feat: optimize connect
This commit is contained in:
parent
ad29ff030e
commit
c7f6e86633
@ -19,10 +19,15 @@ EMMC_DEV="/dev/mmcblk0"
|
||||
USB_DIR="/mnt/XIN_USB/rock5c"
|
||||
OUTPUT_FILE="${USB_DIR}/rock5c_emmc_$(date +%Y%m%d_%H%M%S).img"
|
||||
|
||||
info_msg "从SD卡备份eMMC..."
|
||||
info_msg "从SD卡备份eMMC (智能压缩版)..."
|
||||
info_msg "eMMC设备: ${EMMC_DEV}"
|
||||
info_msg "输出到: ${OUTPUT_FILE}"
|
||||
|
||||
# 获取原始eMMC大小
|
||||
ORIGINAL_SIZE=$(blockdev --getsize64 ${EMMC_DEV})
|
||||
ORIGINAL_SIZE_GB=$((ORIGINAL_SIZE / 1073741824))
|
||||
info_msg "原始eMMC大小: ${ORIGINAL_SIZE_GB}GB"
|
||||
|
||||
# 检查设备
|
||||
[[ -b "${EMMC_DEV}" ]] || error_msg "eMMC设备不存在: ${EMMC_DEV}"
|
||||
[[ -d "${USB_DIR}" ]] || error_msg "USB目录不存在: ${USB_DIR}"
|
||||
@ -43,70 +48,123 @@ info_msg "检查eMMC数据使用量..."
|
||||
TEMP_MOUNT="/tmp/check_emmc"
|
||||
mkdir -p "${TEMP_MOUNT}"
|
||||
|
||||
# 检查分区是否存在
|
||||
[[ -b "${EMMC_DEV}p1" ]] || error_msg "未找到boot分区 ${EMMC_DEV}p1"
|
||||
[[ -b "${EMMC_DEV}p2" ]] || error_msg "未找到root分区 ${EMMC_DEV}p2"
|
||||
|
||||
# 临时挂载检查使用量
|
||||
mount ${EMMC_DEV}p2 "${TEMP_MOUNT}" -o ro
|
||||
EMMC_USED=$(df --block-size=1M "${TEMP_MOUNT}" | tail -1 | awk '{print $3}')
|
||||
mount ${EMMC_DEV}p1 "${TEMP_MOUNT}" -o ro
|
||||
EMMC_BOOT_USED=$(df --block-size=1M "${TEMP_MOUNT}" | tail -1 | awk '{print $3}')
|
||||
umount "${TEMP_MOUNT}"
|
||||
|
||||
mount ${EMMC_DEV}p1 "${TEMP_MOUNT}" -o ro
|
||||
EMMC_BOOT_USED=$(df --block-size=1M "${TEMP_MOUNT}" | tail -1 | awk '{print $3}')
|
||||
mount ${EMMC_DEV}p2 "${TEMP_MOUNT}" -o ro
|
||||
EMMC_ROOT_USED=$(df --block-size=1M "${TEMP_MOUNT}" | tail -1 | awk '{print $3}')
|
||||
umount "${TEMP_MOUNT}"
|
||||
|
||||
rm -rf "${TEMP_MOUNT}"
|
||||
|
||||
info_msg "eMMC使用情况: Root ${EMMC_USED}MB + Boot ${EMMC_BOOT_USED}MB"
|
||||
TOTAL_USED=$((EMMC_BOOT_USED + EMMC_ROOT_USED))
|
||||
info_msg "eMMC使用情况: Boot ${EMMC_BOOT_USED}MB + Root ${EMMC_ROOT_USED}MB = 总计 ${TOTAL_USED}MB"
|
||||
MIN_TARGET_SIZE=$((TOTAL_USED + 1024)) # 需要1GB额外空间
|
||||
info_msg "最小目标eMMC: ${MIN_TARGET_SIZE}MB (约$((MIN_TARGET_SIZE / 1024))GB)"
|
||||
|
||||
# 步骤2: 智能收缩eMMC分区
|
||||
info_msg "步骤2: 智能收缩eMMC分区..."
