chmod

So, I'm pretty new to linux which doesn't make me in all that great of a stance with android. I have rooted my phone and am attempting to remove amazon mp3. Now I've looked up quite a few linux commands and figured this should be really easy.

Opened up termina and:
Code:
$ su
# rm /system/app/com.amazon.mp3.apk
rm: remove '/system/app/com.amazon.mp3.apk'? y
rm: cannot remove '/system/app/com.amazon.mp3.apk': Read-only file
# chmod 777 /system/app/com.amazon.mp3.apk
Unable to chmod /system/app/com.amazon.mp3.apk: Read-only file system
# chmod 777 /system
Unable to chmod /system: Read-only file system

Can anyone help? :(
 
Woo :D it worked, +rep to both of you.

Code:
# mount -o remount,rw /system 
# rm /system/app/com.amazon.mp3.apk 
# mount -o remount,r /system

That did it perfectly just thought I would add the line that makes it read-only again so that no "accidents" happen. ^^

Oh, and I didn't have to reboot.
 
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