OpenVZ Console: Difference between revisions
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{{Note|Article about old Proxmox VE releases up to 3.x}} | |||
But as most OpenVZ templates have disabled terminals, you need to enable it first. This article describes | == Introduction == | ||
Beginning with Proxmox VE 2.2, we introduced a new console view (with login capability). Especially for beginners it is not that easy to understand and manage containers but with the new console this is big step forward. OpenVZ and KVM console now look quite similar. | |||
But as most OpenVZ templates have disabled terminals, you need to enable it first. This article describes the changes needed for an already running OpenVZ container. | |||
'''Note:''' | '''Note:''' | ||
All Debian templates created with latest [[Debian Appliance Builder]] got this changes | All Debian templates created with latest [[Debian Appliance Builder]] have already got this set of changes, just download them via GUI to your Proxmox VE storage (Debian 6 and 7 templates are up2date, 32 and 64 bit) | ||
== Debian 5,6,7 == | |||
This will also work in debian8 if you use sysv-init instead of systemd | |||
=== Editing the config file via the host === | |||
You can do this on the host without entering CT (but the CT must be running). Just log in to the Proxmox VE host and: | |||
edit all inittabs under /var/lib/vz/root/ : | |||
<pre> | <pre> | ||
nano /var/lib/vz/root/*/etc/inittab | |||
# add this | # add this | ||
:2345:respawn:/sbin/getty 38400 tty1 | 1:2345:respawn:/sbin/getty 38400 tty1 | ||
</pre> | </pre> | ||
=== Editing the configuration file inside the container === | |||
== | |||
[[Image:Screen-Debian-5-OpenVZ-console.png|thumb]] | [[Image:Screen-Debian-5-OpenVZ-console.png|thumb]] | ||
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | ||
Line 44: | Line 49: | ||
Save the changes and shutdown/start the container via Console. | Save the changes and shutdown/start the container via Console. | ||
== | == Ubuntu == | ||
=== Ubuntu 10.04, 12.04, 14.04 === | |||
== | [[Image:Screen-Ubuntu-12.04-OpenVZ-console.png|thumb]] | ||
Works for Ubuntu 16.04 if [http://without-systemd.org/wiki/index.php/How_to_remove_systemd_from_an_Ubuntu_Xenial_installation ''systemd'' is replaced with ''SysV init'']. | |||
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | ||
Line 58: | Line 61: | ||
proxmox-ve:~# vzlist | proxmox-ve:~# vzlist | ||
CTID NPROC STATUS IP_ADDR HOSTNAME | CTID NPROC STATUS IP_ADDR HOSTNAME | ||
108 23 running 192.168.9.20 ubuntu- | 108 23 running 192.168.9.20 ubuntu-1404.proxmox.com | ||
109 18 running 192.168.9.21 centos63-64.proxmox.com | 109 18 running 192.168.9.21 centos63-64.proxmox.com | ||
111 15 running 192.168.9.23 centos5-64.proxmox.com | 111 15 running 192.168.9.23 centos5-64.proxmox.com | ||
Line 68: | Line 71: | ||
proxmox-ve:~# vzctl enter 108 | proxmox-ve:~# vzctl enter 108 | ||
root@ubuntu- | root@ubuntu-1404:/# nano /etc/init/tty1.conf | ||
Change/Create the file that it looks exactly like this: | Change/Create the file that it looks exactly like this: | ||
Line 86: | Line 89: | ||
Save the changes and shutdown/start the container via Console. | Save the changes and shutdown/start the container via Console. | ||
== | == Centos == | ||
=== Centos 5 / 7 === | |||
= | |||
== Centos 5 == | |||
[[Image:Screen-Centos-5-OpenVZ-console.png|thumb]] | [[Image:Screen-Centos-5-OpenVZ-console.png|thumb]] | ||
