====== Ubuntu Live boot over PXE ======

===== Ubuntu 9.10 Desktop Live PXE / install  =====

First, clone the contents of the LiveCD ISO image to the NFS boot environment

<code>
mount -o loop /srv/ISO-images/Ubuntu/ubuntu-9.10-desktop-i386.iso /mnt/
mkdir -p /srv/boot/live/ubuntu/9.10/i386
cp -a /mnt/* /srv/boot/live/ubuntu/9.10/i386/
cp -a /mnt/.disk /srv/boot/live/ubuntu/9.10/i386/
</code>

Note the directory ".disk". If you omit it, all you'll get when trying to boot is a failed boot
when running with "quiet splash", or running without them, the prompt:

  * "Please provide a name for this Disc, such as 'Debian 2.1r1 Disk1'"

Next, get the kernel an initrd to the TFTP tree:

<code>
mkdir -p /var/lib/tftpboot/live/ubuntu/9.10/i386
cp /srv/boot/ubuntu/9.10/i386/casper/{initrd.lz,vmlinuz} /var/lib/tftpboot/live/ubuntu/9.10/i386/
</code>

Ubuntu Live-boot leads to very long APPEND lines, as you can see from the entries from my menus/ubuntu.cfg

<code>
LABEL live
        MENU LABEL ^1 Try Ubuntu 9.10 i386 Live-boot
        TEXT HELP
Select this on 32bit computers to test Ubuntu 9.10 with no install.
        ENDTEXT
        KERNEL live/ubuntu/9.10/i386/vmlinuz
        APPEND boot=casper netboot=nfs nfsroot=10.0.2.13:/srv/boot/live/ubuntu/9.10/i386 quiet splash initrd=live/ubuntu/9.10/i386/initrd.lz --

LABEL live-install
        MENU LABEL ^2 Install Ubuntu 9.10 i386
        TEXT HELP
Select this on 32bit computers to install Ubuntu 9.10 onto your system.
        ENDTEXT
        KERNEL live/ubuntu/9.10/i386/vmlinuz
        APPEND boot=casper netboot=nfs nfsroot=10.0.2.13:/srv/boot/live/ubuntu/9.10/i386 only-ubiquity quiet splash initrd=live/ubuntu/9.10/i386/initrd.lz --

</code>

The major magic here is the netboot=nfs and nfsroot=server:/path options.

Repeat the above for adm64, replacing i386 for amd64 where appropriate.