As ROOT: RM696-21-3_PR_001:~# cd /home/user RM696-21-3_PR_001:/home/user# tar -zxf ionice.real.tar.gz RM696-21-3_PR_001:/home/user# chmod a+x ionice.real chmod: ionice.real: Operation not permitted RM696-21-3_PR_001:/home/user# ./ionice.real -c 1 -n 7 -p $(pidof meegotouchhome) -sh: ./ionice.real: Operation not permitted RM696-21-3_PR_001:/home/user# ./ionice.real -p $(pidof meegotouchhome) -sh: ./ionice.real: Operation not permitted RM696-21-3_PR_001:/home/user# As USER: ~ $ cd /home/user ~ $ chmod a+x ionice.real chmod: ionice.real: Operation not permitted ~ $ ./ionice.real -c 1 -n 7 -p $(pidof meegotouchhome) ionice.real: ioprio_set failed: Operation not permitted ~ $ ./ionice.real -p $(pidof meegotouchhome) unknown: prio 4 ~ $