advancedsettings.xml not being picked up

[rlyacht]

I'm running OpenELEC 8.0.4 on a raspberry pi 3 and I want to change the cache settings in advancedsettings.xml.

I see there is already an advancedsettings.xml in /usr/share/kodi/system

In order to change the settings, i copied it to ~/.kodi/userdata/ and then added the cache tag and its sections:

Code:

<cache>
<buffermode>1</buffermode>
<memorysize>0</memorysize>
<readfactor>20</readfactor>
</cache>

However when I reboot and look at /usr/share/kodi/system/advancedsettings.xml, it doesn't have the cache section :-(

What am I doing wrong?