ui_print("Mounting system...");
run_program("/sbin/busybox", "mount", "/system");
ui_print("Changing build.prop...");
package_extract_file("system/change_build_prop.sh", "/tmp/change_build_prop.sh");
set_perm(0, 0, 0777, "/tmp/change_build_prop.sh");
run_program("/tmp/change_build_prop.sh");
delete("/tmp/change_build_prop.sh");
ui_print("Unmounting system...");
run_program("/sbin/busybox", "umount", "/system");
ui_print("Done");
