I'm trying to edit the hosts file on an android emulator with API 30 - Android R. I have completed remount successfully but it says
Remount succeeded. Reboot device for changes to be effective
I am stuck on this step because no matter what way I reboot the emulator, it goes to
Device offline
and shows just a black screen. It gets restored only if I do a factory reset, but again the emulator file system becomes read-only and I cannot edit the hosts file.
The solutions I tried are as follows:
First step is common. In adb command prompt:
cd [...\Android\android-sdk\emulator directory]
emulator -avd [EMULATORNAME] -writable-system
Then in system command prompt,
cd [...\Android\android-sdk\platform-tools directory]
Method 1:
adb root
adb remount
Here remount succeeds but I need to reboot the device. All these ways of rebooting result in Device Offline state and black screen:
adb reboot- Manually restarting emulator by long pressing power button
- In adb command prompt, pressing Ctrl + C to stop the emulator and starting again with:
emulator -avd [EMULATORNAME] -writable-system
If I ignore the reboot and try to edit the hosts file pushing a new like this:
adb push hosts /system/etc
Then I get
Error, cannot write to a read-only file system.
Method 2:
adb shell
su
mount -o remount,rw /sys
This gives no error or success message. Then if I try any write operation such as:
adb push hosts /system/etc
or
cat hosts
10.1.3.5 bla.blabla.com >> hosts
Then it still says
Error, cannot write to a read-only file system.
I have already tried these links and solutions with no success:
How to edit /etc/hosts file in Android Studio emulator running in nougat?
I can't edit android emulator's host file
android emulator sdk 10 api 29 won't start after remount and reboot
Please help. Thanks in advance!