title: Failed to install MyFirstApp.apk on device 'emulator-5554': Read-only file system
body: <p>i am following the HelloWorld tutorial from developer.android.com in Eclipse Kepler Service Release 2 &amp; 0S X 10.9.4, but when I try to run the application I get the next error:</p>
  
  <pre><code>[2014-08-15 14:05:33 - MyFirstApp] Uploading MyFirstApp.apk onto device 'emulator-5554'
  [2014-08-15 14:05:34 - MyFirstApp] Failed to install MyFirstApp.apk on device 'emulator-5554': Read-only file system
  [2014-08-15 14:05:34 - MyFirstApp] com.android.ddmlib.SyncException: Read-only file system
  [2014-08-15 14:05:34 - MyFirstApp] Launch canceled!
  </code></pre>
  
  <p>I guess I have to unmount the /system, but I don't know where is located exactly:</p>
  
  <p>That's the result trying to unmount:</p>
  
  <pre><code>mount: /system: unknown special file or file system.
  </code></pre>
  
  <p>same for System:</p>
  
  <pre><code>mount: /System: unknown special file or file system.
  </code></pre>
  
  <p>and no result trying to find it using</p>
  
  <pre><code>mount | grep system
  </code></pre>