LISAsoft-LiveCD process
This page has been superseded by the Live GIS Build wiki page.
How LISAsoft's LiveCD is created
Basically, we follow this HOW-TO: http://www.debuntu.org/how-to-customize-your-ubuntu-live-cd
As starting point we use current Ubuntu ISO-image. In the following it is assumed that the image is stored under ~/Desktop.
Preparing the Host
$ sudo apt-get install squashfs-tools chroot
$ mkdir /tmp/livecd
$ sudo mount -o loop ~/Desktop/ubuntu-7.10-desktop-i386.iso /tmp/livecd
$ mkdir ~/livecd
$ mkdir ~/livecd/cd
$ rsync --exclude=/casper/filesystem.squashfs -a /tmp/livecd/ ~/livecd/cd
$ mkdir ~/livecd/squashfs
$ mkdir ~/livecd/custom
$ sudo modprobe squashfs
$ sudo mount -t squashfs -o loop /tmp/livecd/casper/filesystem.squashfs \
~/livecd/squashfs/
$ sudo cp -a ~/livecd/squashfs/* ~/livecd/custom
$ sudo cp /etc/resolv.conf /etc/hosts ~/livecd/custom/etc/
Getting into our future image
$ sudo chroot ~/livecd/custom # mount -t proc none /proc/ # mount -t sysfs none /sys/ # export HOME=/root
Making DISPLAY usable within CHROOT
- extract display cookie (do this as the normal VMware user)
xauth extract /tmp/display $DISPLAY
- bind mount /tmp, so that it's visible on chroot
sudo mount --bind /tmp/ /home/vmplanet/livecd/custom/tmp
- on chroot environment
xauth merge /tmp/display export DISPLAY=:0
Cleaning up within CHROOT
# apt-get clean # rm -rf /tmp/* # umount /proc/ # umount /sys/ # exit
Building the ISO image
chmod +w ~/livecd/cd/casper/filesystem.manifest
sudo chroot ~/livecd/custom dpkg-query -W --showformat='${Package} \
${Version}\n' > ~/livecd/cd/casper/filesystem.manifest
sudo cp ~/livecd/cd/casper/filesystem.manifest \
~/livecd/cd/casper/filesystem.manifest-desktop
sudo mksquashfs ~/livecd/custom ~/livecd/cd/casper/filesystem.squashfs \
-no-duplicates -noappend
sudo rm ~/livecd/cd/md5sum.txt
sudo -s
(cd ~/livecd/cd && find . -type f -print0 | \
xargs -0 md5sum > md5sum.txt)
cd ~/livecd/cd
sudo mkisofs -r -V "Arramagong-Live-v0_4" -b isolinux/isolinux.bin \
-c isolinux/boot.cat -cache-inodes -J -l \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-o ~/Desktop/Arramagong-Live-v0_4.iso .