|
||||
|
||||
# 记录原始分区信息
|
||||
parted -s ${EMMC_DEV} unit s print > "${USB_DIR}/original_partition.txt"
|
||||
P1_START=$(parted -s ${EMMC_DEV} unit s print | grep "^ 1" | awk '{print $2}' | sed 's/s$//')
|
||||
P1_END=$(parted -s ${EMMC_DEV} unit s print | grep "^ 1" | awk '{print $3}' | sed 's/s$//')
|
||||
P2_START=$(parted -s ${EMMC_DEV} unit s print | grep "^ 2" | awk '{print $2}' | sed 's/s$//')
|
||||
ORIGINAL_P2_END=$(parted -s ${EMMC_DEV} unit s print | grep "^ 2" | awk '{print $3}' | sed 's/s$//')
|
||||
|
||||
info_msg "分区布局: P1=${P1_START}s-${P1_END}s, P2=${P2_START}s-${ORIGINAL_P2_END}s"
|
||||
|
||||
# 文件系统检查
|
||||
e2fsck -f -y ${EMMC_DEV}p2
|
||||
|
||||
# 先尝试收缩到最小值
|
||||
info_msg "计算文件系统最小大小..."
|
||||
resize2fs -M ${EMMC_DEV}p2
|
||||
resize2fs -M ${EMMC_DEV}p2 2>&1 | tee /tmp/resize.log
|
||||
|
||||
# 获取收缩后的实际大小
|
||||
FS_SIZE_BLOCKS=$(dumpe2fs -h ${EMMC_DEV}p2 2>/dev/null | grep "^Block count:" | awk '{print $3}')
|
||||
FS_SIZE_MB=$(( (FS_SIZE_BLOCKS * 4) / 1024 + 200 )) # 块大小4KB + 200MB缓冲
|
||||
BLOCK_SIZE=$(dumpe2fs -h ${EMMC_DEV}p2 2>/dev/null | grep "^Block size:" | awk '{print $3}')
|
||||
|
||||
# 添加默认值防止空值
|
||||
[[ -z "$FS_SIZE_BLOCKS" ]] && FS_SIZE_BLOCKS=1048576 # 默认4GB worth of blocks
|
||||
[[ -z "$BLOCK_SIZE" ]] && BLOCK_SIZE=4096 # 默认4K
|
||||
|
||||
FS_SIZE_MB=$(( (FS_SIZE_BLOCKS * BLOCK_SIZE) / 1048576 ))
|
||||
|
||||
info_msg "文件系统最小大小: ${FS_SIZE_MB}MB"
|
||||
|
||||
# 扩展一点给缓冲空间
|
||||
SHRINK_TARGET=$((FS_SIZE_MB + 300))
|
||||
# 添加缓冲空间确保系统能正常运行
|
||||
SHRINK_TARGET=$((FS_SIZE_MB + 512)) # 512MB缓冲
|
||||
resize2fs ${EMMC_DEV}p2 ${SHRINK_TARGET}M
|
||||
|
||||
# 收缩分区
|
||||
P2_START=$(parted -s ${EMMC_DEV} unit B print | grep "^ 2" | awk '{print $2}' | sed 's/B$//')
|
||||
NEW_P2_END=$((P2_START + SHRINK_TARGET * 1048576))
|
||||
|
||||
# 记录原始分区信息
|
||||
parted -s ${EMMC_DEV} unit B print > "${USB_DIR}/emmc_original_layout.txt"
|
||||
ORIGINAL_P2_END=$(parted -s ${EMMC_DEV} unit B print | grep "^ 2" | awk '{print $3}' | sed 's/B$//')
|
||||
# 计算新的分区结束位置(扇区)
|
||||
NEW_P2_END_SECTORS=$((P2_START + (SHRINK_TARGET * 1048576 / 512)))
|
||||
|
||||
# 重新创建收缩的分区
|
||||
parted -s ${EMMC_DEV} rm 2
|
||||
parted -s ${EMMC_DEV} mkpart primary ext4 ${P2_START}B ${NEW_P2_END}B
|
||||
parted -s ${EMMC_DEV} unit s mkpart primary ext4 ${P2_START}s ${NEW_P2_END_SECTORS}s
|
||||
|
||||
info_msg "✅ eMMC分区已收缩"
|
||||
partprobe ${EMMC_DEV}
|
||||
sleep 2
|
||||
|
||||
# 步骤3: 备份收缩后的eMMC
|
||||
info_msg "步骤3: 备份收缩后的eMMC..."
|
||||
BACKUP_SIZE_MB=$(( (NEW_P2_END / 1048576) + 100 ))
|
||||
dd if=${EMMC_DEV} of="${OUTPUT_FILE}" bs=1M count=${BACKUP_SIZE_MB} status=progress
|
||||
info_msg "✅ eMMC分区已收缩到 ${SHRINK_TARGET}MB"
|
||||
|
||||
# 步骤3: 创建备份信息文件
|
||||
info_msg "步骤3: 创建备份信息..."
