How to handle this SD card Android emulator error? - android

I wanted to add a file to the sd card of the android emulator but i receive this error:
Failed to push selection: Read-only file system
What shall I do? I am an Android beginner and still learning how to use the terminal and all that stuff. So please, can someone give me a step-by-step tutorial and not just another link?

This is a tutorial regarding creation of SD Card. While creating the current SD card, you may not have given it write permission. Follow the steps in that tutorial and you will be able to upload image to SD card.
EDIT
Step1: ...tools>android create avd -n myemulator -t 8
Step2: ...tools>mksdcard -l e 512M mysdcard.img
Step3: ...tools>emulator -avd myemulator -sdcard mysdcard

Related

Android: How to create an AVD with an external sd card?

I'd like to create an Android Virtual Device against which I can test recent issues with writing to external SD cards. I would expect the external sd card to be found at location like "/storage/extSdCard/DCIM/" on the AVD's file system. Any suggestions on how I can accomplish this?
To add removable storage to your AVD use:
~/Android/android-sdk/tools/mksdcard [memory size] [output file]
to create SD card image.
Then pass it in Advanced AVD Settings dialog: SD card -> External file
DONE :)
You can learn more about the mksdcard tool here:
https://developer.android.com/studio/command-line/mksdcard
You can open Android Device Monitor which is the Android symbol next to the SDK Manager. Once opened you can see the files using the file explorer and here you can create the required folders/path for using the external SD card.
There is a chance that when you try and create a folder it will say it is read only, if this happens open up command prompt and using adb shell input these commands:
mount -o rw,remount rootfs /
chmod 777 /mnt/sdcard
exit
These commands are from this link
On macOS Mojave 1.14.3 with Android Studio 3.3.1 I found the path to be slightly different.
Create a 128 Gb sdcard:
~/Library/Android/sdk/tools/mksdcard 128G sdcard.ini

Create SD Card for Emulator built from Android source code

I have built the Android source for the emulator. I need to add sdcard to this emualtor.
Following are the commands, I use after the first full build:
source build/envsetup.sh
lunch 1
mmm packages/apps/MyApp/
adb sync
adb remount
However, I am unable to see the emulator in /mnt/sdcard path
What are the steps or commands, I need to use, in order to create an sdcard, when I use the emulator(with the commands above) built from Android source code.
I have been stuck with this issue for sometime. Any help is much appreciated.
after executing
$ make -j4
execute
$ mksdcard -l mySdCard 1024M mySdCardFile.img
and then
$ emulator -sdcard mySdCardFile.img
You have to go to the Android Virtual Device Manager, create your own or use an existing one and click the "Edit" button.
Then add some MB to your virtual SD Card.
Once started you can go to DDMS tab, then File Transfer tab and SDCard folder ;)

Eclipse console shows:'Failed to push selection: Read-only file system'when i try to push a file

I am trying to push a file to the SD Card but its showing error in console 'failed to push selection: Read-only file system'.I am using DDMS perspective in Eclipse.I generated sdcard using mksdcard command.
Just go to
C:\Documents and Settings\<adminstrator>\.android\avd
take 'properties' of your avd folder (there is a folder for each of the avd's)
uncheck 'Read only' -> OK
This was the only thing that worked for me.
P.S: Some of these folders might be hidden.
On the Terminal or Command-Prompt, write these( for me its command prompt ):
adb shell(Opens the device shell. you'll see a #)
su(get the root permission, if necessary)
mount -o rw,remount rootfs /(remount the root file system.)
chmod 777 /mnt/sdcard (change the permission of the sdcard to rwe.)
exit
If it doesn't work, try to push the file from the same shell using adb push .
Hope this help.
You need to give SDCard support to your AVD and mount the SDCard.
First go to 'AVD Manager and select your AVD then Click on Edit and in the Hardware add SDCard Support'.
Please check this link for complete detailed step to achieve SDCard support and mounting.
You can also give a try to this command in CMD, this will remount your SDCard.
c:\android-sdk\platform-tools\>adb remount
I was also facing same issue :
Failed to push selection: Read-only file system
In computers with higher configuration(beyond Windows XP)
settings like ---> C:\Documents and Settings\.android\avd
doesn't exist so instead
go to this path --> C:\Users\.android and right click on this folder and uncheck the box having name as read only.
Hope this helps those with newer windows on their pc :) , if this solution helps you than please vote for it.
In my case i have mistake with the slash.
while specifying "Additional Emulator Command Line Options" in eclipse
Actually it should be -sdcard C:/Kamal/sdcard/emulator_sdcard
and i was putting -sdcard C:\Kamal\sdcard\emulator_sdcard
Then after restarting the Eclipse & Emulator it works.
If the data in the sd card is not updated in the emulator or in the app which you are developing then,
Select,
Dev Tools->Media Scanner
The data which has been already pushed into the sd card by variant means will get loaded soon.!
if some one have same problem in new build of studio . 0.8.9 and above see my solution here and it will work like a charm : (afra mehrparvar solution in the bottom of the page )
Android Emulator sdcard push error: Read-only file system

Android emulator SD card problem

i m inserting one video in sdcard to show the video in emulator..
but showing error:
[2010-11-24 19:21:22] Failed to push sample.mov on emulator-5554: Read-only file system
pls help me how can i do that?
It probably has to do with the way you are creating your sdcard (check if you have the right permissions by doing adb shell, then ls -l on sdcard from terminal).
Also check this thread

android: adding audio files to android emulator [update] permission denied

For debugging purposes, I wanted to have a couple of mp3 files located somewhere "in" my android emulator. Is there anyway to directly push files from my OS file system to the storage system of android?
If so, which directory does android keep audio files?
if not, how can I access an SD card via emulator?
[update2]: The problem in update1 solved. Should use adb push.
[update1]: I followed kgiannakakis's advice to create an sdcard for my avd. However, I got Permission denied error when I try to create new directory inside it.
$ cd sdcard
$ ls
LOST.DIR
$mkdir musics
mkdir failed for musics, Permission denied
$ su mkdir musics
su: uid 10016 not allowed to su
You can find directions for emulating an SD card here.
I believe that the easiest way to copy files to the SD card is to use the adb utility.
See here for a more advanced solution.
Regarding instructions at http://android-er.blogspot.com/2009/10/create-sd-card-in-android-emulator-and.html on creating the 'pictures' folder, you can run the same commands from the adb shell, instead of running them from inside the emulator.
So get a command line at e.g. C:\Program Files (x86)\Android\android-sdk-windows\platform-tools (on 64bit windows), and run adb shell.
Then you can run the same commands:
#cd sdcard
#mkdir pictures
and create the directory successfully with no permission denied error.
Following same instructions, in DDMS I had to browse to \mnt\sdcard to find the SD card volume.

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