168 lines
4.1 KiB
Bash
Executable File
168 lines
4.1 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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MNT=/mnt
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CONFIG_MNT=/mnt-config
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USB_DEV=/dev/sda
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EMMC_DEV=/dev/mmcblk0
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EMMC_CONFIG_PART=/dev/mmcblk0p1
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EMMC_ROOTFS_A_PART=/dev/mmcblk0p2
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EMMC_ROOTFS_B_PART=/dev/mmcblk0p3
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EMMC_DATA_PART=/dev/mmcblk0p4
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DEFAULT_GLOB="${MNT}/${BUILD_TAG}_RELEASE_IMAGE"
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cleanup() {
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umount "$CONFIG_MNT" 2>/dev/null || true
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umount "$MNT" 2>/dev/null || true
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}
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log() {
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echo "[*] $*"
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}
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warn() {
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echo "[!] $*" >&2
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}
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die() {
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echo "[!] ERROR: $*" >&2
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exit 1
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}
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reread_partitions() {
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log "Re-reading partition table..."
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blockdev --rereadpt "$EMMC_DEV" 2>/dev/null || true
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partprobe "$EMMC_DEV" 2>/dev/null || true
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partx -u "$EMMC_DEV" 2>/dev/null || true
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mdev -s 2>/dev/null || true
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}
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get_sectors() {
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devname="${1##*/}"
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cat "/sys/class/block/$devname/size" 2>/dev/null || echo 0
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}
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wait_for_partition_ready() {
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part="$1"
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timeout="${2:-15}"
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i=0
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while [ "$i" -lt "$timeout" ]; do
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if [ -b "$part" ]; then
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sectors="$(get_sectors "$part")"
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if [ "${sectors:-0}" -gt 0 ]; then
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log "Partition $part is present with $sectors sectors"
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return 0
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fi
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fi
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i=$((i + 1))
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sleep 1
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done
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return 1
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}
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mkdir -p "$MNT" "$CONFIG_MNT"
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trap cleanup EXIT
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log "Mounting USB..."
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mount "$USB_DEV" "$MNT"
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# Find a default image (first match)
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DEFAULT_IMG="$(ls $DEFAULT_GLOB 2>/dev/null | head -n1 || true)"
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echo
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if [ -n "$DEFAULT_IMG" ]; then
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echo "Default image found:"
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echo " $DEFAULT_IMG"
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else
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echo "No default image found under $DEFAULT_GLOB"
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fi
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echo
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printf "Image Location (%s): " "${DEFAULT_IMG:-/mnt/...}"
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read -r IMG
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if [ -z "$IMG" ]; then
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IMG="$DEFAULT_IMG"
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fi
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[ -n "$IMG" ] || die "No image selected"
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[ -f "$IMG" ] || die "Invalid image: $IMG"
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echo
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echo "Looking for env files on USB..."
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ENV_FILES="$(find "$MNT" -maxdepth 1 -type f -name '*.env' | sort || true)"
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if [ -n "$ENV_FILES" ]; then
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echo "Found env files:"
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echo "$ENV_FILES" | sed 's/^/ /'
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else
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echo "No *.env files found in $MNT"
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fi
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echo
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echo "About to write:"
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echo " Image: $IMG"
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echo " Target: $EMMC_DEV"
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echo
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printf "Type 'YES' to continue: "
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read -r CONFIRM
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[ "$CONFIRM" = "YES" ] || die "Aborted."
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log "Flashing image to eMMC..."
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gunzip -c "$IMG" > "$EMMC_DEV"
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log "Syncing flash write..."
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sync
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reread_partitions
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log "Waiting for partition nodes..."
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if ! wait_for_partition_ready "$EMMC_CONFIG_PART" 15; then
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warn "Initial partition scan did not settle; retrying after another reread..."
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reread_partitions
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sleep 2
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wait_for_partition_ready "$EMMC_CONFIG_PART" 15 || die "config partition not ready: $EMMC_CONFIG_PART"
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fi
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# These are useful sanity checks, but not strictly required for copying config.
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wait_for_partition_ready "$EMMC_ROOTFS_A_PART" 5 || warn "rootfsA partition not ready yet: $EMMC_ROOTFS_A_PART"
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wait_for_partition_ready "$EMMC_ROOTFS_B_PART" 5 || warn "rootfsB partition not ready yet: $EMMC_ROOTFS_B_PART"
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wait_for_partition_ready "$EMMC_DATA_PART" 5 || warn "data partition not ready yet: $EMMC_DATA_PART"
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log "Partition sizes:"
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echo " $(basename "$EMMC_DEV"): $(get_sectors "$EMMC_DEV") sectors"
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echo " $(basename "$EMMC_CONFIG_PART"): $(get_sectors "$EMMC_CONFIG_PART") sectors"
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echo " $(basename "$EMMC_ROOTFS_A_PART"): $(get_sectors "$EMMC_ROOTFS_A_PART") sectors"
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echo " $(basename "$EMMC_ROOTFS_B_PART"): $(get_sectors "$EMMC_ROOTFS_B_PART") sectors"
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echo " $(basename "$EMMC_DATA_PART"): $(get_sectors "$EMMC_DATA_PART") sectors"
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if [ -n "$ENV_FILES" ]; then
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log "Mounting flashed config partition..."
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mount -t vfat "$EMMC_CONFIG_PART" "$CONFIG_MNT" || {
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warn "Mount failed; retrying once after partition reread..."
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reread_partitions
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sleep 2
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mount -t vfat "$EMMC_CONFIG_PART" "$CONFIG_MNT"
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}
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log "Copying env files to config partition..."
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for f in $ENV_FILES; do
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base="$(basename "$f")"
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cp "$f" "$CONFIG_MNT/$base"
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echo " copied: $base"
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done
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log "Syncing copied config..."
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sync
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umount "$CONFIG_MNT"
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fi
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log "Done."
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log "Rebooting..."
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reboot -f |