[libvirt-users] [Qemu-devel] SSH console for qemu

[Nikita A Menkovich]

I want to launch very minimal ssh daemon (that listen on selected port
and allows only input commands and read output from console)  that
launch when guest started, and this not run inside a guest.
Thanks to the link for patch

On 7 July 2011 22:19, Eric Blake <eblake at redhat.com> wrote:
> On 07/07/2011 02:36 AM, Nikita A Menkovich wrote:
>> Seems no, I think, that the best way is running some kind of ssh
>> daemon, that connects to console (/dev/vcsa1 for example), that listen
>> on port and send to output console events on boot, and allow to work
>> with server with simple ssh client. Also important feature will be
>> saving history of output.
>
> If you're trying to capture boot events, then you have to have an SGA
> (serial graphics adaptor) capable BIOS that can output boot events on
> the serial console.  There's recent work underway to add that feature to
> qemu, and to expose that feature from libvirt:
>
> https://www.redhat.com/archives/libvir-list/2011-July/msg00174.html
>
> Setting up an ssh daemon in the guest is too late - the daemon won't be
> set up until the guest has already booted, so there's no way to have
> that daemon forward boot messages back to the host in a timely manner.
> I think you're trying too hard - 'virsh console' really is the way to
> read all messages output to the guest's console, and your only missing
> piece is that you also appear to want BIOS to output to the console.
>
> --
> Eric Blake   eblake at redhat.com    +1-801-349-2682
> Libvirt virtualization library http://libvirt.org
>
>



-- 
Nikita A Menkovich
http://libc6.org/
JID: menkovich at gmail.com
Tel: +7 (921) 423-96-48