On 23.01.2018 13:13, Subhadeep Sarkar wrote:
Hi,

Thank you for your quick response!

However, even after trying on it for the last couple of last I could not make it work (clearly shows that I am a newbie in Genode). The good part is I am able to by pass the problem by installing Genode in a (ubuntu) virtual machine instead of a container. I successfully launched the demo for okl4 from there. Launching sel4, however, does not appear to be as straightforward. ;)

So, what is your problem? Can't connect to the VNC server? What kind of container did you tried? Does it have a separate IP address assigned? The IP should be from that container. The display number is usually 0. So, you should specify

QEMU_OPT += 127.0.0.1:0

if your IP is the same as a host machine (you can try a simple chroot instead of a container, for simplicity. Then it's IP would be 127.0.0.1. Also, in this case you will be able to access a local display, and VNC will be unneeded)

So, the problem may be with accessibility of your VNC display from outside the container. But you could try chroot for simplicity, as I suggested. VM is a worst option, because you'll need to run QEMU inside this VM for testing the binaries, which will be slow.
Anyway, thank you very much for your assistance.

Yours sincerely,
Subhadeep


-------------------------------------------------------------------------------------------
Subhadeep Sarkar, PhD
Postdoctoral researcher, Univ Rennes, Inria, CNRS, IRISA
Inria Rennes - Bretagne Atlantique
Campus universitaire de Beaulieu
35042 Rennes cedex, France

Website: subhadeep.cf
E-mail: subhadeep.sarkar@...552... ; subhadeepsarkarybs@...54...
Phone: +33 2 99 84 73 52

From: "Valery V. Sedletski via genode-main" <genode-main@lists.sourceforge.net>
To: genode-main@lists.sourceforge.net
Cc: "Valery V. Sedletski" <_valerius@...73...>
Sent: Friday, January 19, 2018 6:15:15 PM
Subject: Re: Installing Genode within container

On 19.01.2018 19:21, Subhadeep Sarkar wrote:
Hi,

I am a researcher at Inria France and am presently exploring Genode as a potential option to perform hands on with Sel4. I am relatively new to Genode and having an issue while installing it.

Here is the issue:
I am trying to install Genode on Ubuntu (16.04 LTS) running within a container. I am able to successfully see through all the installation steps.

However, when I issue the final command:  make -C build/x86_32 KERNEL=okl4 run/demo, I get this following error.

make[1]: Leaving directory '/Genode/genode/build/x86_32'
genode build completed
using 'core-okl4.o' as 'core.o'
using 'ld-okl4.lib.so' as 'ld.lib.so'
using 'pit_timer_drv' as 'timer'
install bootloader
creating ISO image...
xorriso 1.4.2 : RockRidge filesystem manipulator, libburnia project.

spawn qemu-system-i386 -no-kvm -display sdl -serial mon:stdio -m 512 -cdrom var/run/demo.iso
Could not initialize SDL(No available video device) - exiting
Aborting, received EOF
Log step failed, retry.
spawn qemu-system-i386 -no-kvm -display sdl -serial mon:stdio -m 512 -cdrom var/run/demo.iso -cdrom var/run/demo.iso
qemu-system-i386: -cdrom var/run/demo.iso: drive with bus=1, unit=0 (index=2) exists
Aborting, received EOF
Log step failed, retry.
spawn qemu-system-i386 -no-kvm -display sdl -serial mon:stdio -m 512 -cdrom var/run/demo.iso -cdrom var/run/demo.iso -cdrom var/run/demo.iso
qemu-system-i386: -cdrom var/run/demo.iso: drive with bus=1, unit=0 (index=2) exists
Aborting, received EOF
Log step failed, retry.

I did install libsdl1.2-dbg. Clearly, I do not have a display connected, as I am trying to run it from within a container. Could you please help me with this issue?

Thank you in advance!

Yours sincerely,
Subhadeep


I'd suggest you to comment
QEMU_OPT += -display sdl
out from the etc/build.conf, and add an option like
QEMU_OPT += -display vnc=<IP address>:<display>

This would activate QEMU built-in VNC server. You would be able to access the Genode display via a VNC client, connecting to a <IP address>:<display> VNC display.

I'm connecting to my development Linux system from my main OS, via SSH. When I need to run binaries, to test them, I start the corresponding run script. I see the logs in my SSH window. When I need to see the Genode screen, I just start the VNC viewer. The only disadvantage is that the mouse cursor in a VNC client is displaced, relative to Genode mouse cursor. I still did not worked this problem around. Also, there exists an option to run QEMU screen, or a SDL window in Genode/Linux, remotely via X11 remote connection (you need your DISPLAY env. variable to point to your local X11 display). But I did not managed to make it working successfully, because when I run it from an SSH session, it tries to use the "fbcon" SDL backend. Trying to set SDL_VIDEODRIVER env. variable to "x11" doesn't help here.
-------------------------------------------------------------------------------------------
Subhadeep Sarkar, PhD
Postdoctoral researcher, Univ Rennes, Inria, CNRS, IRISA
Inria Rennes - Bretagne Atlantique
Campus universitaire de Beaulieu
35042 Rennes cedex, France

Website: subhadeep.cf
E-mail: subhadeep.sarkar@...552... ; subhadeepsarkarybs@...54...
Phone: +33 2 99 84 73 52 



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