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    CM5如何备份(克隆到另一台CM5)

    Scheduled Pinned Locked Moved Pi CM5
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    • G
      george @ytfycy
      last edited by

      @ytfycy
      保存下面代码为sh脚本,然后放到U盘或者移动硬盘里边执行,执行前先增加一下权限。然后以root权限运行脚本。

      !# /bin/sh
      
      IMAGE_NAME="$(date "+%Y%m%d")-rootfs.img"
      IMAGE_SIZE=8192
      LOOP_NUMBER=$(losetup -f)
      
      echo "01:remove firstrun"
      rm /var/lib/misc/firstrun
      echo "02:Establishing a mount directory"
      mkdir ./mnt
      echo "03:dd image file"
      dd if=/dev/zero of=./$IMAGE_NAME bs=1M count=$IMAGE_SIZE
      echo "04:Mirror Partition"
      printf 'n\np\n1\n32768\n1081343\nn\np\n2\n1081344\n16777215\nw\n' | fdisk ./$IMAGE_NAME
      echo "05:format partition"
      partx -a -v ./$IMAGE_NAME
      mkfs.vfat $LOOP_NUMBER"p1"
      echo 'yes\n' | mkfs.ext4 $LOOP_NUMBER"p2"
      echo "06:copy boot files"
      mount $LOOP_NUMBER"p1" ./mnt
      cp /boot/firmware/* ./mnt/ -R
      umount ./mnt
      echo "07:backup rootfs"
      rm ./backup.fs
      dump -0u -f - /dev/mmcblk0p2 >> ./backup.fs
      echo "08:copy rootfs files"
      mount $LOOP_NUMBER"p2" ./mnt
      cd ./mnt
      restore -rf ../backup.fs
      umount ./mnt
      cd ../
      e2fsck -p -f $LOOP_NUMBER"p2"
      resize2fs -M $LOOP_NUMBER"p2"
      e2label $LOOP_NUMBER"p2" writable
      losetup -d $LOOP_NUMBER
      echo "09:backimg ok"
      fdisk -l ./$IMAGE_NAME
      
      Y G 2 Replies Last reply Reply Quote 0
      • Y
        ytfycy @george
        last edited by

        @george 是用空U盘吗?这个操作是从现有CM5上备份吗?那怎么操作去克隆到新CM5上

        G 1 Reply Last reply Reply Quote 0
        • G
          george @ytfycy
          last edited by

          @ytfycy
          是从现有的CM5备份,操作完以后会生成一个img文件,再用etcher升级到其它CM5机器即可。

          Y 1 Reply Last reply Reply Quote 0
          • Y
            ytfycy @george
            last edited by

            @george 到别的CM5升级怎么操作能给说一下吗

            G 1 Reply Last reply Reply Quote 0
            • G
              george @ytfycy
              last edited by

              @ytfycy
              按照如下文档操作,机器先进入UMS模式,然后用etcher烧录脚本生成的镜像即可完成升级。
              https://wiki.cool-pi.com/en/home/cm5_quick_start

              Y 1 Reply Last reply Reply Quote 0
              • Y
                ytfycy @george
                last edited by

                @george 但是我在操作第一步备份时,就是执行脚本报找不到命令。我就是做了一个sh脚本放在优盘里,用chmod给脚本加了权限sudo执行的

                G 1 Reply Last reply Reply Quote 0
                • G
                  george @ytfycy
                  last edited by

                  @ytfycy
                  缺少什么包就安装一下。

                  T 2 Replies Last reply Reply Quote 0
                  • T
                    Twsuts 0 @george
                    last edited by

                    @george 为什么我拷贝出来的系统跟我系统的实际大小不符合,安装到新板子上也启动不了

                    1 Reply Last reply Reply Quote 0
                    • T
                      Twsuts 0 @george
                      last edited by

                      @george 好像还有一个backup.fs跟文件系统,我如何烧写进板子呢?

                      1 Reply Last reply Reply Quote 0
                      • G
                        george @george
                        last edited by

                        @george
                        dump-emmc.sh

                        1 Reply Last reply Reply Quote 0
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