Thanks Ganesh for the support. We were able to run the script file

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The log of cat /etc/init.d/rcS is : #!/bin/sh # to make data partition as read and write # and to change the some libraries path to data partition # file_data_lib_sh="/var/volatile/data_lib.sh" file_data_lib="/data/lib/libmraa.so.2.0.0" #SFO Added - Start echo "HELLO WORLD" #SFO Added - Stop if [ -f "$file_data_lib" ] then mount -t jffs2 /dev/mtdblock6 /var/volatile if [ -f "$file_data_lib_sh" ] then cp /data/lib/* /var/volatile/lib/ rm /var/volatile/data_lib.sh umount /var/volatile mount -t jffs2 /dev/mtdblock6 /data else umount /var/volatile mount -t jffs2 /dev/mtdblock6 /data fi fi # network service ifup eth0 ifup lo #ssh server service starting /etc/init.d/sshd start # Start all init scripts in /etc/rcS.d and /etc/rc5.d # executing them in numerical order. # for i in /etc/rcS.d/S??* /etc/rc5.d/S??* ;do # Ignore dangling symlinks (if any). [ ! -f "$i" ] && continue case "$i" in *.sh) # Source shell script for speed. ( trap - INT QUIT TSTP set start . $i ) ;; *) # No sh extension, so fork subprocess. $i start ;; esac done

@Ganesh K We are booting from NOR flash. We tried the above method of copying the script file to /data folder, but the script file is not running. Do we need to do anything else for running the script file.

We tried the above step to run our script file at startup but we can't find "/lib/systemd/system/multi-user.target.wants/test.service" in our board. Can you please support.