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | ||
Line 114: | Line 114: | ||
Save the changes and shutdown/start the container via Console. | Save the changes and shutdown/start the container via Console. | ||
== Centos 6 == | === Centos 6 === | ||
[[Image:Screen-Centos-6-OpenVZ-console.png|thumb]] | [[Image:Screen-Centos-6-OpenVZ-console.png|thumb]] | ||
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container: | ||
Line 145: | Line 145: | ||
exec /sbin/agetty -8 tty1 38400 | exec /sbin/agetty -8 tty1 38400 | ||
Either run "start tty" without rebooting the container, or save the changes and shutdown/start the container via Console. | |||
=Troubleshooting= | |||
If you still want to use the previous method (vzctl enter CTID) you can open the host | == Alpine Linux == | ||
=== Alpine v3.5.1 === | |||
[[Image:Screen-AlpineLinux-3.5.1-OpenVZ-console.png|thumb]] | |||
The <tt>/etc/inittab</tt> should have: | |||
<source lang="bash"> | |||
# START ------------------------------------- | |||
::sysinit:/sbin/openrc sysinit | |||
::sysinit:/sbin/openrc boot | |||
::wait:/sbin/openrc default | |||
# Set up a couple of getty's | |||
#tty1::respawn:/sbin/getty 38400 tty1 | |||
#tty2::respawn:/sbin/getty 38400 tty2 | |||
#tty3::respawn:/sbin/getty 38400 tty3 | |||
#tty4::respawn:/sbin/getty 38400 tty4 | |||
#tty5::respawn:/sbin/getty 38400 tty5 | |||
#tty6::respawn:/sbin/getty 38400 tty6 | |||
# Put a getty on the serial port | |||
#ttyS0::respawn:/sbin/getty -L ttyS0 115200 vt100 | |||
# Stuff to do for the 3-finger salute | |||
::ctrlaltdel:/sbin/reboot | |||
# Stuff to do before rebooting | |||
::shutdown:/sbin/openrc shutdown | |||
1:2345:respawn:/sbin/getty 38400 console | |||
2:2345:respawn:/sbin/getty 38400 tty2 | |||
# END --------------------------------------- | |||
</source> | |||
Note that the last 2 lines are not commented out. On reboot, this will bloat the file <tt>/var/log/messages</tt> with errors like: | |||
<pre> | |||
Feb 6 17:47:38 test daemon.info init: can't open /dev/1: No such file or directory | |||
Feb 6 17:47:38 test daemon.info init: can't open /dev/2: No such file or directory | |||
Feb 6 17:47:39 test daemon.info init: process '/sbin/getty 38400 console' (pid 770) exited. Scheduling for restart. | |||
Feb 6 17:47:39 test daemon.info init: process '/sbin/getty 38400 tty2' (pid 771) exited. Scheduling for restart. | |||
</pre> | |||
This is [https://lennartb.home.xs4all.nl/rescuedisk/node7.html remedied] with: | |||
<source lang="bash"> | |||
mknod /dev/1 c 4 1 | |||
mknod /dev/2 c 4 2 | |||
mknod /dev/tty2 c 4 2 | |||
rm /dev/tty1 | |||
> /var/log/messages | |||
</source> | |||
On reboot, and a NoVNC login and logout will populate the <tt>/var/log/messages</tt> with just: | |||
<pre> | |||
Feb 6 17:47:39 test daemon.info init: starting pid 774, tty '/dev/1': '/sbin/getty 38400 console' | |||
Feb 6 17:47:50 test daemon.info init: starting pid 797, tty '/dev/2': '/sbin/getty 38400 tty2' | |||
Feb 6 17:51:50 test auth.info login[1016]: root login on 'console' | |||
Feb 6 17:51:54 test daemon.info init: process '/sbin/getty 38400 console' (pid 774) exited. Scheduling for restart. | |||
Feb 6 17:51:54 test daemon.info init: starting pid 1022, tty '/dev/1': '/sbin/getty 38400 console' | |||
</pre> | |||
