chore(fw): M56 重编 5 件受源码变动影响的产物 + 钉值回写 + 可复现打包器(0.8.51)
- 重编 netmgrd(M54 ACL)/audiod(M55 BT 增益 + M52 bind 失败即退)/launcherd(M52 multi_font 收口)/ watchdog(M52 资源告警);meow_audio 源码未变,重编逐字节相同(md5 不变) - fw_content.conf:5 条 md5 回写 + meow_power desc 去掉「policy 期3桩」(已实装) - 新增 scripts/build/repack_repro.sh:mksquashfs -repro-time + genisoimage -creation-date + mtime 归一化 + 半成品防护(先写暂存再 mv、体积下限自检) - build_fw_apps.sh:优先走可复现打包器、XIMAGE/TMPDIR 可在干净 checkout/worktree 覆盖 - rebuild_binaries.sh:新增 watchdog 目标(build_watchdog.sh 的 ROOT/.tools 在 worktree 不存在)
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#!/bin/bash
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# ============================================================================
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# repack_repro.sh — .upt 打包(mksquashfs + 分片 md5 链 + ISO),**时间戳可复现**
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#
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# 与 hiby_os_crack/scripts/repack.sh 的产物布局逐字节等价(ota_update.in / ota_v0.ok /
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# ota_config.in / rootfs.squashfs.NNNN.<prev-md5> / ota_md5_rootfs.squashfs.<md5>),
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# 只是把「墙钟时间」从产物里拿掉,使同一输入**连续打包两次逐字节相同**:
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#
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# 1) squashfs:`-repro-time <epoch>`(= -mkfs-time + -inode-time;mksquashfs 4.7 起)。
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# 只加 -all-time 不够 —— 超级块的 mkfs_time 仍是墙钟(M60 实测)。本脚本按
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# `mksquashfs -help-all` 能力探测,依次尝试:
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# -repro-time <t> (4.7+)
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# -mkfs-time <t> -inode-time <t> (4.6)
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# -mkfs-time <t> -all-time <t> (老版本)
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# 都没有 → 告警并按旧口径(体积 + unpack 0 diff + 进包 md5)出货。
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# 2) ISO:genisoimage 的卷创建时间用 `-creation-date <YYYYMMDDhhmmsscc>` 固定,
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# 并把暂存目录里所有文件/目录的 mtime touch 到同一 epoch(ISO 目录记录取文件 mtime)。
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#
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# 用法:
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# repack_repro.sh -i <squashfs-root> -k <xImage> -o <out.upt>
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# SOURCE_DATE_EPOCH=1735689600 覆盖固定时间(默认见 REPRO_EPOCH)。
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# ============================================================================
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set -euo pipefail
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REPRO_EPOCH="${SOURCE_DATE_EPOCH:-1735689600}" # 2025-01-01T00:00:00Z
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TEMP_DIR="${TMPDIR:-/tmp}/meow-repack-repro"
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# 本机(Termux)没有 /usr/bin/mksquashfs:fw 工具集放在 ~/.cache/fwtools/shims
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# (glibc 版 mksquashfs/unsquashfs/genisoimage 经 grun 运行)。
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if ! command -v mksquashfs >/dev/null 2>&1 && [ -d "$HOME/.cache/fwtools/shims" ]; then
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PATH="$HOME/.cache/fwtools/shims:$PATH"
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fi
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show_help() {
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sed -n '2,30p' "$0" | sed 's/^# \{0,1\}//'
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}
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input_root=""
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input_ximage=""
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output_file=""
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while getopts ":i:k:o:h" opt; do
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case "$opt" in
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i) input_root="$OPTARG" ;;
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k) input_ximage="$OPTARG" ;;
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o) output_file="$OPTARG" ;;
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h) show_help; exit 0 ;;
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:) echo "Error: -$OPTARG 需要参数" >&2; exit 1 ;;
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\?) echo "Error: 未知参数 -$OPTARG" >&2; exit 1 ;;
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esac
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done
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[ -n "$input_root" ] || { echo "Error: -i 必填" >&2; exit 1; }
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[ -n "$input_ximage" ] || { echo "Error: -k 必填" >&2; exit 1; }
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[ -n "$output_file" ] || { echo "Error: -o 必填" >&2; exit 1; }
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[ -d "$input_root" ] || { echo "Error: '$input_root' 不存在" >&2; exit 1; }
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[ -f "$input_ximage" ] || { echo "Error: '$input_ximage' 不存在" >&2; exit 1; }
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command -v mksquashfs >/dev/null 2>&1 || { echo "Error: 缺 mksquashfs" >&2; exit 1; }
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command -v genisoimage >/dev/null 2>&1 || echo "WARN: 无 genisoimage,将尝试 mkisofs" >&2
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input_root=$(realpath "$input_root")
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input_ximage=$(realpath "$input_ximage")
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output_file=$(realpath -m "$output_file")
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[ -e "$output_file" ] && rm -f "$output_file"
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ISO_TOOL=genisoimage
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command -v genisoimage >/dev/null 2>&1 || ISO_TOOL=mkisofs
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# ---- squashfs 时间戳参数:按能力探测 ----------------------------------------
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sq_help="$(mksquashfs -help-all 2>/dev/null || mksquashfs -help 2>/dev/null || true)"
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sq_time=()
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# 直接用 case 匹配字符串,**不要**写成 `printf ... | grep -q`:脚本是 set -o pipefail,
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# grep -q 命中后立刻退出 → printf 收 SIGPIPE(141) → 整条管道判失败 → 参数被静默丢掉
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# (M56 踩过一次:ISO 卷时间因此回落成墙钟,两次打包不一致)。
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case "$sq_help" in
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*-repro-time*) sq_time=(-repro-time "$REPRO_EPOCH") ;;
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*-mkfs-time*)
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case "$sq_help" in
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*-inode-time*) sq_time=(-mkfs-time "$REPRO_EPOCH" -inode-time "$REPRO_EPOCH") ;;
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*-all-time*) sq_time=(-mkfs-time "$REPRO_EPOCH" -all-time "$REPRO_EPOCH") ;;
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esac ;;
