[Q] running su got result 1(Operation not permitted) topic

Hi,
I've embeded su executable into a msm8974/android 4.4.4 device, but runing su under console I always got result 1.
tried SuperSU 1.93, Super SU 2.46 arm7.

here's the update-script file for your reference

Code:

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(!less_than_int(1426845577, getprop("ro.build.date.utc"))) || abort("Can't install this package (Fri Mar 20 17:59:37 CST 2015) over newer build (" + getprop("ro.build.date") + ").");
getprop("ro.product.device") == "msm8974" || abort("This package is for \"msm8974\" devices; this is a \"" + getprop("ro.product.device") + "\".");
show_progress(0.500000, 0);
format("ext4", "EMMC", "/dev/block/platform/msm_sdcc.1/by-name/system", "0", "/system");
mount("ext4", "EMMC", "/dev/block/platform/msm_sdcc.1/by-name/system", "/system");
package_extract_dir("recovery", "/system");
package_extract_dir("system", "/system");
symlink("/data/misc/audio/mbhc.bin", "/system/etc/firmware/wcd9320/wcd9320_mbhc.bin");
symlink("/data/misc/audio/wcd9320_anc.bin", "/system/etc/firmware/wcd9320/wcd9320_anc.bin");
symlink("/data/misc/audio/wcd9320_mad_audio.bin", "/system/etc/firmware/wcd9320/wcd9320_mad_audio.bin");
symlink("/data/misc/wifi/WCNSS_qcom_cfg.ini", "/system/etc/firmware/wlan/prima/WCNSS_qcom_cfg.ini");
symlink("/persist/WCNSS_qcom_wlan_nv.bin", "/system/etc/firmware/wlan/prima/WCNSS_qcom_wlan_nv.bin");
symlink("/system/etc/firmware/ath6k/AR6004/hw1.3/bdata.bin_usb", "/system/etc/firmware/ath6k/AR6004/hw1.3/bdata.bin");
symlink("/system/etc/firmware/ath6k/AR6004/hw1.3/fw.ram.bin_usb", "/system/etc/firmware/ath6k/AR6004/hw1.3/fw.ram.bin");
symlink("/system/etc/firmware/ath6k/AR6004/hw3.0/bdata.bin_usb", "/system/etc/firmware/ath6k/AR6004/hw3.0/bdata.bin");
symlink("/system/lib/modules/pronto/pronto_wlan.ko", "/system/lib/modules/wlan.ko");
symlink("Roboto-Bold.ttf", "/system/fonts/DroidSans-Bold.ttf");
symlink("Roboto-Regular.ttf", "/system/fonts/DroidSans.ttf");
symlink("libGLESv2.so", "/system/lib/libGLESv3.so");
symlink("mksh", "/system/bin/sh");
symlink("toolbox", "/system/bin/cat", "/system/bin/chcon",
        "/system/bin/chmod", "/system/bin/chown", "/system/bin/clear",
        "/system/bin/cmp", "/system/bin/cp", "/system/bin/date",
        "/system/bin/dd", "/system/bin/df", "/system/bin/dmesg",
        "/system/bin/du", "/system/bin/getenforce", "/system/bin/getevent",
        "/system/bin/getprop", "/system/bin/getsebool", "/system/bin/grep",
        "/system/bin/hd", "/system/bin/id", "/system/bin/ifconfig",
        "/system/bin/iftop", "/system/bin/insmod", "/system/bin/ioctl",
        "/system/bin/ionice", "/system/bin/kill", "/system/bin/ln",
        "/system/bin/load_policy", "/system/bin/log", "/system/bin/ls",
        "/system/bin/lsmod", "/system/bin/lsof", "/system/bin/md5",
        "/system/bin/mkdir", "/system/bin/mkswap", "/system/bin/mount",
        "/system/bin/mv", "/system/bin/nandread", "/system/bin/netstat",
        "/system/bin/newfs_msdos", "/system/bin/notify", "/system/bin/printenv",
        "/system/bin/ps", "/system/bin/r", "/system/bin/readlink",
        "/system/bin/renice", "/system/bin/restorecon", "/system/bin/rm",
        "/system/bin/rmdir", "/system/bin/rmmod", "/system/bin/route",
        "/system/bin/runcon", "/system/bin/schedtop", "/system/bin/sendevent",
        "/system/bin/setconsole", "/system/bin/setenforce",
        "/system/bin/setprop", "/system/bin/setsebool", "/system/bin/sleep",
        "/system/bin/smd", "/system/bin/start", "/system/bin/stop",
        "/system/bin/swapoff", "/system/bin/swapon", "/system/bin/sync",
        "/system/bin/top", "/system/bin/touch", "/system/bin/umount",
        "/system/bin/uptime", "/system/bin/vmstat", "/system/bin/watchprops",
        "/system/bin/wipe");
set_metadata_recursive("/system", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata_recursive("/system/bin", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/bin/app_process", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:zygote_exec:s0");
set_metadata("/system/bin/clatd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:clatd_exec:s0");
set_metadata("/system/bin/debuggerd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:debuggerd_exec:s0");
set_metadata("/system/bin/dhcpcd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:dhcp_exec:s0");
