netboot.xyz/boot/ubuntu.ipxe

#!ipxe

# Ubuntu Operating System
# http://www.ubuntu.org

goto ${menu}

:ubuntu
set os ubuntu
iseq ${manufacturer} Xen && set netcfg netcfg/get_ipaddress=${netX/ip} netcfg/get_netmask=${netX/netmask} netcfg/get_gateway=${netX/gateway} netcfg/get_nameservers=${dns} netcfg/confirm_static=true netcfg/choose_interface=eth0 netcfg/disable_autoconfig=true ||

menu Ubuntu ${arch_a}
item vivid Ubuntu 15.04 Vivid Vervet 
item utopic Ubuntu 14.10 Utopic Unicorn
item trusty Ubuntu 14.04 LTS Trusty Tahr
item saucy Ubuntu 13.10 Saucy Salamander
item quantal Ubuntu 12.10 Quantal Quetzal
item precise Ubuntu 12.04 LTS Precise Pangolin
choose version || goto ubuntu_exit
set mirrorcfg mirror/suite=${version} mirror/country=manual mirror/http/hostname=${mirror} mirror/http/directory=/${os}

:deb_boot_type
set dir ${os}/dists/${version}-updates/main/installer-${arch_a}/current/images/netboot/

menu ${os} boot parameters
item install ${os} install
item rescue ${os} rescue mode
item expert ${os} expert install
item preseed ${os} specify preseed url
choose --default ${type} type || goto ubuntu

echo ${cls}
goto deb_${type}

:deb_rescue
set install_params rescue/enable=true
goto deb_boot

:deb_expert
set install_params priority=low
goto deb_boot

:deb_preseed
echo -n Specify preseed URL for ${os} ${version}: && read preseedurl
set install_params auto=true priority=critical preseed/url=${preseedurl}
goto deb_boot

:deb_install
:deb_boot
set dir ${dir}${menu}-installer/${arch_a}
imgfree
echo Boot parameters: ${install_params} -- quiet ${params}
kernel http://${mirror}/${dir}/linux ${install_params} ${netcfg} ${mirrorcfg} -- quiet ${params}
initrd http://${mirror}/${dir}/initrd.gz
boot

:ubuntu_exit
clear menu
chain linux.ipxe