Re: [Qemu-discuss] VGA choices

[Vincenzo Romano]

Hi Narcis,

Thank you for the extra details: the documentation is quite terse if
not insufficient.
I mean: https://qemu.weilnetz.de/doc/qemu-doc.html linked as the
official user manual from
http://wiki.qemu.org/Manual.

According to your experience, which approach is the "lightest" among
"-display vnc" and "-ncurses"?

Finally, may I ask you where did you pull these details from?

Thanks again.
--
Vincenzo Romano - NotOrAnd.IT
Information Technologies
--
NON QVIETIS MARIBVS NAVTA PERITVS


2017-02-01 9:23 GMT+01:00 Narcis Garcia <address@hidden>:
> -nographic cannot be combined with any other -display.
> As far as I know, Curses go to local stdout; you can see easily when you
> lauch Qemu from command line and, by intuition I supose that, (same as
> SDL) closing the stdout channel/terminal Qemu process can be closed too.
>
> You could launch Qemu process in a "screen" session, and attach remotely
> to it when you connect through SSH.
>
>
> El 01/02/17 a les 08:51, Vincenzo Romano ha escrit:
>> Thanks, Narcis.
>>
>> 2017-02-01 8:29 GMT+01:00 Narcis Garcia <address@hidden>:
>>> VNC is a protocol to connect to a GUI, not MDA/TXT.
>>> Independently of what guest OS does or shows, Qemu only outputs display
>>> through:
>>> - VNC (graphic)
>> Networked
>>
>>> - SDL (graphic)
>> Local to the host
>>
>>> - GTK (graphic)
>> Local to the host (maybe also networked with X11)
>>
>>> - Curses (text)
>> Local?
>>
>>> - none (no display)
>> None, indeed.
>>
>> My host is a headless server and I'd like to save all resources I can
>> from it to give them to the guests.
>> So I need remote access to the guests that I would like to do with
>> SSH, RDP or VNC
>> (the latter two with SSH tunnels).
>>
>> VNC seems to me a solution, but I couldn't find enough details about
>> the curses solution which
>> would be my preferred solution because of its low requirements.
>> Where is the ncurses output pushed to? A local PTY? A Unix socket?
>>
>> Why cannot I use -nographic with -daemonize (and VNC)?
>>
>>> El 31/01/17 a les 21:14, Vincenzo Romano ha escrit:
>>>> Hi.
>>>> Thanks for the feedback.
>>>>
>>>> I need to have a text mode console to the server via VNC (or actually
>>>> whatever else) in case the network is not working or to operate on the
>>>> BIOS and the boot loader.
>>>> And I would like to have such a thing as lean as possible to save
>>>> resources on the host.
>>>> As of now I am using "-vga virtio" that is a full blown VGA. I am
>>>> thinking about a PC with just 80x25 screen.
>>>>
>>>> --
>>>> Vincenzo Romano - NotOrAnd.IT
>>>> Information Technologies
>>>> --
>>>> NON QVIETIS MARIBVS NAVTA PERITVS
>>>>
>>>>
>>>> 2017-01-31 19:47 GMT+01:00 A. Wan <address@hidden>:
>>>>> On Tue, January 31, 2017 09:54, Vincenzo Romano wrote:
>>>>>> Sorry for the typo:
>>>>>>
>>>>>> BBC=VNC
>>>>>>
>>>>>>
>>>>>>
>>>>>> Il 31 gen 2017 18:48, "Vincenzo Romano" <address@hidden> ha
>>>>>> scritto:
>>>>>>
>>>>>> Hi all.
>>>>>> I need to create a number of VM to be used as Linux servers.
>>>>>> I am planning to use only a VNC console.
>>>>>> Can I disable the VGA settings (-vga none) and only use the BBC server?
>>>>>> If not, what's the minimal (as far as the host resources are concerned)
>>>>>> configuration for the local text-only console via VNC?
>>>>>>
>>>>>> TIA.
>>>>>>
>>>>>
>>>>> I don't think it is possible to VNC to text mode console.  Is there a 
>>>>> reason
>>>>> why you don't want to telnet/ssh to a guest and then run screen?
>>>>>
>>>>> Alex
>>>>>
>>>>
>>>
>>
>