The above assumes that the last line of <tt>/etc/vz/dists/[https://src.openvz.org/projects/OVZL/repos/vzctl/browse/etc/dists/alpine.conf?at=vzctl-4.9 alpine.conf]</tt> is: | |||
<pre>SET_CONSOLE=set_console.sh</pre> | |||
where the <tt>/etc/vz/dists/scripts/[http://code.metager.de/source/xref/openvz/vzctl/etc/dists/scripts/set_console.sh set_console.sh]</tt> has: | |||
<source lang="bash"> | |||
#!/bin/sh | |||
# Copyright (C) 2012-2014, Parallels, Inc. All rights reserved. | |||
# | |||
# This program is free software; you can redistribute it and/or modify | |||
# it under the terms of the GNU General Public License as published by | |||
# the Free Software Foundation; either version 2 of the License, or | |||
# (at your option) any later version. | |||
# | |||
# This program is distributed in the hope that it will be useful, | |||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
# GNU General Public License for more details. | |||
# | |||
# You should have received a copy of the GNU General Public License | |||
# along with this program; if not, write to the Free Software | |||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
# | |||
# | |||
# Configures getty in a container on /dev/tty1 (aka /dev/console) | |||
# and /dev/tty2. Invoked during vzctl start. Needed for vzctl console. | |||
if [ -x /lib/systemd/systemd ]; then | |||
SYSTEMD_DIR=/lib/systemd/system | |||
else | |||
SYSTEMD_DIR=/usr/lib/systemd/system | |||
fi | |||
ETC_SYSTEMD_DIR="/etc/systemd/system" | |||
SYSTEMD_GETTY_SERVICE=$SYSTEMD_DIR/getty@.service | |||
create_dev() | |||
{ | |||
local dev=$1 | |||
local major=$2 | |||
local minor=$3 | |||
if [ ! -c /dev/$dev -o -L /dev/$dev ]; then | |||
rm -f /dev/$dev 2>/dev/null | |||
mknod /dev/$dev c $major $minor | |||
fi | |||
} | |||
fix_shell_console() | |||
{ | |||
[ -f $SYSTEMD_DIR/console-getty.service ] && | |||
return 0 | |||
echo '# This file is part of systemd. | |||
# | |||
# systemd is free software; you can redistribute it and/or modify it | |||
# under the terms of the GNU General Public License as published by | |||
# the Free Software Foundation; either version 2 of the License, or | |||
# (at your option) any later version. | |||
[Unit] | |||
Description=Console Shell | |||
After=systemd-user-sessions.service plymouth-quit-wait.service | |||
Before=getty.target | |||
[Service] | |||
Environment=HOME=/root | |||
WorkingDirectory=/root | |||
ExecStart=-/sbin/agetty --noclear -s console 115200,38400,9600 | |||
Restart=always | |||
RestartSec=0 | |||
UtmpIdentifier=cons | |||
TTYPath=/dev/console | |||
TTYReset=yes | |||
TTYVHangup=yes | |||
StandardInput=tty-force | |||
StandardOutput=inherit | |||
StandardError=inherit | |||
KillMode=process | |||
# Bash ignores SIGTERM, so we send SIGHUP instead, to ensure that bash | |||
# terminates cleanly. | |||
KillSignal=SIGHUP | |||
[Install] | |||
WantedBy=getty.target' > $SYSTEMD_DIR/console-getty.service | |||
rm -f $SYSTEMD_DIR/console-shell.service | |||
} | |||
setup_systemd_console() | |||
{ | |||
if grep -q -e 'ConditionPathExists=!/run/openvz' \ | |||
-e 'ConditionPathExists=!/proc/vz' $SYSTEMD_GETTY_SERVICE 2>/dev/null; then | |||
sed -i -e '/ConditionPathExists=!\/run\/openvz/d' \ | |||
-e '/ConditionPathExists=!\/proc\/vz/d' $SYSTEMD_GETTY_SERVICE | |||
fi | |||
[ -L $SYSTEMD_DIR/getty.target.wants/getty@tty1.service ] && \ | |||
rm -f $SYSTEMD_DIR/getty.target.wants/getty@tty1.service | |||
