adb push 失败提示 ‘Read-only file system’

Posted 2023-04-16

参考技术A

$ adb push ./xxx /xxx/
failed to copy \'./xxx\' to \'/xxx/xxx\': Read-only file system

解决方法：

$ adb root
restarting adbd as root
$ adb remount
remount succeeded
$ adb push ./libbacktrace.so /system/lib/
2783 KB/s (58588 bytes in 0.020s)

已经按照上面的步骤做了，还是提示 ‘Read-only file system’怎么办

$ adb shell

/dev/block/by-name/android_system /system ext4 ro,seclabel,relati me,data=ordered 0 0
可以看到/system还是只读属性‘ro’，接下来我们把它remount成rw

/dev/block/by-name/android_system /system ext4 rw,seclabel,relati me,data=ordered 0 0

tips：
先 adb root 再adb remount 否则会出现下面的情况

$ adb remount
remount of system failed: Permission denied
remount failed

可能需要adb reboot 注意看命令行中的提示

adb push报错‘read-only file system‘

使用bat脚本，执行对android设备文件的覆盖

@echo off
adb root
adb push hosts /etc/
pause

adb已经获取到root权限，当尝试替换/etc/hosts文件，在执行adb push命令时，报错:read-only file system。

adb: error: failed to copy 'hosts' to '/etc/hosts': remote Read-only file system

这个问题是因为android的系统分区默认挂载为只读。解决方法就是重新挂载系统分区。

adb root
adb shell mount -o remount /system
adb push hosts /etc/