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@lheckemann
Last active December 29, 2016 23:08
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PXE boot
nix-build && sudo dnsmasq -c result/dnsmasq.conf
{ system ? builtins.currentSystem }:
let
pkgs = import <nixpkgs> {};
netboot = (import <nixpkgs/nixos/release.nix> {}).netboot.x86_64-linux;
grubConfig = pkgs.writeText "grub.cfg" ''
set timeout=5
menuentry "NixOS Installer" {
echo "Loading kernel..."
linux (pxe)/installer/bzImage @kernelOpts@
echo "Loading initramfs..."
initrd (pxe)/installer/initrd
echo "Booting..."
}
'';
grub = pkgs.runCommand "grub" {
buildInputs = [ pkgs.grub2 pkgs.perlPackages.perl ];
} ''
mkdir $out
export kernelOpts="$(perl -ne '/.*bzImage (.*)/ && print $1' ${netboot}/netboot.ipxe)"
echo "KERNEL OPTIONS: $kernelOpts"
substituteAll ${grubConfig} $out/grub.cfg
grub-mkimage --format=i386-pc-pxe -o $out/grub.pxe --prefix='(pxe)/boot' pxe net tftp normal echo linux
ln -s ${pkgs.grub2}/lib/grub/i386-pc $out/
'';
in
pkgs.runCommand "tftproot" {
} ''
mkdir -p $out
substituteAll ${./dnsmasq.conf} $out/dnsmasq.conf
ln -s ${grub} $out/boot
ln -s ${netboot} $out/installer
''
interface=enp2s0f0
keep-in-foreground
dhcp-range=10.123.0.10,10.123.0.200,6h
dhcp-boot=boot/grub.pxe
enable-tftp
tftp-root=@out@
dhcp-option=3
dhcp-option=6
port=0
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