View source for Livedvd-makingoff


== VNUML Live DVD making-off ==

=== Creation using Ubuntu Customization Kit (UCK) ===

[[http://uck.sourceforge.net UCK]] is a tool that helps you customizing official Ubuntu Live CDs.

Download (http://sourceforge.net/project/showfiles.php?group_id=169959) and install UCK from debian package:

  dpkg -i uck_1.3_all.deb

Create a directory to hold all the vnumllive stuff:

  mkdir vnumllive
  cd vnumllive
  wget ... ubuntu-6.06.1-desktop-i386.iso
  mkdir live
  cd live

Create a directory named vnuml and copy the kernel and rootfilesystem:
  mkdir vnuml
  cd vnuml
  wget ...root_fs_tutorial...
  wget ...linux-...

Copy also the directories with the examples and other information needed to be copied to the live dvd:

<pre>
# ls vnuml
bookmarks.html             known_hosts
doc/                       linux-2.6.16.27-bs2-xt-1m
examples/                  root_fs_tutorial-0.4.1
examples2/                 ssh_host_rsa_key.pub
init-vnuml                 usr-share-doc-vnuml/
</pre>
 
 
Create a file '''vnumllive/live/customize''' with the following content:

<pre>
#!/bin/bash

# VARIABLES
ROOTFS='root_fs_tutorial-0.4.1'
KERNEL='linux-2.6.16.27-bs2-xt-1m'

function prepare_install()
{
        apt-get update
        apt-get -y upgrade
}

function install_packages()
{
        apt-get install --assume-yes --force-yes "$@"
}

function remove_packages()
{
        apt-get --purge remove --assume-yes --force-yes "$@"
}

# update apt sources.list
echo "deb http://jungla.dit.upm.es/~vnuml/debian binary/"   >> /etc/apt/sources.
list
echo "deb http://archive.ubuntu.com/ubuntu dapper universe" >> /etc/apt/sources.
list
echo "deb-src http://archive.ubuntu.com/ubuntu dapper universe" >> /etc/apt/sour
ces.list

prepare_install

# Create groups
/usr/sbin/addgroup admin
/usr/sbin/addgroup ubuntu

# Create user ubuntu
/usr/sbin/useradd --home /home/ubuntu -m -g adm -G dialout,cdrom,floppy,audio,di
p,video,plugdev,lpadmin,scanner,admin,ubuntu -p `perl -le "print crypt ('ubuntu'
,'(A..z)[rand 25].(A..z)[rand ');"` -s /bin/bash ubuntu

# Add privileges to admin group
echo "# Members of the admin group may gain root privileges" >> /etc/sudoers
echo "%admin ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

# Install vnuml
install_packages vnuml

# Change VNUML timeout to 120 secs
cp /usr/bin/vnumlparser.pl /tmp
cat /tmp/vnumlparser.pl | sed -e 's/my $boot_timeout = 30;/my $boot_timeout = 12
0;/' | sed -e 's/getpwnam("vnuml")/getpwnam("ubuntu")/' | sed -e '/Ferm/d'  > /u
sr/bin/vnumlparser.pl
rm -f /tmp/vnumlparser.pl

# Copy root_fs and kernel
cp /tmp/customize-dir/vnuml/$ROOTFS /usr/share/vnuml/filesystems
cp /tmp/customize-dir/vnuml/$KERNEL /usr/share/vnuml/kernels
ln -s /usr/share/vnuml/filesystems/$ROOTFS /usr/share/vnuml/filesystems/root_fs_
tutorial
ln -s /usr/share/vnuml/kernels/$KERNEL /usr/share/vnuml/kernels/linux

# Add vnuml-init script to startup
cp /tmp/customize-dir/vnuml/init-vnuml /etc/init.d
update-rc.d init-vnuml defaults 12    # 12 is to start it before gdm...

# Copy aditional examples and docs
cp -r /tmp/customize-dir/vnuml/examples/* /usr/share/vnuml/examples
cp -r /tmp/customize-dir/vnuml/doc /usr/share/vnuml

# Copy ssh_host_rsa_key.pub temporarily to /tmp file
mkdir -p /usr/share/vnuml/aux
cp /tmp/customize-dir/vnuml/ssh_host_rsa_key.pub /usr/share/vnuml/aux
cp /tmp/customize-dir/vnuml/known_hosts /usr/share/vnuml/aux

# Copy firefox bookmarks file
cp /tmp/customize-dir/vnuml/bookmarks.html /etc/firefox/profile
 
# Copy documentation withouth author's names
cp -rf /tmp/customize-dir/vnuml/usr-share-doc-vnuml/* /usr/share/doc/vnuml
</pre>

Give it execution permissions:

  chmod +x customize 

Create a file '''vnumllive/live/iso_description''' with the following content:

 VNUML Live DVD v2

Execute the following command:

  remaster-live-cd ubuntu-6.06.1-desktop-i386.iso live

If everything goes well, the dvd iso file and its md5 are stored in /root/tmp/remaster-new-files. Just rename and copy them:

 mv /root/tmp/remaster-new-files/livecd.iso vnuml-live-2.0.iso
 mv /root/tmp/remaster-new-files/livecd.iso.md5 vnuml-live-2.0.iso.md5


Note: Delete /root/tmp before generating the dvd in case of problems.

== OLD ==


Based on [[https://help.ubuntu.com/community/LiveCDCustomization/6%2e06 LiveCDCustomization/6.06]]




  sudo su
  apt-get install squashfs-tools mkisofs qemu
  modprobe squashfs

  
  mkdir live
  mv ubuntu-6.06.1-desktop-i386.iso live
  cd live

  mkdir mnt
  mount -o loop ubuntu-6.06.1-desktop-i386.iso mnt

  mkdir extract-cd
  rsync --exclude=/casper/filesystem.squashfs -a mnt/ extract-cd

  mkdir squashfs
  mount -t squashfs -o loop mnt/casper/filesystem.squashfs squashfs

  mkdir edit
  cp -a squashfs/* edit/

  cp /etc/resolv.conf edit/etc/
  cp /etc/hosts edit/etc/

  chroot edit
  mount -t proc none /proc
  mount -t sysfs none /sys

  export HOME=/root
  export LC_ALL=C


.....

Add VNUML package source:

  > vi /etc/apt/sources.list

  # Uncomment this lines
  deb http://archive.ubuntu.com/ubuntu dapper universe
  deb-src http://archive.ubuntu.com/ubuntu dapper universe
  
  # Add this new line
  deb http://jungla.dit.upm.es/~vnuml/debian binary/

Update and upgrade:

  > apt-get update
  > apt-get upgrade

Install VNUML:

  > apt-get install vnuml

Copy VNUML kernel and rootfilesystem and create soft links:

  > cd /usr/share/vnuml/filesystems
  > wget ......./root_fs_tutorial-XXXX
  > ln -s root_fs_tutorial-XXXX root_fs_tutorial
  > cd ../kernels
  > wget ......./linux-XXXX
  > ln -s linux-XXXX linux 

Adduser:

  > adduser --system ubuntu
  > passwd ubuntu     # set it to "ubuntu"

retocar a mano /etc/passwd para cambiar el /bin/false a /bin/bash del usuario ubuntu



Notes on ubuntu live CD:

* Has autologin activated to user ubuntu (configured in /etc/gdm.conf; entries "AutomaticLogin" and "TimedLogin*)
* ubuntu user 
** has no password configured
** /etc/passwd entry = ubuntu:x:999:999:Ubuntu Live CD user,,,:/home/ubuntu:/bin/bash
**