mount -o remount -rw -t ext4 /dev/block/platform/omap/omap_hsmmc.0/by-name/system /system/
The path may be different from device to device
Or, simply type after rooting
adb remount
mount -o remount -rw -t ext4 /dev/block/platform/omap/omap_hsmmc.0/by-name/system /system/
The path may be different from device to device
Or, simply type after rooting
adb remount