Re: [lxc-users] not able to run glxdemo from inside lxc container
I was able to resolve this issue.
I had to add nvidia device nodes in the lxc container config file.
lxc.cgroup.devices.allow = c 195:* rwm
lxc.mount.entry = /dev/nvidia0 dev/nvidia0 none bind,optional,create=file
lxc.mount.entry = /dev/nvidiactl dev/nvidiactl none bind,optional,create=file
lxc.mount.entry = /dev/nvidia-modeset dev/nvidia-modeset none
bind,optional,create=file
On Wed, Nov 2, 2016 at 5:00 AM, <lxc-users-requ...@lists.linuxcontainers.org
> wrote:
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> Today's Topics:
>
> 1. not able to run glxdemo from inside lxc container (manik sheeri)
> 2. Error in playing a sound using ALSA inside LXC container
> (manik sheeri)
>
>
> -- Forwarded message --
> From: manik sheeri <sheeri185adi...@gmail.com>
> To: lxc-users@lists.linuxcontainers.org
> Cc:
> Date: Tue, 1 Nov 2016 14:09:06 -0700
> Subject: [lxc-users] not able to run glxdemo from inside lxc container
>
> I have created lxc container of our custom toolchain that has many
> packages. Related to graphics, I have installed nvidia 367.27 driver
> using the nvidia installer inside this container(called mk7icontainer)
>
> The nvidia driver libraries/binaries are installed at path
> /usr/share/nvidia path inside this container.
>
> I have also installed mesa installed in path /usr inside container.
>
> I compiled the glxdemo source code using the command as:
>
> gcc -g glxdemo.c -Wl,--rpath-link,/usr/share/nvidia/lib
> -Wl,-rpath,/usr/share/nvidia/lib \
> -Wl,--rpath-link,/usr/share/nvidia/lib/tls
> -Wl,-rpath,/usr/share/nvidia/lib/tls \
> -Wl,--rpath-link,/usr/share/nvidia/lib/vdpau
> -Wl,-rpath,/usr/share/nvidia/lib/vdpau \
> -Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules
> -Wl,-rpath,/usr/share/nvidia/lib/xorg/modules \
> -Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules/drivers
> -Wl,-rpath,/usr/share/nvidia/lib/xorg/modules/drivers \
> -Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules/extensions
> -Wl,-rpath,/usr/share/nvidia/lib/xorg/modules/extensions -lX11 -lGL -lGLU
> -lglut -lm -o glxdemo
>
>
> Inside the container, I have
>
> DISPLAY=":0"
> XAUTHORITY=/root/.Xauthority
>
> I am starting the bash in the container using below command:
>
> sudo lxc-attach -n mk7icontainer --clear-env -- /usr/bin/bash
>
> My host machine is running Ubuntu 16.0.4 and I installed the same nvidia
> 367.27 driver using its installer. It is running fine. I can even run
> glxdemo on host machine without any issues.
>
> However, when I try to run glxdemo inside the container ( compiled using
> above mentioned command), I get the following error:
>
> X Error of failed request: BadValue (integer parameter out of range for
> operation)
> Major opcode of failed request: 154 (GLX)
> Minor opcode of failed request: 3 (X_GLXCreateContext)
> Value in failed request: 0x0
> Serial number of failed request: 24
> Current serial number in output stream: 25
>
> anyone got any idea what is wrong here?
