159 lines
6.3 KiB
Bash
159 lines
6.3 KiB
Bash
#!/bin/sh
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# build-nvidia-module.sh — compile NVIDIA proprietary driver modules for Debian 12
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#
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# Downloads the official NVIDIA .run installer, extracts kernel modules and
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# userspace tools (nvidia-smi, libnvidia-ml). Everything is proprietary NVIDIA.
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#
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# Output is cached in DIST_DIR/nvidia-<version>-<kver>/ so subsequent builds
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# are instant unless NVIDIA_DRIVER_VERSION or kernel version changes.
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#
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# Output layout:
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# $CACHE_DIR/modules/ — nvidia*.ko files
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# $CACHE_DIR/bin/ — nvidia-smi, nvidia-debugdump
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# $CACHE_DIR/lib/ — libnvidia-ml.so*, libcuda.so* (for nvidia-smi)
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set -e
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NVIDIA_VERSION="$1"
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DIST_DIR="$2"
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DEBIAN_KERNEL_ABI="$3"
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[ -n "$NVIDIA_VERSION" ] || { echo "usage: $0 <nvidia-version> <dist-dir> <debian-kernel-abi>"; exit 1; }
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[ -n "$DIST_DIR" ] || { echo "usage: $0 <nvidia-version> <dist-dir> <debian-kernel-abi>"; exit 1; }
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[ -n "$DEBIAN_KERNEL_ABI" ] || { echo "usage: $0 <nvidia-version> <dist-dir> <debian-kernel-abi>"; exit 1; }
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KVER="${DEBIAN_KERNEL_ABI}-amd64"
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# On Debian, kernel headers are split into two packages:
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# linux-headers-<kver> — arch-specific (generated, Makefile)
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# linux-headers-<kver>-common — common source headers (linux/, asm-generic/, etc.)
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# NVIDIA conftest needs SYSSRC pointing to common (for source headers like linux/mm.h)
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# and SYSOUT pointing to amd64 (for generated headers like autoconf.h, asm/).
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KDIR_ARCH="/usr/src/linux-headers-${KVER}"
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KDIR_COMMON="/usr/src/linux-headers-${DEBIAN_KERNEL_ABI}-common"
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echo "=== NVIDIA ${NVIDIA_VERSION} (proprietary) for kernel ${KVER} ==="
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if [ ! -d "$KDIR_ARCH" ] || [ ! -d "$KDIR_COMMON" ]; then
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echo "=== installing linux-headers-${KVER} ==="
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DEBIAN_FRONTEND=noninteractive apt-get install -y \
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"linux-headers-${KVER}" \
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gcc make perl
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fi
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echo "kernel headers (arch): $KDIR_ARCH"
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echo "kernel headers (common): $KDIR_COMMON"
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CACHE_DIR="${DIST_DIR}/nvidia-${NVIDIA_VERSION}-${KVER}"
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if [ -d "$CACHE_DIR/modules" ] && [ -f "$CACHE_DIR/bin/nvidia-smi" ]; then
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echo "=== NVIDIA cached, skipping build ==="
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echo "cache: $CACHE_DIR"
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echo "modules: $(ls "$CACHE_DIR/modules/"*.ko 2>/dev/null | wc -l) .ko files"
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exit 0
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fi
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# Download official NVIDIA .run installer with sha256 verification
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BASE_URL="https://download.nvidia.com/XFree86/Linux-x86_64/${NVIDIA_VERSION}"
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RUN_FILE="/var/tmp/NVIDIA-Linux-x86_64-${NVIDIA_VERSION}.run"
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SHA_FILE="/var/tmp/NVIDIA-Linux-x86_64-${NVIDIA_VERSION}.run.sha256sum"
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verify_run() {
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[ -s "$SHA_FILE" ] || return 1
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[ -s "$RUN_FILE" ] || return 1
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cd /var/tmp
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sha256sum -c "$SHA_FILE" --status 2>/dev/null
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}
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if ! verify_run; then
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rm -f "$RUN_FILE" "$SHA_FILE"
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echo "=== downloading NVIDIA ${NVIDIA_VERSION} installer ==="
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wget -q -O "$SHA_FILE" "${BASE_URL}/NVIDIA-Linux-x86_64-${NVIDIA_VERSION}.run.sha256sum"
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echo "sha256: $(cat "$SHA_FILE")"
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wget --show-progress -O "$RUN_FILE" "${BASE_URL}/NVIDIA-Linux-x86_64-${NVIDIA_VERSION}.run"
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echo "=== verifying sha256 ==="
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cd /var/tmp && sha256sum -c "$SHA_FILE" || { echo "ERROR: sha256 mismatch"; rm -f "$RUN_FILE"; exit 1; }
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echo "sha256 OK"
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else
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echo "=== NVIDIA installer verified from cache ==="
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fi
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# Extract installer contents
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echo "=== extracting installer ==="
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chmod +x "$RUN_FILE"
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EXTRACT_DIR="/var/tmp/nvidia-extract-${NVIDIA_VERSION}"
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rm -rf "$EXTRACT_DIR"
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"$RUN_FILE" --extract-only --target "$EXTRACT_DIR"
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# Find kernel source directory (proprietary: kernel/, open: kernel-open/)
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KERNEL_SRC=""
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for d in "$EXTRACT_DIR/kernel" "$EXTRACT_DIR/kernel-modules-sources" "$EXTRACT_DIR/kernel-source"; do
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[ -f "$d/Makefile" ] && KERNEL_SRC="$d" && break
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done
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[ -n "$KERNEL_SRC" ] || { echo "ERROR: kernel source dir not found in:"; ls "$EXTRACT_DIR/"; exit 1; }
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echo "kernel source: $KERNEL_SRC"
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# Build kernel modules
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# CFLAGS_MODULE: add GCC include dir so NVIDIA's nv_stdarg.h can find stdarg.h.
