netboot.xyz/roles/netbootxyz/templates/menu/centos.ipxe.j2

#!ipxe

# CentOS Operating System
# http://www.centos.org

isset ${dhcp-server} && set ipparam ip=dhcp || set ipparam ip=${ip}::${gateway}:${netmask}:::none nameserver=${dns}
set ipparam BOOTIF=${netX/mac} ${ipparam}

goto ${menu} ||

:centos
clear osversion
set os {{ releases.centos.name }}
set os_arch ${arch}
iseq ${os_arch} x86_64 && set os_arch x86_64 ||
iseq ${os_arch} arm64 && set os_arch aarch64 ||
menu ${os} - ${os_arch}
{% for item in releases.centos.versions %}
item {{ item.code_name }} ${space} ${os} {{ item.name }}
{% endfor %}
isset ${osversion} || choose osversion || goto linux_menu
echo ${cls}
set dir ${centos_base_dir}/${osversion}/BaseOS/${os_arch}/os
iseq ${osversion} 7 && set dir ${centos_base_dir}/${osversion}/os/${os_arch} ||
set repo ${centos_mirror}/${dir}
goto boottype

:boottype
set ova ${os} ${osversion}
menu ${os} ${os_arch} boot type
item graphical ${ova} graphical installer
item text ${ova} text based installer
item rescue ${ova} rescue
item kickstart ${ova} set kickstart url [ ${ksurl} ]
item kickstart_device ${ova} set ksdevice [ ${ksdevice} ]
isset ${bt} || choose bt || goto centos
echo ${cls}
iseq ${bt} text && goto text ||
iseq ${bt} rescue && goto rescue ||
iseq ${bt} kickstart && goto kickstart ||
iseq ${bt} kickstart_device && goto kickstart_device ||
goto bootos_images

:text
set params text ||
goto bootos_images

:rescue
set params rescue ||
goto bootos_images

:kickstart
echo -n Specify kickstart URL for ${os} ${osversion}: && read ksurl
set params inst.ks=${ksurl} ||
clear bt
goto boottype

:kickstart_device
echo -n Specify ksdevice param for ${os} ${osversion}: && read ksdevice
set ksdevice ${ksdevice} ||
clear bt
goto boottype

:bootos_images
imgfree
iseq ${osversion} 9-stream && set centos_mirror http://mirror.stream.centos.org || 
iseq ${osversion} 9-stream && set dir ${osversion}/BaseOS/${os_arch}/os ||
iseq ${osversion} 9-stream && set repo ${centos_mirror}/${dir} ||
kernel ${centos_mirror}/${dir}/images/pxeboot/vmlinuz inst.repo=${repo} ${params} ${ipparam} {{ kernel_params }}
initrd ${centos_mirror}/${dir}/images/pxeboot/initrd.img
echo
echo MD5sums:
md5sum vmlinuz initrd.img
boot
goto linux_menu

:linux_menu
clear menu
exit 0