I have rooted Samsung Galaxy S4 (Int) using CynongenMod OS. I am trying to install and run an executable file which needs its configuration file to be copied to the /system directory.

Now, after copying my files from PC to the /sdcard folder, i am unable to copy the .conf file to /system/etc and I can't also copy .exe file to /system/bin.

I know that I have to mount the /system directory. I restarted my phone and boot into Recovery Mode and then mounted /system directory, but it did not work.

I also tried mounting it manually from the adb shell using the following command:

mount -o remount wr /system/

still it is not mounting and I can't perform the copy. It shows me in the terminal the following message:

mount: Permission denied 

so please help me mounting the /system directory

  • 1
    the command is mount -o remount,rw /system
    – user23414
    Commented Jan 28, 2014 at 14:23
  • @AlexP.: It worked. Would you please put your comment as an answer, thank you
    – McLan
    Commented Jan 28, 2014 at 14:41
  • Thank you @ChrisStratton for the note, and sorry for putting off-topic question .. what do you suggest I do , should I delete the question ?
    – McLan
    Commented Jan 28, 2014 at 16:09
  • You don't need to do anything - you have your answer and the question may or may not be closed by the community. Commented Jan 28, 2014 at 16:11

1 Answer 1


The command is mount -o remount,rw /system

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