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https://github.com/kernelkit/infix.git
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board/rpi: support standalone run of mkimage.sh
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg
@@ -1,6 +1,152 @@
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#!/bin/sh
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set -e
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usage()
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{
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cat <<EOF
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Create Raspberry Pi 4 SD card image from build artifacts.
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Usage:
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$0 [OPTIONS]
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Options:
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-h This help text
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-b boot-dir Path to bootloader build directory, default: O= or output/
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-r root-dir Path to Linux rootfs.squashfs, default O= or output/
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Description:
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When called without arguments (from Buildroot), uses environment variables:
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BINARIES_DIR, BUILD_DIR, BR2_EXTERNAL_INFIX_PATH, RELEASE, INFIX_ID
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When called with arguments, sets up standalone mode and combines artifacts
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from separate boot and rootfs sources.
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Output:
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The resulting SD card image is saved to boot-dir/images/*-sdcard.img
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Examples:
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# Using separate build directories:
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$0 -b x-boot -r output
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# Using a rootfs file directly:
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$0 -b x-boot -r ~/Downloads/rootfs.squashfs
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EOF
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}
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getconfig()
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{
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[ -f .config ] || return 1
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grep "^$1=" .config | sed -e "s/$1=\"\?\([^\"]*\)\"\?/\1/"
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}
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find_build_dir()
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{
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# Check O= environment variable first
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if [ -n "$O" ] && [ -f "$O/.config" ]; then
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echo "$O"
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return 0
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fi
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# Check output/ directory
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if [ -f "output/.config" ]; then
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echo "output"
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return 0
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fi
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return 1
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}
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# Parse command line options
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STANDALONE=0
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while getopts "hb:r:" flag; do
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case "${flag}" in
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h) usage; exit 0;;
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b) BOOT_DIR=${OPTARG}; STANDALONE=1;;
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r) ROOT_DIR=${OPTARG}; STANDALONE=1;;
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*) usage; exit 1;;
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esac
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done
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# Standalone mode: set up environment from build directories
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if [ "$STANDALONE" -eq 1 ] || [ $# -gt 0 ]; then
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STANDALONE=1
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# Find BR2_EXTERNAL_INFIX_PATH (current script is in src/board/raspberry-pi-4/)
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SCRIPT_DIR=$(dirname "$0")
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BR2_EXTERNAL_INFIX_PATH=$(cd "$SCRIPT_DIR/../../.." && pwd)
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# Find boot directory if not specified (try common patterns)
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if [ -z "$BOOT_DIR" ]; then
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for dir in x-boot build-boot output-boot; do
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if [ -f "$dir/.config" ]; then
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BOOT_DIR="$dir"
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break
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fi
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done
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if [ -z "$BOOT_DIR" ]; then
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BOOT_DIR=$(find_build_dir) || {
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echo "Error: Could not find boot directory. Use -b option" >&2
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exit 1
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}
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fi
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fi
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# Find rootfs if not specified
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if [ -z "$ROOT_DIR" ]; then
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ROOT_DIR=$(find_build_dir) || {
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echo "Error: Could not find rootfs directory. Set O= or use -r option" >&2
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exit 1
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}
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fi
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# Set up environment variables (use BOOT_DIR as base)
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export BINARIES_DIR="$BOOT_DIR/images"
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export BUILD_DIR="$BOOT_DIR/build"
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export BR2_EXTERNAL_INFIX_PATH
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export RELEASE=${RELEASE:-""}
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export INFIX_ID=${INFIX_ID:-"infix"}
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# Add host tools to PATH (for genimage, etc.)
