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* [Qemu-devel] How to get target system display with qemu -nographic option?
@ 2008-07-17 18:07 Atoosah
  2008-07-17 21:33 ` David Barrett
  0 siblings, 1 reply; 5+ messages in thread
From: Atoosah @ 2008-07-17 18:07 UTC (permalink / raw)
  To: qemu-devel

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I would like to run my fedora core image using Qemu in nographic mode.
Currently I am able to get qemu's serial console, but not the login
prompt/"target system display". So, far I am able to the Qemu's serial
console (i.e. the graphical emulations Ctrl-Alt-3 output) if I use the
option -serial pty or -serial vc, but the option -serial stdio does not give
me the (qemu) prompt.

1. Is the system display available, hidden? If so, what options are missing
below to enable this?

2. Do I need to make changes to host? I've tried adding the entry
"7:2345:respawn:/sbin/mgetty ttyS0 9600 vt100-nav" to the /etc/inittab file.
Also, /dev/ttyS0 does exists.

I have tried running qemu with both ways below, which have the same effect.
The append option currently seems to have no effect.
$ qemu -hda mydisk.img -m 512 -append "root=/dev/hda console=ttyS0"
-nographic -serial vc

$ qemu -hda mydisk.img -m 512 -nographic -serial vc

3. Why does qemu just start with the serial output, but does not allow me to
switch to neither the console output nor the target output? i.e. No Ctrl
keys work (Ctrl-a c, Ctrl-a x, ...)

Thank you in advance.

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^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Qemu-devel] How to get target system display with qemu -nographic option?
@ 2008-07-17 23:50 Atoosah
  2008-07-18  0:10 ` David Barrett
  2008-07-18  3:09 ` andrzej zaborowski
  0 siblings, 2 replies; 5+ messages in thread
From: Atoosah @ 2008-07-17 23:50 UTC (permalink / raw)
  To: qemu-devel

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>
> When -nographic is specified, no graphical window is created.  The only
> way to see the graphics window is using the VNC option.
>

If I run the program with graphics enabled (i.e. no -nographic option) I get
the login prompt and then the password. From then on, the display is in
shell prompt mode. So, does -nographic mean that I won't be able to access
this display? If so, it seems very limiting without being able to run
experiments on our guest machine.


>
> Furthermore, when -nographic is specified, I think "-monitor" defaults
> to "serial", meaning the actual serial output is overridden by the qemu
> monitor.  To change this, look at "-monitor" and direct it somewhere
> else (such as to a TCP stream).
>

I'd appreciate if you'd explain a bit more what you mean by "serial output
is overridden by the qemu
monitor"..


>
> Does this help?
>

Thank you. I'm still looking at the vnc option. Just to make sure the
/etc/inittab that is modified (with 7:2345:respawn:/sbin/mgetty ttyS0 9600
vt100-nav) should be the guests or the hosts? I'm a newbie in this area, so
any help would be appreciated.


>
> -david
>

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^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2008-07-18  3:09 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2008-07-17 18:07 [Qemu-devel] How to get target system display with qemu -nographic option? Atoosah
2008-07-17 21:33 ` David Barrett
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2008-07-17 23:50 Atoosah
2008-07-18  0:10 ` David Barrett
2008-07-18  3:09 ` andrzej zaborowski

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