I want to kill some apps, like calculator, that I have replaced and don't want. Here are the commands (in both Terminal and ADB): $ su # rm /system/app/Calculator.apk rm: remove '/system/app/Calculator.apk'?y rm: can't remove '/system/app/Calculator.apk': Read-only file system # Notice the "su" command. It shouldn't be read-only. I really want to unclutter my app drawer. The build is CyanogenMod-6-07252010-NIGHTLY-Inc.