I see this error at the end of compilation, both locally and remote OBS :
make: Entering directory `/usr/src/linux-2.6.31.5-0.1-obj/x86_64/default'
make -C ../../../linux-2.6.31.5-0.1 O=/usr/src/linux-2.6.31.5-0.1-obj/x86_64/default/. install
mkdir: cannot create directory `arch': Permission denied
mkdir: cannot create directory `arch': Permission denied
it’s a module package which builds and installs with the command “make install”.