大神帮我看一下安卓手机recovery模式里面的各个选项的意思，跪求了
推荐回答（5个）
中英对照编辑
主界面
reboot system now：重启手机（刷机完毕选择此项就能重新启动系统）
apply SDcard：update.zip：安装存储卡中的update.zip升级包（你可以把刷机包命名为update.zip然后用这个选项直接升级）
wipe data/factory reset：清除用户数据并恢复出厂设置（刷机前必须执行的选项）
wipe cache partition：清除系统缓存（刷机前执行）（系统出问题也可尝试此选项，一般能够解决）
install zip from SDcard：从SDcard上安装zip升级包（可以执行任意名称的zip升级包，不限制升级包名称）
backup and restore：备份和还原系统（作用和原理如同电脑上的Ghost一键备份和还原）
mounts and storage：挂载和存储选项（详细功能见下面的解释）
advanced：高级设置
备份还原
Backup：备份当前系统
Restore：还原上一个系统
Advanced Restore：高级还原选项（用户可以自选之前备份的系统，然后进行恢复）
挂载格式化
mount /system：挂载system文件夹（基本用不到）
mount /data：挂载data文件夹（基本用不到）
unmount /cache：取消cache文件夹挂载（基本用不到）
unmount /sdcard：取消内存卡挂载（基本用不到）
mount /sd-ext：挂载内存卡Ext分区（基本用不到）
format boot：格式化boot（刷机前最好执行一下）
format system：格式化system（刷机前最好执行一下）
format data：格式化data（刷机前最好执行一下）
format cache：格式化cache（刷机前最好执行一下）
format sdcard：格式化内储卡(执行此项你会后悔的)
format sd-ext：格式化内存卡Ext分区(执行此项你会后悔的)
mount USB storage：开启Recovery模式下的USB大容量存储功能（也就是说可以在Recovery下对内存卡进行读写操作）
其他功能
Reboot Recovery：重启Recovery（重启手机并再次进入Recovery）
Wipe Dalvik Cache：清空虚拟机缓存
我的手机是联想a690，和你的很像，不过我的自己刷过机，刷了中文版的recovery，比这省事多了。
apply update from ADB
选取升级包通过ADB
apply update from sdcard
选取升级包通过sd卡
apply update from cache
选取升级包通过缓存
wipe data/factory reset
清除数据恢复出厂设置
wipe cache partition
清除缓存分区
backup user data
备份用户数据
restore user data
恢复用户数据
system partition check
系统分区检测
纯手打 求采纳
apply update from ADB 通过ADB安装升级
applyupdate from sdcard 从SD卡安装升级
applyupdate from cache 从缓存安装更新
wipe data/factory reset 清除用户数据并恢复出厂设置
wipe cache partition 清除系统缓存
backup user data 备份用户数据
restore user data 恢复用户数据
check system partition 检查系统分区
第一个重启，第二个没用，第三个刷机，第四个恢复出厂，第五个清除缓存，下面都没用
123是刷机从手机，sd卡，缓存，4是恢复出厂，5是删缓存（没用）6是备份7还原8系统检查
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