[ -L $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty1.service ] && \ | |||
rm -f $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty1.service | |||
[ -L $SYSTEMD_DIR/getty.target.wants/getty@tty2.service ] || \ | |||
ln -sf $SYSTEMD_DIR/getty@.service $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty2.service | |||
[ -f $SYSTEMD_DIR/console-shell.service ] && | |||
fix_shell_console | |||
} | |||
setup_upstart_console() | |||
{ | |||
local file=/etc/init/$1.conf | |||
local getty | |||
if [ -x /sbin/mingetty ]; then | |||
getty='exec /sbin/mingetty' | |||
elif [ -x /sbin/getty ]; then | |||
getty='exec /sbin/getty 38400' | |||
else | |||
echo "Unable to find suitable getty, console setup is skipped" | |||
return 0 | |||
fi | |||
echo "start on stopped rc RUNLEVEL=[2345] | |||
stop on runlevel [!2345] | |||
respawn | |||
$getty $1" > $file | |||
} | |||
setup_upstart_event_console() | |||
{ | |||
local file=/etc/init.d/$1 | |||
local getty | |||
if [ -x /sbin/mingetty ]; then | |||
getty='exec /sbin/mingetty' | |||
elif [ -x /sbin/getty ]; then | |||
getty='exec /sbin/getty 38400' | |||
else | |||
echo "Unable to find suitable getty console setup is skipped" | |||
return 0 | |||
fi | |||
echo "start on stopped rc2 | |||
start on stopped rc3 | |||
start on stopped rc4 | |||
stop on runlevel 0 | |||
stop on runlevel 1 | |||
stop on runlevel 6 | |||
$getty $1" > $file | |||
} | |||
setup_inittab() | |||
{ | |||
local line | |||
local getty1 | |||
local getty2 | |||
if [ -x /sbin/mingetty ]; then | |||
getty1='/sbin/mingetty console' | |||
getty2='/sbin/mingetty tty2' | |||
elif [ -x /sbin/getty ]; then | |||
getty1='/sbin/getty 38400 console' | |||
getty2='/sbin/getty 38400 tty2' | |||
elif [ -x /sbin/agetty ]; then | |||
getty1='/sbin/agetty console 38400' | |||
getty2='/sbin/agetty tty2 38400' | |||
else | |||
echo "Unable to find suitable getty, console setup is skipped" | |||
return 0 | |||
fi | |||
line="1:2345:respawn:$getty1" | |||
if ! grep -q "$line" /etc/inittab; then | |||
echo $line >> /etc/inittab | |||
fi | |||
line="2:2345:respawn:$getty2" | |||
if ! grep -q "$line" /etc/inittab; then | |||
echo $line >> /etc/inittab | |||
fi | |||
} | |||
setup_console() | |||
{ | |||
if [ -f "$SYSTEMD_GETTY_SERVICE" ]; then | |||
setup_systemd_console | |||
elif [ -d '/etc/init' ]; then | |||
setup_upstart_console console | |||
setup_upstart_console tty2 | |||
elif [ -d "/etc/event.d" ]; then | |||
setup_upstart_event_console console | |||
setup_upstart_event_console tty2 | |||
elif [ -f "/etc/inittab" ]; then | |||
setup_inittab | |||
fi | |||
create_dev console 5 1 | |||
create_dev tty2 4 2 | |||
} | |||
setup_console | |||
exit 0 | |||
</source> | |||
== Troubleshooting == | |||
If you still want to use the previous method (vzctl enter CTID) you can open the host '''Shell''' and just type ''vzctl enter CTID'' to manage your containers. | |||
==Java browser plugin== | ==Java browser plugin== | ||
The console is using a Java applet, therefore you need latest Oracle (Sun) Java browser plugin installed and enabled in your browser (Google Chrome and Firefox preferred). If you are on Windows desktop, just go to java.com, if you run a Linux desktop you need to make sure that you run Oracle (Sun) Java plugin instead of the default openjdk. For Debian/Ubuntu based desktops, see [[Java_Console_(Ubuntu)]] | The console is using a Java applet, therefore you need latest Oracle (Sun) Java browser plugin installed and enabled in your browser (Google Chrome and Firefox preferred). If you are on Windows desktop, just go to java.com, if you run a Linux desktop you need to make sure that you run Oracle (Sun) Java plugin instead of the default openjdk. For Debian/Ubuntu based desktops, see [[Java_Console_(Ubuntu)]] | ||
