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update-nixos.sh (2271B) - Raw

      1 #!/usr/bin/env bash
      2 set -euo pipefail
      3 
      4 # Script to get latest NixOS netboot file hashes from nix-community/nixos-images
      5 # Usage: ./update-nixos.sh [version]
      6 #   version: 25.11, unstable, etc. (default: 25.11)
      7 
      8 VERSION="${1:-25.11}"
      9 BASE_URL="https://github.com/nix-community/nixos-images/releases/download/nixos-${VERSION}"
     10 MIRROR_BASE="https://dl.jakstys.lt/boot"
     11 
     12 echo "Fetching NixOS netboot files for version: ${VERSION}" >&2
     13 
     14 # Fetch kernel hash
     15 KERNEL_URL="${BASE_URL}/bzImage-x86_64-linux"
     16 echo "Downloading kernel from: $KERNEL_URL" >&2
     17 KERNEL_HASH_B32=$(nix-prefetch-url "$KERNEL_URL" 2>/dev/null)
     18 KERNEL_HASH_HEX=$(nix-hash --type sha256 --to-base16 "$KERNEL_HASH_B32")
     19 KERNEL_HASH_SRI=$(nix-hash --type sha256 --to-sri "$KERNEL_HASH_HEX")
     20 
     21 # Fetch initrd hash
     22 INITRD_URL="${BASE_URL}/initrd-x86_64-linux"
     23 echo "Downloading initrd from: $INITRD_URL" >&2
     24 INITRD_HASH_B32=$(nix-prefetch-url "$INITRD_URL" 2>/dev/null)
     25 INITRD_HASH_HEX=$(nix-hash --type sha256 --to-base16 "$INITRD_HASH_B32")
     26 INITRD_HASH_SRI=$(nix-hash --type sha256 --to-sri "$INITRD_HASH_HEX")
     27 
     28 echo ""
     29 echo "Update pkgs/mrescue-nixos.nix with:"
     30 echo ""
     31 echo "  version = \"${VERSION}\";"
     32 echo ""
     33 echo "  kernel hash = \"${KERNEL_HASH_SRI}\";"
     34 echo "  initrd hash = \"${INITRD_HASH_SRI}\";"
     35 echo ""
     36 
     37 # Check mirror availability
     38 KERNEL_MIRROR="${MIRROR_BASE}/nixos-${VERSION}-bzImage-x86_64-linux"
     39 INITRD_MIRROR="${MIRROR_BASE}/nixos-${VERSION}-initrd-x86_64-linux"
     40 
     41 echo "Checking mirror availability..." >&2
     42 KERNEL_EXISTS=$(curl -sI "$KERNEL_MIRROR" | head -1 | grep -q "200" && echo "yes" || echo "no")
     43 INITRD_EXISTS=$(curl -sI "$INITRD_MIRROR" | head -1 | grep -q "200" && echo "yes" || echo "no")
     44 
     45 if [[ "$KERNEL_EXISTS" == "no" ]] || [[ "$INITRD_EXISTS" == "no" ]]; then
     46   echo ""
     47   echo "⚠ Warning: Files not found on mirror!" >&2
     48   echo ""
     49   echo "To upload to mirror, run:" >&2
     50   echo ""
     51   if [[ "$KERNEL_EXISTS" == "no" ]]; then
     52     echo "  ssh fwminex sh -c 'cd /var/www/dl/boot && wget -O nixos-${VERSION}-bzImage-x86_64-linux ${KERNEL_URL}'" >&2
     53   fi
     54   if [[ "$INITRD_EXISTS" == "no" ]]; then
     55     echo "  ssh fwminex sh -c 'cd /var/www/dl/boot && wget -O nixos-${VERSION}-initrd-x86_64-linux ${INITRD_URL}'" >&2
     56   fi
     57   echo ""
     58 else
     59   echo "✓ All files available on mirror" >&2
     60 fi