Vnx-install-ubuntu2

VNX Installation over Ubuntu

This section describes the procedure for manually installing VNX over Ubuntu 12.04, 12.10 and 13.04.

Open a root shell window and follow these steps:

• Install all packages required (basic development, virtualization, perl libraries and auxiliar packages):

sudo apt-get update
sudo apt-get install qemu-kvm libvirt-bin vlan xterm bridge-utils screen virt-manager \
 virt-viewer uml-utilities graphviz genisoimage gnome-terminal tree \
 curl w3m picocom expect lxc wmctrl \
 libnetaddr-ip-perl libxml-libxml-perl libxml-tidy-perl libappconfig-perl \
 libreadonly-perl libterm-readline-perl-perl libnet-pcap-perl libnet-ipv6addr-perl \
 libsys-virt-perl libnet-telnet-perl liberror-perl libexception-class-perl \
 libxml-dom-perl libdbi-perl libmath-round-perl libio-pty-perl libnet-ip-perl \
 libxml-checker-perl libxml-parser-perl libfile-homedir-perl 

• Tune libvirt configuration to work with VNX. In particular, edit /etc/libvirt/qemu.conf file and set the following parameters:

security_driver = "none"
user = "root"
group = "root"
cgroup_device_acl = [
   "/dev/null", "/dev/full", "/dev/zero",
   "/dev/random", "/dev/urandom",
   "/dev/ptmx", "/dev/kvm", "/dev/kqemu",
   "/dev/rtc", "/dev/hpet", "/dev/net/tun",
]

and restart libvirtd for the changes to take effect:

restart libvirt-bin

• Check that libvirt is running correctly, for example, executing:

virsh list
virsh capabilities

Note: Have a look at this document in case you get an error similar to this one: virsh: /usr/lib/libvirt.so.0: version LIBVIRT_PRIVATE-XXX not found (required by virsh)

• Only for Ubuntu 12.10: serial lines support seems to be broken in qemu-kvm v1.2 package provided in 12.10, so you need to downgrade to v1.0.1.

apt-get install zlib1g-dev libglib2.0-dev
mkdir src
cd src
wget http://downloads.sourceforge.net/project/kvm/qemu-kvm/1.0.1/qemu-kvm-1.0.1.tar.gz
tar xfvz qemu-kvm-1.0.1.tar.gz
cd qemu-kvm-1.0.1
./configure --prefix=/usr
make
make install
service libvirt-bin restart

• Install VNX:

mkdir /tmp/vnx-update
cd /tmp/vnx-update
rm -rf /tmp/vnx-update/vnx-*
wget http://vnx.dit.upm.es/vnx/vnx-latest.tgz
tar xfvz vnx-latest.tgz
cd vnx-*
./install_vnx

• Create the VNX config file (/etc/vnx.conf). You just can move the sample config file:

mv /usr/share/vnx/etc/vnx.conf.sample /etc/vnx.conf

• Download root file systems from http://idefix.dit.upm.es/download/vnx/filesystems and install them following these instructions

Additional install steps for Dynamips support

• Install Dynamips and Dynagen:

apt-get install dynamips dynagen

• Create a file /etc/init.d/dynamips (taken from http://7200emu.hacki.at/viewtopic.php?t=2198):

#!/bin/sh
# Start/stop the dynamips program as a daemon.
#
### BEGIN INIT INFO
# Provides:          dynamips
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Cisco hardware emulator daemon
### END INIT INFO

DAEMON=/usr/bin/dynamips
NAME=dynamips
PORT=7200
PIDFILE=/var/run/$NAME.pid 
LOGFILE=/var/log/$NAME.log
DESC="Cisco Emulator"
SCRIPTNAME=/etc/init.d/$NAME

test -f $DAEMON || exit 0

. /lib/lsb/init-functions


case "$1" in
start)  log_daemon_msg "Starting $DESC " "$NAME"
        start-stop-daemon --start --chdir /tmp --background --make-pidfile --pidfile $PIDFILE --name $NAME --startas $DAEMON -- -H $PORT -l $LOGFILE
        log_end_msg $?
        ;;
stop)   log_daemon_msg "Stopping $DESC " "$NAME"
        start-stop-daemon --stop --quiet --pidfile $PIDFILE --name $NAME
        log_end_msg $?
        ;;
restart) log_daemon_msg "Restarting $DESC " "$NAME"
        start-stop-daemon --stop --retry 5 --quiet --pidfile $PIDFILE --name $NAME
        start-stop-daemon --start --chdir /tmp --background --make-pidfile --pidfile $PIDFILE --name $NAME --startas $DAEMON -- -H $PORT -l $LOGFILE
        log_end_msg $?
        ;;
status)
        status_of_proc -p $PIDFILE $DAEMON $NAME && exit 0 || exit $? 
        #status $NAME
        #RETVAL=$?
        ;; 
*)      log_action_msg "Usage: $SCRIPTNAME {start|stop|restart|status}"
        exit 2
        ;;
esac
exit 0

• Set execution permissions for the script and add it to system start-up:

chmod +x /etc/init.d/dynamips
update-rc.d dynamips defaults
/etc/init.d/dynamips start

• Download and install cisco IOS image:

 cd /usr/share/vnx/filesystems
 # Cisco image
 wget ... c3640-js-mz.124-19.image
 ln -s c3640-js-mz.124-19.image c3640

• Calculate the idle-pc value for your computer following the procedure in http://dynagen.org/tutorial.htm:

dynagen /usr/share/vnx/examples/R3640.net
console R3640     # type 'no' to exit the config wizard and wait 
              # for the router to completely start 
idlepc get R3640

Once you know the idlepc value for your system, include it in /etc/vnx.conf file.