[[Category: | |||
== Modifying your templates == | |||
If you don't want to commit the changes above for every single CT you create, you can simply update the templates accordingly. For this, simply place the file you want to insert into your template (like etc/inittab for debian containers) into your template folder and update the template. | |||
The following is specific to CentOS 6, just replace filename/path and contents with the appropriate contents found above. | |||
<pre>cd [TEMPLATE LOCATION] #Modify this | |||
mkdir -p etc/init | |||
cat <<EOF >etc/init/tty.conf | |||
# This service maintains a getty on tty1 from the point the system is | |||
# started until it is shut down again. | |||
start on stopped rc RUNLEVEL=[2345] | |||
stop on runlevel [!2345] | |||
respawn | |||
exec /sbin/agetty -8 tty1 38400 | |||
EOF | |||
gunzip centos-6-standard_6.3-1_amd64.tar.gz | |||
tar -rf centos-6-standard_6.3-1_amd64.tar etc | |||
gzip centos-6-standard_6.3-1_amd64.tar | |||
rm etc/init/tty.conf | |||
rmdir -p etc/init</pre> | |||
[[Category:Proxmox VE 3.x]] | [[Category: Archive]] |
Latest revision as of 15:28, 18 July 2019
Note: Article about old Proxmox VE releases up to 3.x |
Introduction
Beginning with Proxmox VE 2.2, we introduced a new console view (with login capability). Especially for beginners it is not that easy to understand and manage containers but with the new console this is big step forward. OpenVZ and KVM console now look quite similar.
But as most OpenVZ templates have disabled terminals, you need to enable it first. This article describes the changes needed for an already running OpenVZ container.
Note:
All Debian templates created with latest Debian Appliance Builder have already got this set of changes, just download them via GUI to your Proxmox VE storage (Debian 6 and 7 templates are up2date, 32 and 64 bit)
Debian 5,6,7
This will also work in debian8 if you use sysv-init instead of systemd
Editing the config file via the host
You can do this on the host without entering CT (but the CT must be running). Just log in to the Proxmox VE host and:
edit all inittabs under /var/lib/vz/root/ :
nano /var/lib/vz/root/*/etc/inittab # add this 1:2345:respawn:/sbin/getty 38400 tty1
Editing the configuration file inside the container
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container:
List all running container:
proxmox-ve:~# vzlist CTID NPROC STATUS IP_ADDR HOSTNAME 108 23 running 192.168.9.20 ubuntu-1204.proxmox.com 109 18 running 192.168.9.21 centos63-64.proxmox.com 111 15 running 192.168.9.23 centos5-64.proxmox.com 114 14 running 192.168.9.30 deb6-32.proxmox.com 115 15 running 192.168.9.31 deb7-32.proxmox.com 122 14 running 192.168.9.36 deb5.proxmox.com
Enter the container:
proxmox-ve:~# vzctl enter 122
root@debian:/# nano /etc/inittab
On the bottom of /etc/inittab just add the following line:
1:2345:respawn:/sbin/getty 38400 tty1
Save the changes and shutdown/start the container via Console.
Ubuntu
Ubuntu 10.04, 12.04, 14.04
Works for Ubuntu 16.04 if systemd is replaced with SysV init.