>
>
>
> Source code for glxdemo is :
>
> #include
> #include
> #include
> #include
> static void redraw( Display *dpy, Window w )
> {
>printf("Redraw event\n");
>glClear( GL_COLOR_BUFFER_BIT );
>
>glColor3f( 1.0, 1.0, 0.0 );
>glRectf( -0.8, -0.8, 0.8, 0.8 );
>glXSwapBuffers( dpy, w );
> }
>
> static void resize( unsigned int width, unsigned int height )
> {
>printf("Resize event\n");
>glViewport( 0, 0, width, height );
>glMatrixMode( GL_PROJECTION );
>glLoadIdentity();
>glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
> }
>
> static Window make_rgb_db_window( Display *dpy,
> unsigned int width, unsigned int height )
> {
>int attrib[] = { GLX_RGBA,
> GLX_RED_SIZE, 1,
> GLX_GREEN_SIZE, 1,
> GLX_BLUE_SIZE, 1,
> GLX_DOUBLEBUFFER,
> None };
>int scrnum;
>XSetWindowAttributes attr;
>unsigned long mask;
>Window root;
>Window win;
>GLXContext ctx;
>XVisualInfo *visin
[lxc-users] Error in playing a sound using ALSA inside LXC container
I am using host Ubuntu 16.0.4 system to run my lxc container. I uninstalled pulseaudio as I wanted to use ALSA directly. After uninstalling pulseaudio from the host machine, I was able to play sounds using the command like one below(on host machine): aplay /usr/share/sounds/alsa/Rear_Right.wav Inside the lxc container, I have installed alsa libs and alsa utils. When I use the same command as above inside the container, I get the following errors: ALSA lib confmisc.c:768:(parse_card) cannot find card '0' ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:654: audio open error: No such file or directory The sound devices inside container are: bash-4.2# ls -al /dev/snd/* crw-rw 1 root 29 116, 5 Nov 1 17:21 /dev/snd/controlC0 crw-rw 1 root 29 116, 2 Nov 1 17:21 /dev/snd/controlC1 crw-rw 1 root 29 116, 10 Nov 1 17:21 /dev/snd/controlC2 crw-rw 1 root 29 116, 9 Nov 1 17:21 /dev/snd/hwC0D0 crw-rw 1 root 29 116, 13 Nov 1 17:21 /dev/snd/hwC2D0 crw-rw 1 root 29 116, 6 Nov 1 17:21 /dev/snd/pcmC0D3p crw-rw 1 root 29 116, 7 Nov 1 17:21 /dev/snd/pcmC0D7p crw-rw 1 root 29 116, 8 Nov 1 17:21 /dev/snd/pcmC0D8p crw-rw 1 root 29 116, 4 Nov 1 17:21 /dev/snd/pcmC1D0c crw-rw 1 root 29 116, 3 Nov 1 17:27 /dev/snd/pcmC1D0p crw-rw 1 root 29 116, 11 Nov 1 17:21 /dev/snd/pcmC2D3p crw-rw 1 root 29 116, 12 Nov 1 17:21 /dev/snd/pcmC2D7p crw-rw 1 root 29 116, 1 Nov 1 17:21 /dev/snd/seq crw-rw 1 root 29 116, 33 Nov 1 17:21 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Nov 1 17:21 . drwxr-xr-x 4 root root 360 Nov 1 17:21 .. lrwxrwxrwx 1 root root 12 Nov 1 17:21 usb-126c_4.1_amplifier-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Nov 1 17:21 . drwxr-xr-x 4 root root 360 Nov 1 17:21 .. lrwxrwxrwx 1 root root 12 Nov 1 17:21 pci-:00:03.0 -> ../controlC0 lrwxrwxrwx 1 root root 12 Nov 1 17:21 pci-:00:14.0-usb-0:5:1.0 -> ../controlC1 lrwxrwxrwx 1 root root 12 Nov 1 17:21 pci-:01:00.1 -> ../controlC2 ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] not able to run glxdemo from inside lxc container
I have created lxc container of our custom toolchain that has many
packages. Related to graphics, I have installed nvidia 367.27 driver using
the nvidia installer inside this container(called mk7icontainer)
The nvidia driver libraries/binaries are installed at path
/usr/share/nvidia path
inside this container.
I have also installed mesa installed in path /usr inside container.
