安卓手机手动【备份+还原】分区

小爱

三种备份还原方法
cat
dd
fastboot

针对不同的机型查看分区信息
cat /proc/mtd
cat /proc/emmc
cat /proc/partitions
ls -l /dev/block/platform/*/by-name/

备份

• 制作备份脚本
  if [ ! $1 ];then
  ls -l /dev/block/platform/msm_sdcc.1/by-name/  | awk '{print "cat "$8">/sdcard/"$6".img"}'>/sdcard/bak_cat
  ls -l /dev/block/platform/msm_sdcc.1/by-name/  | awk '{print "dd if="$8 " of=/sdcard/"$6".img bs=512" }'>/sdcard/bak_dd
  else
  if [ $1 = "f" ];then
  echo "fastboot oem unlock">/sdcard/restore_fastboot
  ls -l /dev/block/platform/msm_sdcc.1/by-name/  | awk '{print "fastboot erase " $6}'>> /sdcard/restore_fastboot
  echo " ############">>/sdcard/restore_fastboot
  ls -l /dev/block/platform/msm_sdcc.1/by-name/  | awk '{print "fastboot flash " $6 " " $6 ".img" }'>>/sdcard/restore_fastboot
  else
  ls -l /dev/block/platform/msm_sdcc.1/by-name/  | awk '{print "dd if=/sdcard/"$6".img" " of="$8}'>/sdcard/restore_dd
  fi
  ################################################
  /system/bin/fenqu在sd卡上生成备份文件
  /bak_cat
  /bak_dd
  分别使用dd和cat备份
  ################################################
  /system/bin/fenqu f
  fastboot还原       /sdcard/restore_fastboot
  ################################################
  /system/bin/fenqu x
  dd还原               /sdcard/restore_dd
  ################################################
  随意打开一个，删掉cache.img所在的行
  如果system和data不想要了，也可以删掉
  
  
• 2
  ‍cat /dev/block/mmcblk0p7>/sdcard/aboot.img
  cat /dev/block/mmcblk0p8>/sdcard/boot.img
  cat /dev/block/mmcblk0p9>/sdcard/boot1.img
  cat /dev/block/mmcblk0p19>/sdcard/cache.img
  cat /dev/block/mmcblk0p11>/sdcard/misc.img
  cat /dev/block/mmcblk0p1>/sdcard/modem.img
  cat /dev/block/mmcblk0p12>/sdcard/modem_st1.img
  cat /dev/block/mmcblk0p13>/sdcard/modem_st2.img
  cat /dev/block/mmcblk0p18>/sdcard/persist.img
  cat /dev/block/mmcblk0p17>/sdcard/recovery.img
  cat /dev/block/mmcblk0p5>/sdcard/rpm.img
  cat /dev/block/mmcblk0p2>/sdcard/sbl1.img
  cat /dev/block/mmcblk0p3>/sdcard/sbl2.img
  cat /dev/block/mmcblk0p6>/sdcard/sbl3.img
  cat /dev/block/mmcblk0p15>/sdcard/system.img
  cat /dev/block/mmcblk0p16>/sdcard/system1.img
  cat /dev/block/mmcblk0p10>/sdcard/tz.img
  cat /dev/block/mmcblk0p20>/sdcard/userdata.img
  
  
• 3
  dd if=/dev/block/mmcblk0p7 of=/sdcard/aboot.img bs=512
  dd if=/dev/block/mmcblk0p8 of=/sdcard/boot.img bs=512
  dd if=/dev/block/mmcblk0p9 of=/sdcard/boot1.img bs=512
  dd if=/dev/block/mmcblk0p19 of=/sdcard/cache.img bs=512
  dd if=/dev/block/mmcblk0p11 of=/sdcard/misc.img bs=512
  dd if=/dev/block/mmcblk0p1 of=/sdcard/modem.img bs=512
  dd if=/dev/block/mmcblk0p12 of=/sdcard/modem_st1.img bs=512
  dd if=/dev/block/mmcblk0p13 of=/sdcard/modem_st2.img bs=512
  dd if=/dev/block/mmcblk0p18 of=/sdcard/persist.img bs=512
  dd if=/dev/block/mmcblk0p17 of=/sdcard/recovery.img bs=512
  dd if=/dev/block/mmcblk0p5 of=/sdcard/rpm.img bs=512
  dd if=/dev/block/mmcblk0p2 of=/sdcard/sbl1.img bs=512
  dd if=/dev/block/mmcblk0p3 of=/sdcard/sbl2.img bs=512
  dd if=/dev/block/mmcblk0p6 of=/sdcard/sbl3.img bs=512
  dd if=/dev/block/mmcblk0p15 of=/sdcard/system.img bs=512
  dd if=/dev/block/mmcblk0p16 of=/sdcard/system1.img bs=512
  dd if=/dev/block/mmcblk0p10 of=/sdcard/tz.img bs=512
  dd if=/dev/block/mmcblk0p20 of=/sdcard/userdata.img bs=512
  
