A wrongly written script deleted /dev/null on my system. I did find an answer here and tried it out. But as soon as I write something to the new /dev/null, the system crashes. I'm afraid that answer's not for BSD.Can anyone help?  It's FreeBSD 10.3
How to create /dev/null on BSD?
freebsd;devices
On FreeBSD:mknod /dev/null c 15 0 root:wheelchmod 0666 /dev/nullAs you found out, numbers 15 and 0 are not portable to other systems.