Issue
I am running Android emulator (emulator version 30.5.5.0) and the avd: Pixel_3a_API_30_x86
from AndroidStudio.
Using adb.exe
(Android Debug Bridge) I try to copy a file from the Windows host to the emulated Android /system/...
folder, but I haven't been able to after trying different things like this tutorial:
- I run the android emulator from the command line to specify the parameter
-writable-system
:
cd C:\Users\%username%\AppData\Local\Android\Sdk\emulator
emulator -avd Pixel_3a_API_30_x86 -writable-system
Then from another command-line window while the emulator is running:
cd C:\Users\%username%\AppData\Local\Android\Sdk\platform-tools
adb root
adb shell "mount -o rw,remount /"
'/dev/block/dm-0' is read-only
adb push MyFile.txt /system/etc/security/cacerts
Then I get the error: ERROR:
MyFile.txt: 1 file pushed, 0 skipped. 0.1 MB/s (950 bytes in 0.011s)
adb: error: failed to copy 'MyFile.txt' to '/system/etc/security/cacerts/MyFile.txt': remote couldn't create file: Read-only file system
How can I copy the file from Windows to Android /system
?
Solution
The tutorial in the link was missing some commands and the web page was not updated with the latest version from GitHub.
Here is the final sequence (for API LEVEL > 28):
adb root
adb shell avbctl disable-verification
adb reboot
adb root
adb remount
adb push MyFile.txt /system/etc/security/cacerts
Answered By - Lazaro
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