  
  
  
  END
  

还原

• dd if=/sdcard/aboot.img of=/dev/block/mmcblk0p7
  dd if=/sdcard/boot.img of=/dev/block/mmcblk0p8
  dd if=/sdcard/boot1.img of=/dev/block/mmcblk0p9
  dd if=/sdcard/cache.img of=/dev/block/mmcblk0p19
  dd if=/sdcard/misc.img of=/dev/block/mmcblk0p11
  dd if=/sdcard/modem.img of=/dev/block/mmcblk0p1
  dd if=/sdcard/modem_st1.img of=/dev/block/mmcblk0p12
  dd if=/sdcard/modem_st2.img of=/dev/block/mmcblk0p13
  dd if=/sdcard/persist.img of=/dev/block/mmcblk0p18
  dd if=/sdcard/recovery.img of=/dev/block/mmcblk0p17
  dd if=/sdcard/rpm.img of=/dev/block/mmcblk0p5
  dd if=/sdcard/sbl1.img of=/dev/block/mmcblk0p2
  dd if=/sdcard/sbl2.img of=/dev/block/mmcblk0p3
  dd if=/sdcard/sbl3.img of=/dev/block/mmcblk0p6
  dd if=/sdcard/system.img of=/dev/block/mmcblk0p15
  dd if=/sdcard/system1.img of=/dev/block/mmcblk0p16
  dd if=/sdcard/tz.img of=/dev/block/mmcblk0p10
  dd if=/sdcard/userdata.img of=/dev/block/mmcblk0p20
  
  
• 如果哪个分区刷不进 ，可用fastboot先将它清空
  手机用数据线连接电脑
  adb reboot-bootloader
  fastboot oem unlock
  fastboot erase aboot
  fastboot erase boot
  fastboot erase boot1
  fastboot erase cache
  fastboot erase misc
  fastboot erase modem
  fastboot erase modem_st1
  fastboot erase modem_st2
  fastboot erase persist
  fastboot erase recovery
  fastboot erase rpm
  fastboot erase sbl1
  fastboot erase sbl2
  fastboot erase sbl3
  fastboot erase system
  fastboot erase system1
  fastboot erase tz
  fastboot erase userdata
  
  
• 手机用数据线连接电脑
  adb reboot-bootloader
  ‍fastboot flash aboot aboot.img
  fastboot flash boot boot.img
  fastboot flash boot1 boot1.img
  fastboot flash cache cache.img
  fastboot flash misc misc.img
  fastboot flash modem modem.img
  fastboot flash modem_st1 modem_st1.img
  fastboot flash modem_st2 modem_st2.img
  fastboot flash persist persist.img
  fastboot flash recovery recovery.img
  fastboot flash rpm rpm.img
  fastboot flash sbl1 sbl1.img
  fastboot flash sbl2 sbl2.img
  fastboot flash sbl3 sbl3.img
  fastboot flash system system.img
  fastboot flash system1 system1.img
  fastboot flash tz tz.img
  fastboot flash userdata userdata.img
• 4
  一般刷机是刷recovery+system分区，/data /cache是随意格式化的。
  小米system2是双系统用的，所以可删掉。将两个系统的大小合并到1个，sytem2分1个1兆的小分区意思一下就行了。
  其他的不知道做什么别乱删了
  要注意刷机包的大小要小于要刷的分区的大小，否则刷不进。
  需要重新分区或者换缩小包