server running CentOS 5.2, with  XEN from official CentOS
> repositories.
> I installed both xen and kernel-xen packages on the server & than modified
> the grub's menu to boot from XEN kernel.
>
> Package details:
>
> kernel-xen-2.6.18-92.1.22.el5
> xen-libs-3.0.3-64.el5_2.1
> xen-3.0.3-64.el5_2.1
>
> But the system is not booting from the newly installed XEN kernel, it gets
> stuck up.
> System boots perfectly with normal kernels
>
> Other installed kernels
> kernel-devel-2.6.18-92.1.22.el5
> kernel-xen-2.6.18-92.1.22.el5
> kernel-2.6.18-92.el5
> kernel-devel-2.6.18-92.el5
> kernel-2.6.18-92.1.22.el5
> kernel-headers-2.6.18-92.1.22.el5
>
>
> Where can I found XEN boot logs, to find out the reason behind this,
> Being remote system I am totally unaware about what is going wrong while
> booting from XEN kernel.
--
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm@xxxxxxxx  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.

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