Can't save build.prop on KitKat

Rocket Hazmat shared this problem 4 years ago

I'm running CyanogenMod 11 on my Nexus 7 (2012). I tried to edit the build.prop to lower the DPI. After rebooting, the changes were not saved.

I tried to edit the file manually and got an error. "Cannot save build.prop".

I had to run "adb shell" and then "mount -o remount,rw /system" and then it was and to save.

Why didn't it remount system for me?