ee etc/fstab
linproc /compat/linux/proc linprocfs rw 0 0

ee /etc/rc.conf
linux_enable=“YES”

mkdir -p /usr/compat/linux/proc 
ln -s /usr/compat /compat
mount linproc

cd /usr/ports/emulators/linux_base-f10 && make install clean

cd /usr/ports/sysutils/lsof && make install clean

cd /usr/ports/sysutils/htop && make reinstall clean