|  |  |  | @ -761,7 +761,76 @@ adb pull /sdcard/filename.mp4 | 
			
		
	
		
			
				
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					|  |  |  |  | ### 重新挂载 system 分区为可写 | 
			
		
	
		
			
				
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					|  |  |  |  | // TODO | 
			
		
	
		
			
				
					|  |  |  |  | **注:需要 root 权限。** | 
			
		
	
		
			
				
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					|  |  |  |  | /system 分区默认挂载为只读,但有些操作比如给 Android 系统添加命令、删除自带应用等需要对 /system 进行写操作,所以需要重新挂载它为可读写。 | 
			
		
	
		
			
				
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					|  |  |  |  | 步骤: | 
			
		
	
		
			
				
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					|  |  |  |  | 1. 进入 shell 并切换到 root 用户权限。 | 
			
		
	
		
			
				
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					|  |  |  |  |    命令: | 
			
		
	
		
			
				
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					|  |  |  |  |    ```sh | 
			
		
	
		
			
				
					|  |  |  |  |    adb shell | 
			
		
	
		
			
				
					|  |  |  |  |    su | 
			
		
	
		
			
				
					|  |  |  |  |    ``` | 
			
		
	
		
			
				
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					|  |  |  |  | 2. 查看当前分区挂载情况。 | 
			
		
	
		
			
				
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					|  |  |  |  |    命令: | 
			
		
	
		
			
				
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					|  |  |  |  |    ```sh | 
			
		
	
		
			
				
					|  |  |  |  |    mount | 
			
		
	
		
			
				
					|  |  |  |  |    ``` | 
			
		
	
		
			
				
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					|  |  |  |  |    输出示例: | 
			
		
	
		
			
				
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					|  |  |  |  |    ```sh | 
			
		
	
		
			
				
					|  |  |  |  |    rootfs / rootfs ro,relatime 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    proc /proc proc rw,relatime 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    sysfs /sys sysfs rw,seclabel,relatime 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    debugfs /sys/kernel/debug debugfs rw,relatime 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /var tmpfs rw,seclabel,relatime,mode=770,gid=1000 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /acct cgroup rw,relatime,cpuacct 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /sys/fs/cgroup/memory cgroup rw,relatime,memory 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /dev/memcg cgroup rw,relatime,memory 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /dev/cpuctl cgroup rw,relatime,cpu 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /sys/fs/cgroup/memory cgroup rw,relatime,memory 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    none /sys/fs/cgroup/freezer cgroup rw,relatime,freezer 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,relatime,noauto_da_alloc,data=ordered 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,relatime,data=ordered 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 rw,seclabel,nosuid,nodev,relatime,data=ordered 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/modem /firmware vfat ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/fuse /mnt/shell/emulated fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/fuse /mnt/shell/emulated/0 fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    ``` | 
			
		
	
		
			
				
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					|  |  |  |  |    找到其中我们关注的带 /system 的那一行: | 
			
		
	
		
			
				
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					|  |  |  |  |    ```sh | 
			
		
	
		
			
				
					|  |  |  |  |    /dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0 | 
			
		
	
		
			
				
					|  |  |  |  |    ``` | 
			
		
	
		
			
				
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					|  |  |  |  | 3. 重新挂载。 | 
			
		
	
		
			
				
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					|  |  |  |  |    命令: | 
			
		
	
		
			
				
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					|  |  |  |  |    ```sh | 
			
		
	
		
			
				
					|  |  |  |  |    mount -o remount,rw -t yaffs2 /dev/block/platform/msm_sdcc.1/by-name/system /system | 
			
		
	
		
			
				
					|  |  |  |  |    ``` | 
			
		
	
		
			
				
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					|  |  |  |  |    这里的 `/dev/block/platform/msm_sdcc.1/by-name/system` 就是我们从上一步的输出里得到的文件路径。 | 
			
		
	
		
			
				
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					|  |  |  |  | 如果输出没有提示错误的话,操作就成功了,可以对 /system 下的文件为所欲为了。 | 
			
		
	
		
			
				
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					|  |  |  |  | ## 其它常用 adb shell 命令 | 
			
		
	
		
			
				
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