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esac
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if [ "${#sq_time[@]}" -eq 0 ]; then
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echo "WARN: 本机 mksquashfs 不支持 -mkfs-time/-repro-time —— squashfs 内不含可复现时间戳," >&2
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echo " 只能按旧口径(体积 + unpack 0 diff + 进包 md5)验收。" >&2
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fi
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# genisoimage 1.1.11 的 -creation-date 只吃得下「秒数」形式:传 YYYYMMDDhhmmsscc
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# (本工具 man 里推荐的 16 位串)会直接 *** buffer overflow detected *** 崩掉。
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# 传秒数时 PVD 的 Creation/Modif. Time 都被写成同一时刻(xorriso -pvd_info 可核),
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# 正是可复现需要的样子。
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iso_date="$REPRO_EPOCH"
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iso_time=()
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iso_help="$("$ISO_TOOL" -help 2>&1 || true)"
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case "$iso_help" in
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*-creation-date*) iso_time=(-creation-date "$iso_date") ;;
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esac
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rm -rf "$TEMP_DIR"
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mkdir -p "$TEMP_DIR/ota_v0"
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pushd "$TEMP_DIR/ota_v0" >/dev/null
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echo "### GENERATING NEW SQUASHFS FILES ###"
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echo " mksquashfs 时间参数: ${sq_time[*]:-(无)} epoch=$REPRO_EPOCH"
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mksquashfs "$input_root" rootfs.squashfs -comp lzo -all-root "${sq_time[@]}"
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rootfs_size=$(stat -c%s rootfs.squashfs)
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rootfs_md5=$(md5sum rootfs.squashfs | awk '{print $1}')
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split rootfs.squashfs -d -a 4 -b 512k rootfs.squashfs.
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rm rootfs.squashfs
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md5=$rootfs_md5
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ota_md5_rootfs="ota_md5_rootfs.squashfs.${rootfs_md5}"
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> "$ota_md5_rootfs"
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for part in $(ls rootfs.squashfs.[0-9]* | sort); do
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md5next=$(md5sum "$part" | awk '{print $1}')
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echo "$md5next" >> "$ota_md5_rootfs"
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mv "$part" "$part.$md5"
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md5="$md5next"
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done
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echo "### GENERATING NEW xImage FILES ###"
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cp "$input_ximage" xImage
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ximage_size=$(stat -c%s xImage)
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ximage_md5=$(md5sum xImage | awk '{print $1}')
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split xImage -d -a 4 -b 512k xImage.
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rm xImage
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md5=$ximage_md5
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ota_md5_ximage="ota_md5_xImage.${ximage_md5}"
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> "$ota_md5_ximage"
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for part in $(ls xImage.[0-9]* | sort); do
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md5next=$(md5sum "$part" | awk '{print $1}')
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echo "$md5next" >> "$ota_md5_ximage"
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mv "$part" "$part.$md5"
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md5="$md5next"
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done
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echo "### GENERATING METADATA FILES ###"
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cat > ota_update.in <<-EOM
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ota_version=0
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img_type=kernel
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img_name=xImage
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img_size=${ximage_size}
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img_md5=${ximage_md5}
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img_type=rootfs
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img_name=rootfs.squashfs
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img_size=${rootfs_size}
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img_md5=${rootfs_md5}
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EOM
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echo > ota_v0.ok
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echo "current_version=0" > ../ota_config.in
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echo "### GENERATING FIRMWARE FILE ###"
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# ISO 的目录记录取文件 mtime → 全树归一化到 REPRO_EPOCH(含目录自身;-h 跟随符号链接元数据)。
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find "$TEMP_DIR" -exec touch -h -d "@$REPRO_EPOCH" {} +
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# 先写暂存路径,成功后再 mv 到交付路径:genisoimage 中途 abort(本机 1.1.11 有已知崩溃)
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# 时,交付路径上不会留下「看起来像成品」的残缺 ISO(M56 踩过:28,672 B 半成品)。
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iso_tmp="${TEMP_DIR}.iso" # 暂存在打包树之外(否则 ISO 会把自己读进去)
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"$ISO_TOOL" -o "$iso_tmp" -J -r "${iso_time[@]}" "$TEMP_DIR"
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[ -s "$iso_tmp" ] || { echo "!!! ISO 为空: $iso_tmp" >&2; exit 1; }
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mv -f "$iso_tmp" "$output_file"
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iso_size=$(stat -c%s "$output_file")
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# 反「静默半成品」:ISO 至少要装得下 rootfs 本体(+xImage + 元数据),小了就是没写完。
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[ "$iso_size" -ge "$rootfs_size" ] || {
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echo "!!! ISO 体积 $iso_size B < rootfs $rootfs_size B —— 打包不完整" >&2
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rm -f "$output_file"; exit 1; }
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popd >/dev/null
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rm -rf "$TEMP_DIR"
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echo
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echo "Repacking complete!"
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echo " rootfs.squashfs = ${rootfs_size} B md5=${rootfs_md5}"
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echo " xImage = ${ximage_size} B md5=${ximage_md5}"
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echo " firmware: $output_file"
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