How to build applications for uClinux

Hi OneNet,

there is one more explanation to your problem, which seems to be the most possible :

3. Your filesystem is readonly. If you want a r/w filesystem you can use ramfs (volatile, in ram) or jffs2 (non-volatile, in flash). If you use the default filesystem delivered with Microtronix distribution, you probably have some part of the system mounted as ramfs (/var and /tmp I think, check by executing mount without option to see what is mounted and where). You should try to create you r/w file in one of those directories, it should work.

Hope it helps

Pod