I compiled the glxdemo source code using the command as:
gcc -g glxdemo.c -Wl,--rpath-link,/usr/share/nvidia/lib
-Wl,-rpath,/usr/share/nvidia/lib \
-Wl,--rpath-link,/usr/share/nvidia/lib/tls
-Wl,-rpath,/usr/share/nvidia/lib/tls \
-Wl,--rpath-link,/usr/share/nvidia/lib/vdpau
-Wl,-rpath,/usr/share/nvidia/lib/vdpau \
-Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules
-Wl,-rpath,/usr/share/nvidia/lib/xorg/modules \
-Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules/drivers
-Wl,-rpath,/usr/share/nvidia/lib/xorg/modules/drivers \
-Wl,--rpath-link,/usr/share/nvidia/lib/xorg/modules/extensions
-Wl,-rpath,/usr/share/nvidia/lib/xorg/modules/extensions -lX11 -lGL
-lGLU -lglut -lm -o glxdemo
Inside the container, I have
DISPLAY=":0"
XAUTHORITY=/root/.Xauthority
I am starting the bash in the container using below command:
sudo lxc-attach -n mk7icontainer --clear-env -- /usr/bin/bash
My host machine is running Ubuntu 16.0.4 and I installed the same nvidia
367.27 driver using its installer. It is running fine. I can even run
glxdemo on host machine without any issues.
However, when I try to run glxdemo inside the container ( compiled using
above mentioned command), I get the following error:
X Error of failed request: BadValue (integer parameter out of range
for operation)
Major opcode of failed request: 154 (GLX)
Minor opcode of failed request: 3 (X_GLXCreateContext)
Value in failed request: 0x0
Serial number of failed request: 24
Current serial number in output stream: 25
anyone got any idea what is wrong here?
Source code for glxdemo is :
#include
#include
#include
#include
static void redraw( Display *dpy, Window w )
{
printf("Redraw event\n");
glClear( GL_COLOR_BUFFER_BIT );
glColor3f( 1.0, 1.0, 0.0 );
glRectf( -0.8, -0.8, 0.8, 0.8 );
glXSwapBuffers( dpy, w );
}
static void resize( unsigned int width, unsigned int height )
{
printf("Resize event\n");
glViewport( 0, 0, width, height );
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
}
static Window make_rgb_db_window( Display *dpy,
unsigned int width, unsigned int height )
{
int attrib[] = { GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
Window win;
GLXContext ctx;
XVisualInfo *visinfo;
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
visinfo = glXChooseVisual( dpy, scrnum, attrib );
if (!visinfo) {
printf("Error: couldn't get an RGB, Double-buffered visual\n");
exit(1);
}
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow( dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, );
printf("\n XCreateWindow successfull \n");
ctx = glXCreateContext( dpy, visinfo, NULL, True );
if (!ctx) {
printf("Error: glXCreateContext failed\n");
exit(1);
}
printf("\n glXCreateContext successfull \n");
glXMakeCurrent( dpy, win, ctx );
return win;
}
static void event_loop( Display *dpy )
{
XEvent event;
while (1) {
XNextEvent( dpy, );
switch (event.type) {
case Expose:
redraw( dpy, event.xany.window );
break;
case ConfigureNotify:
resize( event.xconfigure.width, event.xconfigure.height );
break;
}
}
}
int main( int argc, char *argv[] )
{
Display *dpy;
Window win;
dpy = XOpenDisplay(NULL);
if(!dpy)
{
printf("\nError in XOpenDisplay\n");
}
printf("\nXOpenDisplay successfull\n");
win = make_rgb_db_window( dpy, 300, 300 );
printf("\nmake_rgb_db_window successfull \n");
glShadeModel( GL_FLAT );
glClearColor( 0.5, 0.5, 0.5, 1.0 );
XMapWindow( dpy, win );
event_loop( dpy );
return 0;
}
___
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[lxc-users] Custom lxc container hangs in lxc-console
I am trying to run my LFS (Linux from scratch) inside a container. I
created LFS from its stable version book and using that as a rootfs for my
container.
I created the LFS rootfs at /home/manik/toolchain/lfs . I am using this as
a rootfs source for my container. I will copy the directories inside my
container rootfs from this location.