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container:
List all running container:
proxmox-ve:~# vzlist CTID NPROC STATUS IP_ADDR HOSTNAME 108 23 running 192.168.9.20 ubuntu-1404.proxmox.com 109 18 running 192.168.9.21 centos63-64.proxmox.com 111 15 running 192.168.9.23 centos5-64.proxmox.com 114 14 running 192.168.9.30 deb6-32.proxmox.com 115 15 running 192.168.9.31 deb7-32.proxmox.com 122 14 running 192.168.9.36 deb5.proxmox.com
Enter the container:
proxmox-ve:~# vzctl enter 108
root@ubuntu-1404:/# nano /etc/init/tty1.conf
Change/Create the file that it looks exactly like this:
# tty1 - getty # # This service maintains a getty on tty1 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/getty -8 38400 tty1
Save the changes and shutdown/start the container via Console.
Centos
Centos 5 / 7
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container:
List all running container:
proxmox-ve:~# vzlist CTID NPROC STATUS IP_ADDR HOSTNAME 108 23 running 192.168.9.20 ubuntu-1204.proxmox.com 109 18 running 192.168.9.21 centos63-64.proxmox.com 111 15 running 192.168.9.23 centos5-64.proxmox.com 114 14 running 192.168.9.30 deb6-32.proxmox.com 115 15 running 192.168.9.31 deb7-32.proxmox.com 122 14 running 192.168.9.36 deb5.proxmox.com
Enter the container:
proxmox-ve:~# vzctl enter 111
root@centos5-64:/# nano /etc/inittab
On the bottom of /etc/inittab just add the following line:
1:2345:respawn:/sbin/agetty tty1 38400 linux
Save the changes and shutdown/start the container via Console.
Centos 6
Login via SSH (or use the VNC "Shell") to your Proxmox VE host and 'vzctl enter CTID' the container:
List all running container:
proxmox-ve:~# vzlist CTID NPROC STATUS IP_ADDR HOSTNAME 108 23 running 192.168.9.20 ubuntu-1204.proxmox.com 109 18 running 192.168.9.21 centos63-64.proxmox.com 111 15 running 192.168.9.23 centos5-64.proxmox.com 114 14 running 192.168.9.30 deb6-32.proxmox.com 115 15 running 192.168.9.31 deb7-32.proxmox.com 122 14 running 192.168.9.36 deb5.proxmox.com
Enter the container:
proxmox-ve:~# vzctl enter 109
root@centos63-64:/# nano /etc/init/tty.conf
Change/Create the file that it looks exactly like this:
# This service maintains a getty on tty1 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/agetty -8 tty1 38400
Either run "start tty" without rebooting the container, or save the changes and shutdown/start the container via Console.
Alpine Linux
Alpine v3.5.1
The /etc/inittab should have:
# START -------------------------------------
::sysinit:/sbin/openrc sysinit
::sysinit:/sbin/openrc boot
::wait:/sbin/openrc default
# Set up a couple of getty's
#tty1::respawn:/sbin/getty 38400 tty1
#tty2::respawn:/sbin/getty 38400 tty2
#tty3::respawn:/sbin/getty 38400 tty3
#tty4::respawn:/sbin/getty 38400 tty4
#tty5::respawn:/sbin/getty 38400 tty5
#tty6::respawn:/sbin/getty 38400 tty6
# Put a getty on the serial port
#ttyS0::respawn:/sbin/getty -L ttyS0 115200 vt100
# Stuff to do for the 3-finger salute
::ctrlaltdel:/sbin/reboot
# Stuff to do before rebooting
::shutdown:/sbin/openrc shutdown
1:2345:respawn:/sbin/getty 38400 console
2:2345:respawn:/sbin/getty 38400 tty2
# END ---------------------------------------
Note that the last 2 lines are not commented out. On reboot, this will bloat the file /var/log/messages with errors like:
Feb 6 17:47:38 test daemon.info init: can't open /dev/1: No such file or directory Feb 6 17:47:38 test daemon.info init: can't open /dev/2: No such file or directory Feb 6 17:47:39 test daemon.info init: process '/sbin/getty 38400 console' (pid 770) exited. Scheduling for restart. Feb 6 17:47:39 test daemon.info init: process '/sbin/getty 38400 tty2' (pid 771) exited. Scheduling for restart.
