Adolfo Delorenzo
09dcea84ef
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- Add kpartx for reliable loop partition mapping in Docker containers - Fix piCore64 download URL (changed from .img.gz to .zip format) - Fix piCore64 boot partition mount (initramfs on p1, not p2) - Fix tar --wildcards for RPi firmware extraction - Add MIT license (same as KubeSolo) - Add kpartx and unzip to Docker builder image Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
89 lines
3.0 KiB
Bash
Executable File
89 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# fetch-rpi-firmware.sh — Download Raspberry Pi firmware blobs for boot
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#
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# Downloads firmware from the official raspberrypi/firmware GitHub repository.
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# Extracts only the boot files needed: start*.elf, fixup*.dat, DTBs, bootcode.bin.
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#
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# Output: build/cache/rpi-firmware/ containing all required boot files.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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CACHE_DIR="${CACHE_DIR:-$PROJECT_ROOT/build/cache}"
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# shellcheck source=../config/versions.env
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. "$SCRIPT_DIR/../config/versions.env"
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RPI_FW_DIR="$CACHE_DIR/rpi-firmware"
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RPI_FW_ARCHIVE="$CACHE_DIR/rpi-firmware-${RPI_FIRMWARE_TAG}.tar.gz"
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# --- Skip if already fetched ---
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if [ -d "$RPI_FW_DIR" ] && [ -f "$RPI_FW_DIR/start4.elf" ]; then
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echo "==> RPi firmware already cached: $RPI_FW_DIR"
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echo " Files: $(ls "$RPI_FW_DIR" | wc -l)"
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exit 0
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fi
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echo "==> Downloading Raspberry Pi firmware (tag: ${RPI_FIRMWARE_TAG})..."
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mkdir -p "$CACHE_DIR" "$RPI_FW_DIR"
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# --- Download firmware archive ---
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if [ ! -f "$RPI_FW_ARCHIVE" ]; then
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echo " URL: $RPI_FIRMWARE_URL"
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wget -q --show-progress -O "$RPI_FW_ARCHIVE" "$RPI_FIRMWARE_URL" 2>/dev/null || \
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curl -fSL "$RPI_FIRMWARE_URL" -o "$RPI_FW_ARCHIVE"
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echo " Downloaded: $(du -h "$RPI_FW_ARCHIVE" | cut -f1)"
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else
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echo " Archive already cached: $(du -h "$RPI_FW_ARCHIVE" | cut -f1)"
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fi
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# --- Extract boot files only ---
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echo "==> Extracting boot files..."
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TEMP_DIR=$(mktemp -d)
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trap 'rm -rf "$TEMP_DIR"' EXIT
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# Extract only the boot/ directory from the archive
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# Archive structure: firmware-<tag>/boot/...
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tar -xzf "$RPI_FW_ARCHIVE" -C "$TEMP_DIR" --strip-components=1 --wildcards '*/boot/'
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BOOT_SRC="$TEMP_DIR/boot"
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if [ ! -d "$BOOT_SRC" ]; then
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echo "ERROR: boot/ directory not found in firmware archive"
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ls -la "$TEMP_DIR"/
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exit 1
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fi
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# Copy GPU firmware (required for boot)
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for f in "$BOOT_SRC"/start*.elf "$BOOT_SRC"/fixup*.dat; do
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[ -f "$f" ] && cp "$f" "$RPI_FW_DIR/"
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done
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# Copy bootcode.bin (first-stage boot for Pi 3 and older)
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[ -f "$BOOT_SRC/bootcode.bin" ] && cp "$BOOT_SRC/bootcode.bin" "$RPI_FW_DIR/"
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# Copy Device Tree Blobs for Pi 4 + Pi 5
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for dtb in bcm2711-rpi-4-b.dtb bcm2711-rpi-400.dtb bcm2711-rpi-cm4.dtb \
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bcm2712-rpi-5-b.dtb bcm2712d0-rpi-5-b.dtb; do
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[ -f "$BOOT_SRC/$dtb" ] && cp "$BOOT_SRC/$dtb" "$RPI_FW_DIR/"
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done
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# Copy overlays directory (needed for config.txt dtoverlay= directives)
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if [ -d "$BOOT_SRC/overlays" ]; then
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mkdir -p "$RPI_FW_DIR/overlays"
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# Only copy overlays we actually use (disable-wifi, disable-bt)
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for overlay in disable-wifi.dtbo disable-bt.dtbo; do
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[ -f "$BOOT_SRC/overlays/$overlay" ] && \
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cp "$BOOT_SRC/overlays/$overlay" "$RPI_FW_DIR/overlays/"
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done
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fi
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trap - EXIT
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rm -rf "$TEMP_DIR"
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# --- Summary ---
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echo ""
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echo "==> RPi firmware extracted to: $RPI_FW_DIR"
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echo " Files:"
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ls -1 "$RPI_FW_DIR" | head -20
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echo " Total size: $(du -sh "$RPI_FW_DIR" | cut -f1)"
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