Hello,
I'm trying to run an X server inside a container. I was able to
achieve this with lxc-tools by setting the option lxc.tty = 4 that
allows access to 4 tty. Now I want to use libvirt because my final goal
is to create a container with GPU capabilities from Openstack (that
uses libvirt).
My first idea was to create a /dev/tty2 (because /dev/tty1 already
exist) and allow access by echoing 'c 4:2 rwm' in devices.allow. But I
don't have the right if I am in the container. So I tried to create the
tty2 in the device tree of the container but from the host. It works
but I don't see the tty2 device in the container. In facts, things that
are seeing in the /dev in container are not the same that things that
are seen from outside.
From the container:
root@b017311-ux:~# ls /dev/
console fd full log null ptmx pts random shm stderr stdin
stdout tty1 urandom xconsole zero
From the 'real' world:
root@b017311-ux:/home/thouveng/virtualization/lxc/lxcvm1/rootfs/dev# ls
console fd kmem loop1 loop3 loop5 loop7 null ptmx ram
ram1 ram11 ram13 ram15 ram2 ram4 ram6 ram8 random stderr
stdout tty0 urandom zero
core full loop0 loop2 loop4 loop6 mem port pts ram0
ram10 ram12 ram14 ram16 ram3 ram5 ram7 ram9 shm stdin tty
tty2 xconsole
So any help to allow the access to tty from the container to run an X
server would be welcome. I want to run an X server because I want to do
remote rendering with the GPU, not only computation. The only solution
I found on the web works with lxc-tools.
Best regards,
Guillaume
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