This is remedied with:
mknod /dev/1 c 4 1
mknod /dev/2 c 4 2
mknod /dev/tty2 c 4 2
rm /dev/tty1
> /var/log/messages
On reboot, and a NoVNC login and logout will populate the /var/log/messages with just:
Feb 6 17:47:39 test daemon.info init: starting pid 774, tty '/dev/1': '/sbin/getty 38400 console' Feb 6 17:47:50 test daemon.info init: starting pid 797, tty '/dev/2': '/sbin/getty 38400 tty2' Feb 6 17:51:50 test auth.info login[1016]: root login on 'console' Feb 6 17:51:54 test daemon.info init: process '/sbin/getty 38400 console' (pid 774) exited. Scheduling for restart. Feb 6 17:51:54 test daemon.info init: starting pid 1022, tty '/dev/1': '/sbin/getty 38400 console'
The above assumes that the last line of /etc/vz/dists/alpine.conf is:
SET_CONSOLE=set_console.sh
where the /etc/vz/dists/scripts/set_console.sh has:
#!/bin/sh
# Copyright (C) 2012-2014, Parallels, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#
# Configures getty in a container on /dev/tty1 (aka /dev/console)
# and /dev/tty2. Invoked during vzctl start. Needed for vzctl console.
if [ -x /lib/systemd/systemd ]; then
SYSTEMD_DIR=/lib/systemd/system
else
SYSTEMD_DIR=/usr/lib/systemd/system
fi
ETC_SYSTEMD_DIR="/etc/systemd/system"
SYSTEMD_GETTY_SERVICE=$SYSTEMD_DIR/getty@.service
create_dev()
{
local dev=$1
local major=$2
local minor=$3
if [ ! -c /dev/$dev -o -L /dev/$dev ]; then
rm -f /dev/$dev 2>/dev/null
mknod /dev/$dev c $major $minor
fi
}
fix_shell_console()
{
[ -f $SYSTEMD_DIR/console-getty.service ] &&
return 0
echo '# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
[Unit]
Description=Console Shell
After=systemd-user-sessions.service plymouth-quit-wait.service
Before=getty.target
[Service]