Below is the template that I created from busybox template of lxc package.I
named this tempalate as lxc-lfs and copied into the directory
/usr/share/lxc/templates
#!/bin/bash
LXC_MAPPED_UID=
LXC_MAPPED_GID=
# Make sure the usual locations are in PATH
export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
am_in_userns() {
[ -e /proc/self/uid_map ] || { echo no; return; }
[ "$(wc -l /proc/self/uid_map | awk '{ print $1 }')" -eq 1 ] || {
echo yes; return; }
line=$(awk '{ print $1 " " $2 " " $3 }' /proc/self/uid_map)
[ "$line" = "0 0 4294967295" ] && { echo no; return; }
echo yes
}
configure_lfs() {
rootfs=$1
name=$2
lfsroot=$3
res=0
tree=( \
bin \
boot \
dev \
etc \
home \
lib \
media \
mnt \
opt \
proc \
root \
run \
sbin \
srv \
sys \
tmp \
usr \
var )
for d in ${tree[@]}
do
mkdir -p $rootfs/$d
cp -r --preserve $lfsroot/$d/. $rootfs/$d
done
pushd $rootfs/dev > /dev/null || return 1
mknod -m 666 tty c 5 0 || res=1
mknod -m 666 console c 5 1 || res=1
mknod -m 666 tty0 c 4 0 || res=1
mknod -m 666 tty1 c 4 0 || res=1
mknod -m 666 tty5 c 4 0 || res=1
mknod -m 600 ram0 b 1 0 || res=1
mknod -m 666 null c 1 3 || res=1
mknod -m 666 zero c 1 5 || res=1
mknod -m 666 urandom c 1 9 || res=1
mkdir pts || res=1
popd > /dev/null
cat <> $rootfs/etc/init.d/rcS
#!/bin/sh
/bin/syslogd
/bin/mount -a
EOF
# executable
chmod 744 $rootfs/etc/init.d/rcS || res=1
# launch rcS first then make a console available
# and propose a shell on the tty, the last one is
# not needed
cat <> $rootfs/etc/inittab
::sysinit:/etc/init.d/rcS
tty1::respawn:/sbin/agetty -L tty1 115200 vt100
console::askfirst:/bin/sh
EOF
# writable and readable for other
chmod 644 $rootfs/etc/inittab || res=1
# /etc/fstab must exist for "mount -a"
touch $rootfs/etc/fstab || res=1
return $res
}
copy_configuration() {
path=$1
rootfs=$2
name=$3
grep -q "^lxc.rootfs" $path/config 2>/dev/null || echo "lxc.rootfs
= $rootfs" >> $path/config
cat <> $path/config
lxc.haltsignal = SIGUSR1
lxc.rebootsignal = SIGTERM
lxc.utsname = $name
lxc.tty = 1
lxc.pts = 1
lxc.cap.drop = sys_module mac_admin mac_override sys_time
# When using LXC with apparmor, uncomment the next line to run unconfined:
#lxc.aa_profile = unconfined
lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed
lxc.mount.entry = shm /dev/shm tmpfs defaults 0 0
EOF
echo "lxc.mount.entry = /sys/kernel/security sys/kernel/security none
ro,bind,optional 0 0" >>$path/config
return 0
}
in_userns=0
[ $(am_in_userns) = "yes" ] && in_userns=1
usage()
{
cat < -n|--name=
--lfsroot=[Mandatory option]
EOF
return 0
}
options=$(getopt -o hp:n: -l help,rootfs:,path:,name:,lfsroot: -- "$@")
if [ $? -ne 0 ]; then
usage $(basename $0)
exit 1
fi
eval set -- "$options"
while true
do
case "$1" in
-h|--help) usage $0 && exit 0;;
-p|--path) path=$2; shift 2;;
--rootfs) rootfs=$2; shift 2;;
--lfsroot) lfsroot=$2; shift 2;;
-n|--name) name=$2; shift 2;;
--) shift 1; break ;;
*) break ;;
esac
done
if [ -z "$lfsroot" ]; then
echo "--lfsroot argument is required."
exit 1
fi
if [ "$(id -u)" != "0" ]; then
echo "This script should be run as 'root'"
exit 1
fi
if [ -z "$path" ]; then
echo "'path' parameter is required"
exit 1
fi
# detect rootfs
config="$path/config"
rootfs="$path/rootfs"
configure_lfs $rootfs $name $lfsroot
if [ $? -ne 0 ]; then
echo "failed to configure LFS's rootfs"
exit 1
fi
copy_configuration $path $rootfs $name
if [ $? -ne 0 ]; then
echo "failed to write lfs-lxc configuration file"
exit 1
fi
I used the below command to create my container:
sudo lxc-create -t lfs -n lfs-lxc-container --lxcpath=/home/manik/toolchain
I can successfully use the following command:
sudo lxc-attach -n lfs-lxc-container --lxcpath=/home/manik/toolchain
I get root bash prompt which is understandable as the man pages for
lxc-attach says to run the shell of the user if no specific command is
given.
