( cd lib/modules/5.15.209 ; rm -rf build )
( cd lib/modules/5.15.209 ; ln -sf /usr/src/linux-5.15.209 build )
( cd lib/modules/5.15.209 ; rm -rf source )
( cd lib/modules/5.15.209 ; ln -sf /usr/src/linux-5.15.209 source )