|
||||
|
||||
cat > "${OUTPUT_FILE}.info" <<EOF
|
||||
#!/bin/bash
|
||||
# 备份信息文件 - 用于智能恢复
|
||||
BACKUP_DATE="$(date)"
|
||||
SOURCE_SIZE_GB=${ORIGINAL_SIZE_GB}
|
||||
DATA_USED_MB=${TOTAL_USED}
|
||||
MIN_TARGET_SIZE_MB=${MIN_TARGET_SIZE}
|
||||
|
||||
# 分区信息
|
||||
P1_START=${P1_START}
|
||||
P1_END=${P1_END}
|
||||
P2_START=${P2_START}
|
||||
P2_SHRUNK_END=${NEW_P2_END_SECTORS}
|
||||
ORIGINAL_P2_END=${ORIGINAL_P2_END}
|
||||
EOF
|
||||
|
||||
# 步骤4: 备份收缩后的eMMC
|
||||
info_msg "步骤4: 备份收缩后的eMMC..."
|
||||
# 确保包含完整的GPT备份表（通常在磁盘末尾）
|
||||
# GPT需要首尾各34个扇区，再加一些缓冲
|
||||
BACKUP_SIZE_SECTORS=$((NEW_P2_END_SECTORS + 34 + 2048)) # 34扇区GPT + 1MB额外缓冲
|
||||
BACKUP_SIZE_MB=$((BACKUP_SIZE_SECTORS * 512 / 1048576))
|
||||
|
||||
info_msg "备份大小: ${BACKUP_SIZE_MB}MB (原始: ${ORIGINAL_SIZE_GB}GB, 可恢复到: ≥${MIN_TARGET_SIZE}MB)"
|
||||
|
||||
dd if=${EMMC_DEV} of="${OUTPUT_FILE}" bs=512 count=${BACKUP_SIZE_SECTORS} status=progress
|
||||
|
||||
# 修复GPT备份表
|
||||
info_msg "修复备份镜像的GPT表..."
|
||||
sgdisk -e "${OUTPUT_FILE}" 2>/dev/null || true
|
||||
|
||||
info_msg "✅ eMMC备份完成"
|
||||
|
||||
# 步骤4: 恢复eMMC原始大小
|
||||
info_msg "步骤4: 恢复eMMC原始分区大小..."
|
||||
# 步骤5: 恢复eMMC原始大小
|
||||
info_msg "步骤5: 恢复eMMC原始分区大小..."
|
||||
parted -s ${EMMC_DEV} rm 2
|
||||
parted -s ${EMMC_DEV} mkpart primary ext4 ${P2_START}B ${ORIGINAL_P2_END}B
|
||||
parted -s ${EMMC_DEV} unit s mkpart primary ext4 ${P2_START}s ${ORIGINAL_P2_END}s
|
||||
|
||||
partprobe ${EMMC_DEV}
|
||||
sleep 2
|
||||
|
||||
resize2fs ${EMMC_DEV}p2
|
||||
|
||||
info_msg "✅ eMMC已恢复原始大小"
|
||||
info_msg "✅ eMMC已恢复原始大小 ${ORIGINAL_SIZE_GB}GB"
|
||||
|
||||
# 验证备份镜像
|
||||
info_msg "步骤5: 验证备份镜像..."
|
||||
info_msg "步骤6: 验证备份镜像..."
