Re: [Xen-users] Help: cannot attach to the domain's console. why?

[ma qiang <maqiang1984@xxxxxxxxx>]

Hi,
    Thanks a lot again.
    Now I can install a new system in my computer using console
according to your reply. I used "xm vncviewer test" to check
installation is OK and type "linux console=ttyS0" in "boot: prompt",
then change to use "xm console test" to continue the installation.
    However, when I go to my lab, I found that all computers in my lab
is run on only text mode redhat and have no GUI and vnc. So I have to
search some methods which can use only console mode to control the
installation.
    But I haven't found any useful results. So would you help me again
and tell me how?  Thank you!

Best Wishes!
Qiang Ma

On Fri, Jan 22, 2010 at 6:26 PM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
> On Fri, Jan 22, 2010 at 2:58 PM, ma qiang <maqiang1984@xxxxxxxxx> wrote:
>> Hi，
>>   Thanks a lot.  I can connect to domU's console by munally updating
>> /etc/inittab and grub.conf,
>
> there's also /etc/securetty
>
>> but a little trouble is that after my type
>> "xm console test& enter", the console cannot print until I enter
>> again.
>
> I believe that's normal. When you run "xm console" to a HVM guest, it
> doesn't display any previous output. When you press enter, it displays
> a new login prompt (or new bash prompt, if you're already logged in).
>
>
>>   Now I want to setup serial console automaticly when I install
>> centos domU. I add "console='ttyS0'" to config file
>
> No, that's not it. When you boot to CD installer, it should ask you
> what to do (the "boot:" prompt). Normally you'd just press enter. If
> you want serial console support, you'd have to type "linux
> console=ttyS0" and press enter. Note that this will cause all output
> to be on serial port (that is, you have to run "xm console" to
> continue installation, as the GUI console will seem to stop working),
> resulting in text-based (non-GUI) installation. This may or may not be
> what you want. Personally, I like this better :D
>
> You could PROBABLY play around with console lines to see what
> arguments runs the installer on GUI but still sets up serial console
> properly. Perhaps "linux console=ttyS0 console=tty0" will do. Google
> should help, something like
> http://www.vanemery.com/Linux/Serial/serial-console.txt
>
> --
> Fajar
>

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