[one-users] Cannot connect to VM

[Christophe Hamerling - Petals Link]

Ok, so I will check that the generated IP is the one expected from the
leases list based on this script algorithm.
Is the VM is exploded somewhere at startup? If yes, where?

On Wed, Dec 15, 2010 at 11:19 AM, Gian Uberto Lauri <saint at eng.it> wrote:

> [My apologies for breaking the threading informations]
>
> CH> What I understand is that the init.sh script provided in
> CH> http://dev.opennebula.org/attachments/download/170/ttylinux.tar.gz
> CH> is just useful in context based VM and is not used in my case.
> CH> Where can I look to the VM configuration file once it is started?
> CH> Is iy exploded somewhere so I can have a look to files?
>
> The content of the script that's run on the first boot of the VM after
> sourcing the file in the iso image:
>
> ----------------------------------8<---------------------------
> #!/bin/bash
> #
> # chkconfig: 2345 10 90
> # description:  network reconfigure
> #
> #
> -------------------------------------------------------------------------- #
> # Copyright 2002-2009, Distributed Systems Architecture Group, Universidad
>   #
> # Complutense de Madrid (dsa-research.org)
>   #
> #
>  #
> # Licensed under the Apache License, Version 2.0 (the "License"); you may
>  #
> # not use this file except in compliance with the License. You may obtain
>  #
> # a copy of the License at
>   #
> #
>  #
> # http://www.apache.org/licenses/LICENSE-2.0
>   #
> #
>  #
> # Unless required by applicable law or agreed to in writing, software
>  #
> # distributed under the License is distributed on an "AS IS" BASIS,
>  #
> # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>   #
> # See the License for the specific language governing permissions and
>  #
> # limitations under the License.
>   #
> #---------------------------------------------------------------------------
> #
>
> # Gets IP address from a given MAC
> mac2ip() {
>    mac=$1
>
>    let ip_a=0x`echo $mac | cut -d: -f 3`
>    let ip_b=0x`echo $mac | cut -d: -f 4`
>    let ip_c=0x`echo $mac | cut -d: -f 5`
>    let ip_d=0x`echo $mac | cut -d: -f 6`
>
>    ip="$ip_a.$ip_b.$ip_c.$ip_d"
>
>    echo $ip
> }
>
> # Gets the network part of an IP
> get_network() {
>    IP=$1
>
>    echo $IP | cut -d'.' -f1,2,3
> }
>
> get_interfaces() {
>    IFCMD="/sbin/ifconfig -a"
>
>    $IFCMD | grep ^eth | sed 's/ *Link encap:Ethernet.*HWaddr /-/g'
> }
>
> get_dev() {
>    echo $1 | cut -d'-' -f 1
> }
>
> get_mac() {
>    echo $1 | cut -d'-' -f 2
> }
>
> gen_hosts() {
>    NETWORK=$1
>    echo "127.0.0.1 localhost"
>    for n in `seq -w 01 99`; do
>        n2=`echo $n | sed 's/^0*//'`
>        echo ${NETWORK}.$n2 cluster${n}
>    done
> }
>
> gen_exports() {
>    NETWORK=$1
>    echo "/images ${NETWORK}.0/255.255.255.0(rw,async,no_subtree_check)"
> }
>
> gen_hostname() {
>    MAC=$1
>    NUM=`mac2ip $MAC | cut -d'.' -f4`
>    NUM2=`echo 000000$NUM | sed 's/.*\(..\)/\1/'`
>    echo cluster$NUM2
> }
>
> gen_interface() {
>  DEV_MAC=$1
>  DEV=`get_dev $DEV_MAC`
>  MAC=`get_mac $DEV_MAC`
>  IP=`mac2ip $MAC`
>
> # dumping the values into the reddattish file
> cat <<EOT
>  DEVICE=$DEV
>  BOOTPROTO=none
>  HWADDR=$MAC
>  ONBOOT=yes
>  TYPE=Ethernet
>  NETMASK=255.255.255.0
>  IPADDR=$IP
> EOT
>
>    if [ $DEV == "eth0" ]; then
>      echo " GATEWAY=$NETWORK.1"
>    fi
>
> echo ""
> }
>
>
> IFACES=`get_interfaces`
>
> for i in $IFACES; do
>    MASTER_DEV_MAC=$i
>    DEV=`get_dev $i`
>    MAC=`get_mac $i`
>    IP=`mac2ip $MAC`
>    NETWORK=`get_network $IP`
> done
>
> # gen_hosts $NETWORK > /etc/hosts
>
> # gen_exports $NETWORK  > /etc/exports
>
> # gen_hostname $MAC  > /etc/hostname
> (
> cat <<EOT
>
> EOT
>
> for i in $IFACES; do
>    gen_interface $i
> done
> ) > /etc/sysconfig/network-scripts/ifcfg-${DEV}
>
> #ifdown $DEV
> #ifup $DEV
>
> exit $RETVAL
> # /bin/hostname `cat /etc/hostname`
> ----------------------------------8<---------------------------
>
> I have to investigate other means of accessing the VM console, since we
> plan
> to use OpenNebula to offer Windows virtualization and this script does not
> cope
> with Windows bootstrap process AFAIK.
>
>
> --
> ing. Gian Uberto Lauri
> Ricercatore / Reasearcher
> Divisione Ricerca ed Innovazione / Research & Innovation Division
> GianUberto.Lauri at eng.it
>
> Engineering Ingegneria Informatica spa
> Corso Stati Uniti 23/C, 35127 Padova (PD)
>
> Tel. +39-049.8283.538         | main(){printf(&unix["\021%six\012\0"],
> Fax  +39-049.8283.569             |    (unix)["have"]+"fun"-0x60);}
> Skype: gian.uberto.lauri          |          David Korn, AT&T Bell Labs
> http://www.eng.it                         |          ioccc best One Liner,
> 1987
>
>
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>



-- 
Christophe Hamerling
R&D Engineer & Project Leader
Petals Link - SOA open-source company
OW2 PEtALS SOA Suite Comitter
Skype : christophe.hamerling
Jabber : chamerling at jabber.org
Blog : http://chamerling.org
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