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for dir in "$BOOT_DIR" "$ROOT_DIR"; do
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if [ -d "$dir/host/bin" ]; then
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export PATH="$dir/host/bin:$PATH"
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break
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fi
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done
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# Copy rootfs and partition images to boot directory
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mkdir -p "$BINARIES_DIR"
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if [ -f "$ROOT_DIR" ]; then
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# Direct path to rootfs.squashfs file
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echo "Copying rootfs from $ROOT_DIR to $BINARIES_DIR/rootfs.squashfs"
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cp "$ROOT_DIR" "$BINARIES_DIR/rootfs.squashfs"
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elif [ -f "$ROOT_DIR/images/rootfs.squashfs" ]; then
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# Build directory with images/ - copy rootfs and partition images
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echo "Copying rootfs and partitions from $ROOT_DIR/images/ to $BINARIES_DIR/"
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cp "$ROOT_DIR/images/rootfs.squashfs" "$BINARIES_DIR/"
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# Copy partition images (aux.ext4, cfg.ext4, var.ext4) if they exist
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for img in aux.ext4 cfg.ext4 var.ext4; do
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if [ -f "$ROOT_DIR/images/$img" ]; then
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cp "$ROOT_DIR/images/$img" "$BINARIES_DIR/"
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fi
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done
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elif [ -f "$ROOT_DIR/rootfs.squashfs" ]; then
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# Directory directly containing rootfs.squashfs
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echo "Copying rootfs from $ROOT_DIR/rootfs.squashfs to $BINARIES_DIR/"
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cp "$ROOT_DIR/rootfs.squashfs" "$BINARIES_DIR/"
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# Copy partition images if they exist in same directory
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for img in aux.ext4 cfg.ext4 var.ext4; do
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if [ -f "$ROOT_DIR/$img" ]; then
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cp "$ROOT_DIR/$img" "$BINARIES_DIR/"
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fi
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done
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else
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echo "Error: Could not find rootfs.squashfs in $ROOT_DIR" >&2
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exit 1
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fi
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fi
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BOARD_DIR=$(dirname "$0")
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GENIMAGE_CFG="${BUILD_DIR}/genimage.cfg"
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GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
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@@ -9,36 +155,57 @@ GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
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# key and our ixboot scripts. Make sure here they are installed in the
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# proper directory so genimage can create the DOS partition the SPL
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# reads config.txt from.
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find "${BINARIES_DIR}" -type f -name '*.dtbo' -exec mv '{}' "${BINARIES_DIR}/rpi-firmware/overlays/" \;
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find "${BINARIES_DIR}" -type f -name '*.dtbo' ! -path "${BINARIES_DIR}/rpi-firmware/overlays/*" -exec \
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mv '{}' "${BINARIES_DIR}/rpi-firmware/overlays/" \;
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# Create FILES array for the genimage.cfg generation
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FILES=""
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for f in "${BINARIES_DIR}"/rpi-firmware/*; do
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case "$f" in
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*~|*.bak) continue ;;
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*~ | *.bak)
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continue
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;;
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esac
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echo "${FILES}" | grep -q `basename $f` && continue # If already exist it has been added by us.
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# If already exist it has been added by us.
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echo "${FILES}" | grep -q "$(basename "$f")" && continue
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FILES="${FILES}\t\t\t\"${f#"${BINARIES_DIR}/"}\",\n"
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done
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FILES="${FILES}\t\t\t\"splash.bmp\",\n"
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echo $FILES
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KERNEL=$(sed -n 's/^kernel=//p' "${BINARIES_DIR}/rpi-firmware/config.txt")
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FILES="${FILES}\t\t\t\"${KERNEL}\""
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# Create genimage.cfg from template .in
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sed "s|#BOOT_FILES#|${FILES}|" "${BOARD_DIR}/genimage.cfg.in" | \
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sed "s|#INFIX_ID#|${INFIX_ID}|" | \
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sed "s|#VERSION#|${RELEASE}|" > "${GENIMAGE_CFG}"
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# Create temporary root path
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ROOTPATH_TMP=$(mktemp -d)
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trap 'rm -rf \"$ROOTPATH_TMP\"' EXIT
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# Clean previous genimage temp directory
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rm -rf "${GENIMAGE_TMP}"
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# Generate the SD card image
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genimage \
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--rootpath "${ROOTPATH_TMP}" \
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--tmppath "${GENIMAGE_TMP}" \
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--inputpath "${BINARIES_DIR}" \
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--outputpath "${BINARIES_DIR}" \
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--config "${GENIMAGE_CFG}"
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# Print the resulting image path
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if [ "$STANDALONE" -eq 1 ]; then
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echo ""
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echo "SD card image created successfully:"
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for img in "${BINARIES_DIR}"/*-sdcard.img; do
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if [ -f "$img" ]; then
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# Get relative path from current directory
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rel_path=$(realpath --relative-to="$PWD" "$img" 2>/dev/null || echo "$img")
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echo " $rel_path"
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fi
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done
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fi
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