[Unit] Description=Droid mount for /system Before=local-fs.target systemd-modules-load.service [Mount] What=/dev/block/mmcblk0p42 Where=/system Type=ext4 Options=ro,barrier=1 # Options had SELinux context option: # Default is 90 which makes mount period too long in case of # errors so drop it down a notch. TimeoutSec=10 [Install] WantedBy=local-fs.target # From ./out/target/product/surnia/root/fstab.qcom : # /dev/block/mmcblk0p42 /system ext4 ro,barrier=1 wait