73 lines
1.8 KiB
Nix
73 lines
1.8 KiB
Nix
{
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pkgs,
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stdenv,
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fetchurl,
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}:
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stdenv.mkDerivation rec {
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pname = "mrescue-alpine";
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version = "3.23.2";
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src = fetchurl {
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url = "https://dl-cdn.alpinelinux.org/alpine/v3.23/releases/x86_64/alpine-netboot-${version}-x86_64.tar.gz";
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hash = "sha256-nFfzrPH1KI2R3OXBOluV7wB/hY63ImxWp/tyzBahpK0=";
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};
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nativeBuildInputs = with pkgs; [
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gzip
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cpio
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squashfsTools
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findutils
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zstd
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];
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sourceRoot = ".";
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unpackPhase = ''
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runHook preUnpack
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mkdir alpine-boot
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tar -xzf $src -C alpine-boot --strip-components=1
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runHook postUnpack
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'';
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buildPhase = ''
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runHook preBuild
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mkdir -p work/initramfs-extracted
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cd work
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gzip -dc < ../alpine-boot/initramfs-virt | \
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cpio -idm --quiet -D initramfs-extracted
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unsquashfs -f -d modloop-extracted ../alpine-boot/modloop-virt >/dev/null
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mkdir -p initramfs-extracted/lib/modules
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cp -r modloop-extracted/modules/* initramfs-extracted/lib/modules/
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# Initialize apk database
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mkdir -p initramfs-extracted/lib/apk/db
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mkdir -p initramfs-extracted/etc/apk
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touch initramfs-extracted/lib/apk/db/installed
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touch initramfs-extracted/etc/apk/world
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echo "https://dl-cdn.alpinelinux.org/alpine/latest-stable/main" > initramfs-extracted/etc/apk/repositories
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echo "https://dl-cdn.alpinelinux.org/alpine/latest-stable/community" >> initramfs-extracted/etc/apk/repositories
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cd initramfs-extracted
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find * .[^.*] -print0 | sort -z | \
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cpio --quiet -o -H newc -R +0:+0 --reproducible --null | \
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zstd -19 -T8 > ../initramfs-combined.zst
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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mkdir -p $out
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install -Dm644 ../../alpine-boot/vmlinuz-virt $out/kernel
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install -Dm644 ../initramfs-combined.zst $out/initrd
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runHook postInstall
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'';
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}
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