This is an archive of past FreeBSD releases; it's part of the FreeBSD Documentation Archive.
Don't Panic! Simply restart the system, type -s at the Boot: prompt
to enter Single User mode. At the question about the shell to use,
hit ENTER. You'll be dropped to a # prompt. Enter mount -u / to
remount your root filesystem read/write, then run mount -a to
remount all the filesystems. Run passwd root to
change the root password then run exit
to continue booting.