set_metadata("/system/bin/dnsmasq", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:dnsmasq_exec:s0");
set_metadata("/system/bin/drmserver", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:drmserver_exec:s0");
set_metadata("/system/bin/hostapd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:hostapd_exec:s0");
set_metadata("/system/bin/installd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:installd_exec:s0");
set_metadata("/system/bin/keystore", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:keystore_exec:s0");
set_metadata("/system/bin/mediaserver", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:mediaserver_exec:s0");
set_metadata("/system/bin/mksh", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:shell_exec:s0");
set_metadata("/system/bin/mtpd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:mtp_exec:s0");
set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/bin/netd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:netd_exec:s0");
set_metadata("/system/bin/ping", "uid", 0, "gid", 0, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:ping_exec:s0");
set_metadata("/system/bin/pppd", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:ppp_exec:s0");
set_metadata("/system/bin/racoon", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:racoon_exec:s0");
set_metadata("/system/bin/rild", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:rild_exec:s0");
set_metadata("/system/bin/run-as", "uid", 0, "gid", 2000, "mode", 0750, "capabilities", 0xc0, "selabel", "u:object_r:runas_exec:s0");
set_metadata("/system/bin/sdcard", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:sdcardd_exec:s0");
set_metadata("/system/bin/servicemanager", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:servicemanager_exec:s0");
set_metadata("/system/bin/surfaceflinger", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:surfaceflinger_exec:s0");
set_metadata("/system/bin/vold", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:vold_exec:s0");
set_metadata("/system/bin/wpa_supplicant", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:wpa_exec:s0");
set_metadata_recursive("/system/etc/dhcpcd", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:dhcp_system_file:s0");
set_metadata("/system/etc/dhcpcd/dhcpcd-run-hooks", "uid", 1014, "gid", 2000, "mode", 0550, "capabilities", 0x0, "selabel", "u:object_r:dhcp_system_file:s0");
set_metadata("/system/etc/install-recovery.sh", "uid", 0, "gid", 0, "mode", 0544, "capabilities", 0x0);
set_metadata_recursive("/system/etc/ppp", "uid", 0, "gid", 0, "dmode", 0755, "fmode", 0555, "capabilities", 0x0, "selabel", "u:object_r:ppp_system_file:s0");
set_metadata("/system/recovery-from-boot.p", "uid", 0, "gid", 0, "mode", 0644, "capabilities", 0x0);
set_metadata("/system/vendor", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata_recursive("/system/vendor/etc", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/etc/audio_effects.conf", "uid", 0, "gid", 0, "mode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata_recursive("/system/vendor/lib/drm", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/drm/libdrmprplugin.so", "uid", 0, "gid", 0, "mode", 0644, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/egl", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/hw", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/rfsa", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/rfsa/adsp", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata("/system/vendor/lib/soundfx", "uid", 0, "gid", 2000, "mode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_metadata_recursive("/system/xbin", "uid", 0, "gid", 2000, "dmode", 0755, "fmode", 0755, "capabilities", 0x0, "selabel", "u:object_r:system_file:s0");
set_perm(0, 0, 06755, "/system/xbin/su");
symlink("/system/xbin/su", "/system/bin/su");
show_progress(0.200000, 0);
show_progress(0.200000, 10);
package_extract_file("boot.img", "/dev/block/platform/msm_sdcc.1/by-name/boot");
show_progress(0.100000, 0);
unmount("/system");

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the following 2 lines are added by my self.

Code:

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set_perm(0, 0, 06755, "/system/xbin/su");
symlink("/system/xbin/su", "/system/bin/su");

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Any advices would be appreciated.

xda-developers