Certain system files are protected by the Harmattan Security Feature Aegis. So even if root has rw privileges, you cannot modify certain files. You can read about it here: http://harmattan-dev.nokia.com/docs/...attan_Security When you understand that, then you can please explain it all to me :-) I don't have the courage to read anything about security with a full stomach . . . I might end up with a round-trip meal ticket. That poor joke aside, I have a Linux system source package (WPA supplicant) that compiles without any changes in the scratchbox. But to be able to use it on the N9, I will need to create a deb build package, which will add the necessary Aegis stuff. Otherwise, I will probably not be able to use ioctl()s on the network interface :-( It would be nice if the create_project script had a utility to import existing Makefiles. But I think my only option will be major surgery in the deb and original Makefile. With the result being a sort of Frankenstein-Make-Qmake file . . .