However, lxc-console command hangs. I am triggering the command like:
sudo lxc-console -n lfs-lxc-container --lxcpath=/home/manik/toolchain
Using the above lxc-attach since I get the bash prompt, I executed the
command:
bash-4.3# ps -efa
UIDPID PPID C STIME TTY TIME CMD
root 1 0 0 22:37 ?00:00:00 init boot
root29 0 0 23:27 ?00:00:00 /bin/bash
root3029 0 23:27 ?00:00:00 ps -efa
Looks like getty is not working/running.
Anyone got any idea ? I am
[lxc-users] How to create my own container rootfs
Hi, We have a gaming application that up until now we were running on Old Suse distribution with our custom toolchain. We are planning to migrate to Ubuntu for development distribution/environment. Also, we are planning to run our games in lxc container. I was able to run our games with Ubuntu lxc-template i.e. privileged lxc container created from lxc-ubuntu template. Now, I want to build our custom toolchain and create the rootfs from that custom toolchain and then run that container. I would like to know how to create this rootfs with my custom toolchain. The idea is to enable our gaming studios to download our toolchain container and run games inside it. thanks ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] slow game graphics in lxc container
I got it fixed. First, we have to make sure that the user inside lxc container belongs to the group video. To do this, do the following: ( assuming user is named ubuntu ) sudo usermod -a -G video ubuntu Then, add the following in the container config file i.e. /var/lib/lxc/mk7i_container/config. My container name is mk7i_container. #Video DRI lxc.cgroup.devices.allow = c 226:* rwm ##/dev/dri mounts lxc.mount.entry = /dev/dri dev/dri none bind,optional,create=dir Now, restart the container. And the graphics should work fine. > > -- Forwarded message -- > From: manik sheeri <sheeri185adi...@gmail.com> > To: lxc-users@lists.linuxcontainers.org > Cc: > Date: Thu, 22 Sep 2016 14:53:59 -0700 > Subject: [lxc-users] slow game graphics in lxc container > I have a privileged `lxc` container running on Ubuntu 16.0.4 LTS. > > I have noticed that the graphics of our game are very sluggish in > container compared to when running on host directly. > > Could anyone point a reference as to what could be the cause ? > > So I ran `glxgears` application inside the container. Though the > application ran fine but I saw the following info + errors on console: > > libGL error: failed to open drm device: Permission denied > libGL error: failed to load driver: nouveau > 4057 frames in 5.0 seconds = 811.356 FPS > 4238 frames in 5.0 seconds = 847.557 FPS > 4251 frames in 5.0 seconds = 850.081 FPS > 4254 frames in 5.0 seconds = 850.743 FPS > 4253 frames in 5.0 seconds = 850.431 FPS > 4255 frames in 5.0 seconds = 850.949 FPS > 4253 frames in 5.0 seconds = 850.450 FPS > 4254 frames in 5.0 seconds = 850.733 FPS > 4250 frames in 5.0 seconds = 849.960 FPS > 4247 frames in 5.0 seconds = 849.254 FPS > 4246 frames in 5.0 seconds = 849.129 FPS > > > ___ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users > ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] slow game graphics in lxc container
I have a privileged `lxc` container running on Ubuntu 16.0.4 LTS. I have noticed that the graphics of our game are very sluggish in container compared to when running on host directly. Could anyone point a reference as to what could be the cause ? So I ran `glxgears` application inside the container. Though the application ran fine but I saw the following info + errors on console: libGL error: failed to open drm device: Permission denied libGL error: failed to load driver: nouveau 4057 frames in 5.0 seconds = 811.356 FPS 4238 frames in 5.0 seconds = 847.557 FPS 4251 frames in 5.0 seconds = 850.081 FPS 4254 frames in 5.0 seconds = 850.743 FPS 4253 frames in 5.0 seconds = 850.431 FPS 4255 frames in 5.0 seconds = 850.949 FPS 4253 frames in 5.0 seconds = 850.450 FPS 4254 frames in 5.0 seconds = 850.733 FPS 4250 frames in 5.0 seconds = 849.960 FPS 4247 frames in 5.0 seconds = 849.254 FPS 4246 frames in 5.0 seconds = 849.129 FPS ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] can't run “glxgears” in root on lxc 2.0 container
