#!ipxe

# Ubuntu Operating System
# https://www.ubuntu.com

goto ${menu}

:ubuntu
set os Ubuntu
set os_arch ${arch}
iseq ${os_arch} x86_64 && set os_arch amd64 ||
iseq ${os_arch} arm64 && set os_arch arm64 ||
clear ubuntu_version
clear install_type
clear older_release
clear install_url
set install_type sub
set install_priority critical
menu ${os} - ${os_arch}
item --gap Latest Releases
{% for item in releases.ubuntu.versions %}
item {{ item.code_name }} ${space} ${os} {{ item.name }}
{% endfor %}
item --gap Older Releases
item older_release ${space} Set release codename...
choose ubuntu_version || goto ubuntu_exit
iseq ${ubuntu_version} older_release && goto older_release ||
iseq ${ubuntu_version} focal-legacy && set install_type deb ||
iseq ${ubuntu_version} focal-legacy && set ubuntu_version focal ||
iseq ${install_type} sub && goto boot_type ||
iseq ${os_arch} arm64 && echo "arm64 not supported on legacy network installs, please use 20.04 Subiquity and up" && sleep 5 && goto ubuntu ||
goto mirrorcfg

:older_release
set older_release true
set ubuntu_mirror {{ releases.ubuntu.archive_mirror }}
echo Setting mirror to ${ubuntu_mirror}
clear ubuntu_version
echo -n Please set enter code name of release: ${} && read ubuntu_version
set dir ${ubuntu_base_dir}/dists/${ubuntu_version}-updates/main/installer-${os_arch}/current/images/netboot/
goto boot_type

:mirrorcfg
set mirrorcfg mirror/suite=${ubuntu_version}
set dir ${ubuntu_base_dir}/dists/${ubuntu_version}-updates/main/installer-${os_arch}/current/images/netboot/
iseq ${ubuntu_version} focal && set dir ${ubuntu_base_dir}/dists/${ubuntu_version}-updates/main/installer-${os_arch}/current/legacy-images/netboot/ ||
goto boot_type

:boot_type
menu ${os} [${ubuntu_version}] Installer
item --gap Install types
item install ${space} Install
item rescue ${space} Rescue Mode
item automated ${space} Specify preseed/autoinstall url...
iseq ${install_type} deb && item priority ${space} Change install priority [ ${install_priority} ] ||
choose --default ${type} type || goto ubuntu
echo ${cls}
goto deb_${type}

:deb_rescue
iseq ${install_type} deb && set install_params rescue/enable=true ||
iseq ${install_type} sub && set install_params systemd.unit=rescue.target ||
goto deb_install

:deb_priority
iseq ${install_priority} critical && set install_priority low || set install_priority critical
goto boot_type

:deb_automated
iseq ${install_type} deb && set install_name preseed ||
iseq ${install_type} sub && set install_name autoinstall ||
echo -n Specify ${install_name} URL for ${os} ${ubuntu_version}: && read install_url
iseq ${install_type} deb && set install_params auto=true priority=${install_priority} preseed/url=${install_url} ||
iseq ${install_type} sub && set install_params autoinstall ds=nocloud-net;s=${install_url} ||
goto deb_install

:deb_install
iseq ${install_type} deb && goto deb_boot ||
iseq ${install_type} sub && goto ${ubuntu_version}_${os_arch} ||

:deb_boot
echo Loading Ubuntu PXE netboot installer
set dir ${dir}ubuntu-installer/${os_arch}
imgfree
kernel ${ubuntu_mirror}/${dir}/linux ${install_params} ${mirrorcfg} {{ kernel_params }}
initrd ${ubuntu_mirror}/${dir}/initrd.gz
echo
echo MD5sums:
md5sum linux initrd.gz
boot

{% for key, value in endpoints.items() | sort %}
{% if value.os == "ubuntu" and 'netboot' in key %}
{% set kernel_name = value.kernel %}
:{{ value.codename }}_{{ value.arch }}
{% for key, value in endpoints.items() | sort %}
{% if key == kernel_name %}
set kernel_url ${live_endpoint}{{ value.path }}
set codename {{ value.codename }}
set version_number {{ value.version }}
{% endif %}
{% endfor %}
goto sub_boot
{% endif %}
{% endfor %}

:sub_boot
imgfree
iseq ${os_arch} amd64 && set ubuntu_iso_url http://releases.ubuntu.com/${codename}/ubuntu-${version_number}-live-server-${os_arch}.iso ||
iseq ${os_arch} arm64 && set ubuntu_iso_url http://cdimage.ubuntu.com/releases/${version_number}/release/ubuntu-${version_number}-live-server-${os_arch}.iso ||
isset ${dhcp-server} && set netboot_params ip=dhcp url=${ubuntu_iso_url} || set netboot_params
echo Loading Ubuntu Subiquity Network Installer...
kernel ${kernel_url}vmlinuz root=/dev/ram0 ramdisk_size=3500000 cloud-config-url=/dev/null ${netboot_params} ${install_params} {{ kernel_params }}
initrd ${kernel_url}initrd
echo
echo MD5sums:
md5sum vmlinuz initrd
boot

:ubuntu_exit
clear menu
exit 0