Xen users - Aug 2010 - [Help request] Xen 3.4 serial console setup problem

Hi all.
I ask Xen-users'' help on configuring serial console for dom0.

Xen setup environment:
Quad core Xeon server blade with 16GB FB-DIMM.
OS: CentOS 5.5
Xen ver: I intstalled Xen 3.4.3 with
GITCO-XEN3.4.3_x86_64.repo<http://www.gitco.de/repo/GITCO-XEN3.4.3_x86_64.repo>
(
It quite works well, but I can''t use some function such as serial
console
for dom0, hvm domU installation with virt-manger and so on.)

To use serial console with my Xen installed server blade, I configured
grub.conf with the direction 31.5 of Redhat Virtualization manual.

Here''s my grub.conf
=================================================================================================default=0
timeout=5
serial --unit=0 --speed=115200
terminal --timeout=5 serial console
title CentOS (2.6.18-194.11.1.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.3 com1=115200,8n1
        module /vmlinuz-2.6.18-194.11.1.el5xen ro
root=/dev/VolGroup00/LogVol00 console=tty0 console=ttyS0,115200n81 rhgb
quiet
        module /initrd-2.6.18-194.11.1.el5xen.img
=================================================================================================
The interesting thing is that above serial console setting works well with
CentOS''s Xen original repo(Xen 3.1.2-194.11.1.el5).

I''m looking around web to find solution for several days, but all the
solution I found was not far different from above setting.

If there''s anyone who know the solution, please let me know.

Thanks.


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Seongil O wrote:
>         kernel /xen.gz-3.4.3 com1=115200,8n1
>         module /vmlinuz-2.6.18-194.11.1.el5xen ro
> root=/dev/VolGroup00/LogVol00 console=tty0 console=ttyS0,115200n81 rhgb
Try to pass console=xvc0 (or console=hvc0) to your dom0 kernel (instead of 
the console=ttyS0... stanza). 

Regards,
Markus


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On Wed, Sep 1, 2010 at 4:06 PM, Markus Schuster <ml@markus.schuster.name>
wrote:
> Seongil O wrote:
>>         kernel /xen.gz-3.4.3 com1=115200,8n1
>>         module /vmlinuz-2.6.18-194.11.1.el5xen ro
>> root=/dev/VolGroup00/LogVol00 console=tty0 console=ttyS0,115200n81 rhgb
>
> Try to pass console=xvc0 (or console=hvc0) to your dom0 kernel (instead of
> the console=ttyS0... stanza).
Yup, you should definitely try console=xvc0. That''s the setting that
works for me on Xen 4.0.0 + kernel 2.6.34.

-- 
Fajar

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