Push my apk to /system/app

Question

How can I push my application package to Android emulator \"/system/app\" folder?

I\'ve already tried to use:
\"adb push myApk.apk /system/app\"
and it giv

Answer 1

I have come across this situation multiple times while copying apk files to /system partition and could finally resolve it using the following steps:

• Check the Free space in /system partition using df from adb shell. Most probably the Free space would be less than size of apk file.

  Filesystem               Size     Used     Free   Blksize
  /dev                         1.3G    80.0K     1.3G      4.0K
  /sys/fs/cgroup               1.3G    12.0K     1.3G      4.0K
  /mnt/secure                  1.3G     0.0K     1.3G      4.0K
  /mnt/asec                    1.3G     0.0K     1.3G      4.0K
  /mnt/obb                     1.3G     0.0K     1.3G      4.0K
  /system                      3.5G     3.5G    10.0M      4.0K
  /efs                        15.7M     2.8M    12.9M      4.0K
  /cache                     192.8M   736.0K   192.1M      4.0K
  /data                       25.5G    12.7G    12.8G      4.0K
  /persdata/absolute           4.9M   120.0K     4.8M      4.0K
  /sbfs                       10.8M     8.0K    10.7M      4.0K
  /mnt/shell/knox-emulated    25.5G    12.7G    12.8G      4.0K
  /mnt/shell/privatemode      25.4G    12.7G    12.7G      4.0K
  /mnt/shell/emulated         25.4G    12.7G    12.7G      4.0K
  /preload                     5.8M     3.3M     2.5M      4.0K
  

• Use du /system to get sizes of each folder & file in /system partition. Arrange the output in descending order of size(s) to get (something similar):

  4091840 /system/
  1199416 /system/app
  964064  /system/priv-app
  558616  /system/lib64
  373320  /system/lib
  206624  /system/vendor
  170952  /system/app/WebViewGoogle
  148824  /system/app/WebViewGoogle/lib
  125488  /system/voice
  125480  /system/voice/embedded
  122880  /system/app/Chrome
  106520  /system/framework
  102224  /system/priv-app/Velvet
  96552   /system/app/SBrowser_3.0.38
  93936   /system/vendor/lib64
  93792   /system/vendor/lib64/egl
  92552   /system/tts
  92512   /system/tts/lang_SMT
  ...
  

• Delete unnecessary files from /system/voice/embedded, /system/tts/lang_SMT (for language/locale support) and/or other folders to free enough space in /system partition to accommodate the new apk file. Deleting files in partitions other than /system may not help in this scenario. (N.B.: This step may require ROOT privileges and remounting /system partition in read-write mode using mount -o rw,remount /system)