|
||||
LOOP_DEV=$(losetup -P -f --show "${OUTPUT_FILE}")
|
||||
sleep 3
|
||||
|
||||
@ -126,18 +184,77 @@ losetup -d "${LOOP_DEV}"
|
||||
FINAL_SIZE=$(du -h "${OUTPUT_FILE}" | cut -f1)
|
||||
FINAL_SIZE_ACTUAL=$(du --apparent-size -h "${OUTPUT_FILE}" | cut -f1)
|
||||
|
||||
# 创建智能恢复脚本
|
||||
RESTORE_SCRIPT="${USB_DIR}/restore_adaptive.sh"
|
||||
cat > "${RESTORE_SCRIPT}" <<'RESTORE_EOF'
|
||||
#!/bin/bash
|
||||
# 自适应恢复脚本 - 支持不同大小的eMMC
|
||||
|
||||
set -e
|
||||
IMAGE_FILE="$1"
|
||||
TARGET_DEV="/dev/mmcblk0"
|
||||
|
||||
[[ -f "${IMAGE_FILE}" ]] || { echo "用法: $0 <镜像文件>"; exit 1; }
|
||||
[[ -f "${IMAGE_FILE}.info" ]] || { echo "缺少信息文件"; exit 1; }
|
||||
|
||||
source "${IMAGE_FILE}.info"
|
||||
|
||||
echo "恢复镜像到eMMC"
|
||||
echo "目标设备: ${TARGET_DEV}"
|
||||
|
||||
TARGET_SIZE=$(blockdev --getsize64 ${TARGET_DEV})
|
||||
TARGET_SIZE_MB=$((TARGET_SIZE / 1048576))
|
||||
|
||||
echo "目标eMMC: $((TARGET_SIZE / 1073741824))GB"
|
||||
|
||||
if [[ ${TARGET_SIZE_MB} -lt ${MIN_TARGET_SIZE_MB} ]]; then
|
||||
echo "错误: 目标eMMC太小，需要至少 ${MIN_TARGET_SIZE_MB}MB"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "警告: 将清空 ${TARGET_DEV}!"
|
||||
read -p "继续? (yes): " confirm
|
||||
[[ "$confirm" == "yes" ]] || exit 1
|
||||
|
||||
echo "写入镜像..."
|
||||
dd if="${IMAGE_FILE}" of=${TARGET_DEV} bs=4M status=progress
|
||||
sync
|
||||
|
||||
partprobe ${TARGET_DEV}
|
||||
sleep 3
|
||||
|
||||
# 扩展分区到最大
|
||||
MAX_P2_END=$((TARGET_SIZE / 512 - 34))
|
||||
parted -s ${TARGET_DEV} rm 2
|
||||
parted -s ${TARGET_DEV} unit s mkpart primary ext4 ${P2_START}s ${MAX_P2_END}s
|
||||
partprobe ${TARGET_DEV}
|
||||
sleep 2
|
||||
|
||||
e2fsck -f -y ${TARGET_DEV}p2
|
||||
resize2fs ${TARGET_DEV}p2
|
||||
|
||||
echo "✅ 恢复完成! 分区已扩展到最大空间"
|
||||
RESTORE_EOF
|
||||
|
||||
chmod +x "${RESTORE_SCRIPT}"
|
||||
|
||||
info_msg "========================================="
|
||||
info_msg "🎉 eMMC备份成功完成!"
|
||||
info_msg "🎉 智能eMMC备份成功完成!"
|
||||
info_msg "========================================="
|
||||
info_msg "📁 备份文件: ${OUTPUT_FILE}"
|
||||
info_msg "📏 实际大小: ${FINAL_SIZE}"
|
||||
info_msg "📐 逻辑大小: ${FINAL_SIZE_ACTUAL}"
|
||||
info_msg "💾 eMMC已恢复原状"
|
||||
info_msg "📏 备份大小: ${FINAL_SIZE}"
|
||||
info_msg "📄 信息文件: ${OUTPUT_FILE}.info"
|
||||
info_msg "🔧 恢复脚本: ${RESTORE_SCRIPT}"
|
||||
info_msg ""
|
||||
info_msg "🚀 部署到新设备:"
|
||||
info_msg " dd if=$(basename ${OUTPUT_FILE}) of=/dev/mmcblk0 bs=4M status=progress"
|
||||
info_msg "源eMMC: ${ORIGINAL_SIZE_GB}GB"
|
||||
info_msg "数据使用: ${TOTAL_USED}MB"
|
||||
info_msg "最小目标: ${MIN_TARGET_SIZE}MB (约$((MIN_TARGET_SIZE / 1024))GB)"
|
||||
info_msg ""
|
||||
info_msg "✅ 包含完整分区表和bootloader"
|
||||
info_msg "✅ 保持所有原始配置不变"
|
||||
info_msg "✅ 可在任意Rock5c上启动"
|
||||
info_msg "🚀 恢复方法:"
|
||||
info_msg " 1. 从SD卡启动目标设备"
|
||||
info_msg " 2. 运行: bash ${RESTORE_SCRIPT} ${OUTPUT_FILE}"
|
||||
info_msg ""
|
||||
info_msg "✅ 支持恢复到任意大小eMMC (≥${MIN_TARGET_SIZE}MB)"
|
||||
info_msg "✅ 自动扩展分区到最大可用空间"
|
||||
info_msg "✅ 保持双分区结构不变"
|
||||
info_msg "========================================="
|
||||
Loading…
x
Reference in New Issue
Block a user