Environment=HOME=/root
WorkingDirectory=/root
ExecStart=-/sbin/agetty --noclear -s console 115200,38400,9600
Restart=always
RestartSec=0
UtmpIdentifier=cons
TTYPath=/dev/console
TTYReset=yes
TTYVHangup=yes
StandardInput=tty-force
StandardOutput=inherit
StandardError=inherit
KillMode=process
# Bash ignores SIGTERM, so we send SIGHUP instead, to ensure that bash
# terminates cleanly.
KillSignal=SIGHUP
[Install]
WantedBy=getty.target' > $SYSTEMD_DIR/console-getty.service
rm -f $SYSTEMD_DIR/console-shell.service
}
setup_systemd_console()
{
if grep -q -e 'ConditionPathExists=!/run/openvz' \
-e 'ConditionPathExists=!/proc/vz' $SYSTEMD_GETTY_SERVICE 2>/dev/null; then
sed -i -e '/ConditionPathExists=!\/run\/openvz/d' \
-e '/ConditionPathExists=!\/proc\/vz/d' $SYSTEMD_GETTY_SERVICE
fi
[ -L $SYSTEMD_DIR/getty.target.wants/getty@tty1.service ] && \
rm -f $SYSTEMD_DIR/getty.target.wants/getty@tty1.service
[ -L $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty1.service ] && \
rm -f $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty1.service
[ -L $SYSTEMD_DIR/getty.target.wants/getty@tty2.service ] || \
ln -sf $SYSTEMD_DIR/getty@.service $ETC_SYSTEMD_DIR/getty.target.wants/getty@tty2.service
[ -f $SYSTEMD_DIR/console-shell.service ] &&
fix_shell_console
}
setup_upstart_console()
{
local file=/etc/init/$1.conf
local getty
if [ -x /sbin/mingetty ]; then
getty='exec /sbin/mingetty'
elif [ -x /sbin/getty ]; then
getty='exec /sbin/getty 38400'
else
echo "Unable to find suitable getty, console setup is skipped"
return 0
fi
echo "start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]
respawn
$getty $1" > $file
}
setup_upstart_event_console()
{
local file=/etc/init.d/$1
local getty
if [ -x /sbin/mingetty ]; then
getty='exec /sbin/mingetty'
elif [ -x /sbin/getty ]; then
getty='exec /sbin/getty 38400'
else
echo "Unable to find suitable getty console setup is skipped"
return 0
fi
echo "start on stopped rc2
start on stopped rc3
start on stopped rc4
stop on runlevel 0
stop on runlevel 1
stop on runlevel 6
$getty $1" > $file
}
setup_inittab()
{
local line
local getty1
local getty2
if [ -x /sbin/mingetty ]; then
getty1='/sbin/mingetty console'
getty2='/sbin/mingetty tty2'
elif [ -x /sbin/getty ]; then
getty1='/sbin/getty 38400 console'
getty2='/sbin/getty 38400 tty2'
elif [ -x /sbin/agetty ]; then
getty1='/sbin/agetty console 38400'
getty2='/sbin/agetty tty2 38400'
else
echo "Unable to find suitable getty, console setup is skipped"
return 0
fi
line="1:2345:respawn:$getty1"
if ! grep -q "$line" /etc/inittab; then
echo $line >> /etc/inittab
fi
line="2:2345:respawn:$getty2"
if ! grep -q "$line" /etc/inittab; then
echo $line >> /etc/inittab
fi
}
setup_console()
{
if [ -f "$SYSTEMD_GETTY_SERVICE" ]; then
setup_systemd_console
elif [ -d '/etc/init' ]; then
setup_upstart_console console
setup_upstart_console tty2
elif [ -d "/etc/event.d" ]; then
setup_upstart_event_console console
setup_upstart_event_console tty2
elif [ -f "/etc/inittab" ]; then
setup_inittab
fi
create_dev console 5 1
create_dev tty2 4 2
}
setup_console
exit 0
Troubleshooting
If you still want to use the previous method (vzctl enter CTID) you can open the host Shell and just type vzctl enter CTID to manage your containers.
Java browser plugin
The console is using a Java applet, therefore you need latest Oracle (Sun) Java browser plugin installed and enabled in your browser (Google Chrome and Firefox preferred). If you are on Windows desktop, just go to java.com, if you run a Linux desktop you need to make sure that you run Oracle (Sun) Java plugin instead of the default openjdk. For Debian/Ubuntu based desktops, see Java_Console_(Ubuntu)
Modifying your templates
If you don't want to commit the changes above for every single CT you create, you can simply update the templates accordingly. For this, simply place the file you want to insert into your template (like etc/inittab for debian containers) into your template folder and update the template. The following is specific to CentOS 6, just replace filename/path and contents with the appropriate contents found above.
cd [TEMPLATE LOCATION] #Modify this mkdir -p etc/init cat <<EOF >etc/init/tty.conf # This service maintains a getty on tty1 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/agetty -8 tty1 38400 EOF gunzip centos-6-standard_6.3-1_amd64.tar.gz tar -rf centos-6-standard_6.3-1_amd64.tar etc gzip centos-6-standard_6.3-1_amd64.tar rm etc/init/tty.conf rmdir -p etc/init
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