Hi, Pardon me if the syntax of the email is incorrect. I am a newbie here. Hope to learn from you experts. I am facing some issues running glxgears app in root mode on lxc2.0 privileged container. I am running lxc2.0 container(privileged) on Ubuntu 16.0.4LTS 32-bit. Inside the container I installed `mesa-utils` that has the `glxgears` app. my container config file `/var/lib/lxc/mk7i_container/config` is: Template used to create this container: /usr/share/lxc/templates/lxc-download # Parameters passed to the template: --no-validate # For additional config options, please look at lxc.container.conf(5) # Uncomment the following line to support nesting containers: #lxc.include = /usr/share/lxc/config/nesting.conf # (Be aware this has security implications) # Distribution configuration lxc.include = /usr/share/lxc/config/ubuntu.common.conf lxc.arch = x86 lxc.cgroup.devices.allow = c 1:1 rwm lxc.cgroup.devices.allow = c 130:* rwm lxc.cgroup.devices.allow = c 124:* rwm lxc.cgroup.devices.allow = c 122:* rwm lxc.cgroup.devices.allow = c 123:* rwm lxc.cgroup.devices.allow = c 126:* rwm lxc.cgroup.devices.allow = c 127:0 rwm lxc.cgroup.devices.allow = c 120:0 rwm # Container specific configuration lxc.rootfs = /var/lib/lxc/mk7i_container/rootfs lxc.rootfs.backend = dir lxc.utsname = mk7i_container # Network configuration lxc.network.type = veth lxc.network.link = lxcbr0 lxc.network.flags = up lxc.network.hwaddr = 00:16:3e:c8:fd:1e #mounts for XServer DISPLAY lxc.mount.entry = /dev/dri dev/dri none bind,optional,create=dir lxc.mount.entry = /tmp/.X11-unix tmp/.X11-unix none bind,optional,create=dir lxc.mount.entry = /dev/video0 dev/video0 none bind,optional,create=file To log in into the container as user 'Ubuntu', I am using the following command: sudo lxc-console -n mk7i_container After login, I set the `DISPLAY` env variable as: export DISPLAY=":0.0" And run `glxgears` and it runs fine. I can see the Xwindow with gears moving in it. However, after that I enter root mode via `sudo su` command. And try to run glxgears, but I get the following error: No protocol specified Error: couldn't open display :0.0 Not sure why this error is coming. If user `ubuntu` runs x apps fine , I expected root to do the same. Anyone know what's wrong here ? Thanks ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] not able to read-write to eeprom inside lxc container
Hi, I am using lxc container. and I have an eeprom on my hardware board connected via i2c adaptor. my gaming application uses this eeprom to store some settings. In my sysfs, the eeprom nodes are: /sys/devices/platform/ocores-i2c.0/i2c-23/23-0054/eeprom /sys/devices/platform/ocores-i2c.0/i2c-23/23-0056/eeprom Since the sysfs is dynamic, so I created a sym link to these eeproms at : /dev/kmcwire/eeprom0 -> /sys/devices/platform/ocores-i2c.0/i2c-23/23-0054/eeprom /dev/kmcwire/eeprom1 -> /sys/devices/platform/ocores-i2c.0/i2c-23/23-0056/eeprom now, in my host I used to read/write to nodes "/dev/kmcwire/eeprom*" Inside the container, I am not able to do that. I get 'Permission Denied' error. In my config file, I made some changes: */usr/share/lxc/config/common.conf* I changed "lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed" to "lxc.mount.auto = cgroup:mixed proc:mixed *sys:rw*" to mount sysfs in read-write mode. */var/lib/lxc/my_container/config* I added the line "lxc.mount.entry = /dev/kmcwire dev/kmcwire none bind,optional,create=dir" Can anyone help me point out the issue here ? ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
