# ls -ld /boot/k*
drwxr-xr-x 2 root wheel 863 Dec 2 15:01 /boot/kernel
Old kernel was removed after one of the posts above.
grep kern /boot/loader.conf
see https://forums.FreeBSD.org/threads/...om-source-is-not-successful.91263/post-631558 in this thread.
# sysctl kern.bootfile
see https://forums.freebsd.org/threads/...om-source-is-not-successful.91263/post-631523
uname -aKU
In general - check that the kernel you are booting is the same you just built.