Changing upower configuration to use percentages and poweroff the device when the critical battery level has been reached

live-build/ubuntu-touch/hooks/50-upower-poweroff-percentages.chroot

@@ -0,0 +1,10 @@
+#! /bin/sh
+
+set -e
+
+echo "Updating upower configuration..."
+
+sed -i 's/^UsePercentageForPolicy=.*/UsePercentageForPolicy=true/' /etc/UPower/UPower.conf
+sed -i 's/^CriticalPowerAction=.*/CriticalPowerAction=PowerOff/' /etc/UPower/UPower.conf
+
+