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# Kernel build uses -nostdinc which strips GCC's own includes; we restore it here.
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echo "=== building kernel modules ($(nproc) cores) ==="
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cd "$KERNEL_SRC"
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# SYSSRC=common: conftest finds real kernel headers (linux/mm.h etc.)
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# SYSOUT=amd64: generated headers (autoconf.h, asm/) from arch package
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# Without this split, conftest uses amd64/include/ which is nearly empty,
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# all compile-tests fail silently, and NVIDIA assumes all APIs present → link errors.
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make -j$(nproc) \
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KERNEL_UNAME="$KVER" \
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SYSSRC="$KDIR_COMMON" \
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SYSOUT="$KDIR_ARCH" \
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modules 2>&1 | tail -10
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# Collect outputs
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mkdir -p "$CACHE_DIR/modules" "$CACHE_DIR/bin" "$CACHE_DIR/lib"
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find "$KERNEL_SRC" -name '*.ko' -exec cp {} "$CACHE_DIR/modules/" \;
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for ko in "$CACHE_DIR/modules/"*.ko; do
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strip --strip-debug "$ko" 2>/dev/null || true
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done
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cp "$EXTRACT_DIR/nvidia-smi" "$CACHE_DIR/bin/"
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cp "$EXTRACT_DIR/nvidia-bug-report.sh" "$CACHE_DIR/bin/" 2>/dev/null || true
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# Copy GSP firmware (required for Hopper/Ada GPUs — H100, H800, etc.)
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mkdir -p "$CACHE_DIR/firmware"
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if [ -d "$EXTRACT_DIR/firmware" ]; then
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cp -r "$EXTRACT_DIR/firmware/." "$CACHE_DIR/firmware/"
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echo "firmware: $(ls "$CACHE_DIR/firmware/" | wc -l) files"
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else
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echo "WARNING: no firmware/ dir found in installer (may be needed for Hopper GPUs)"
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fi
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# Copy ALL userspace library files
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for lib in libnvidia-ml libcuda; do
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count=0
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for f in $(find "$EXTRACT_DIR" -maxdepth 1 -name "${lib}.so.*" 2>/dev/null); do
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cp "$f" "$CACHE_DIR/lib/" && count=$((count+1))
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done
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if [ "$count" -eq 0 ]; then
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echo "ERROR: ${lib}.so.* not found in $EXTRACT_DIR"
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ls "$EXTRACT_DIR/"*.so* 2>/dev/null | head -20 || true
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exit 1
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fi
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done
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# Verify .ko files were built
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ko_count=$(ls "$CACHE_DIR/modules/"*.ko 2>/dev/null | wc -l)
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[ "$ko_count" -gt 0 ] || { echo "ERROR: no .ko files built in $CACHE_DIR/modules/"; exit 1; }
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# Create soname symlinks: use [0-9][0-9]* to avoid circular symlink (.so.1 has single digit)
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for lib in libnvidia-ml libcuda; do
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versioned=$(ls "$CACHE_DIR/lib/${lib}.so."[0-9][0-9]* 2>/dev/null | head -1)
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[ -n "$versioned" ] || continue
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base=$(basename "$versioned")
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ln -sf "$base" "$CACHE_DIR/lib/${lib}.so.1"
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ln -sf "${lib}.so.1" "$CACHE_DIR/lib/${lib}.so" 2>/dev/null || true
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echo "${lib}: .so.1 -> $base"
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done
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echo "=== NVIDIA build complete ==="
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echo "cache: $CACHE_DIR"
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echo "modules: $ko_count .ko files"
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ls -lh "$CACHE_DIR/bin/" "$CACHE_DIR/lib/"
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