cd /usr/src/distrib/amd64/ramdisk_cd
make cleandir
cd /usr/src/distrib/special
make cleandir
cd /usr/src/lib
make cleandir

cd /usr/src/distrib/amd64/ramdisk_cd/rdsshd
make -f Makefile.rdsshd cleandir
make -f Makefile.rdsshd obj
make -f Makefile.rdsshd rdsshd \
    RDSSHD_AUTHORIZED_KEYS=/root/id_ed25519.pub