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

#!ipxe

# Alpine Linux
# https://alpinelinux.org

isset ${dhcp-server} && set ipparam ip=dhcp || set ipparam ip=${ip}::${gateway}:${netmask}::eth0:none:${dns}

goto ${menu}

:alpinelinux
clear alpine_version
set os {{ releases.alpinelinux.name }}
iseq ${arch} x86_64 && set bootarch x86_64 || set bootarch x86
menu ${os} [${bootarch}] - Image Sig Checks: [${img_sigs_enabled}]
item --gap Releases
{% for item in releases.alpinelinux.versions %}
item {{ item.code_name }} ${space} ${os} {{ item.name }}
{% endfor %}
choose alpine_version || goto alpine_exit
goto boot

:boot
set base-url ${alpinelinux_mirror}
set dir ${alpinelinux_base_dir}/${alpine_version}/releases/${bootarch}/netboot
set repo-url ${alpinelinux_mirror}/${alpinelinux_base_dir}/${alpine_version}/main
imgfree
iseq ${alpine_version} edge && goto edge_boot ||
kernel ${base-url}/${dir}/vmlinuz-vanilla ${ipparam} alpine_repo=${repo-url} modules=loop,squashfs modloop=${base-url}/${dir}/modloop-vanilla quiet nomodeset
initrd ${base-url}/${dir}/initramfs-vanilla
echo
echo MD5sums:
md5sum vmlinuz-vanilla initramfs-vanilla
iseq ${img_sigs_enabled} true && goto verify_sigs || goto skip_sigs
:verify_sigs
echo
echo Checking signatures...
imgverify vmlinuz-vanilla ${sigs}${dir}/vmlinuz-vanilla.sig || goto error
imgverify initramfs-vanilla ${sigs}${dir}/initramfs-vanilla.sig || goto error
echo Signatures verified!
echo
:skip_sigs
boot

:edge_boot
kernel ${base-url}/${dir}/vmlinuz-lts ${ipparam} alpine_repo=${repo-url} modules=loop,squashfs modloop=${base-url}/${dir}/modloop-lts quiet nomodeset
initrd ${base-url}/${dir}/initramfs-lts
echo
echo MD5sums:
md5sum vmlinuz-lts initramfs-lts
boot

goto alpine_exit

:alpine_exit
clear menu
exit 0