I got past the problem where it had the default boot prompt thingie as
0:wd(o,a)kernel, by changing it to 0:wd(0,a)kernel. But now, after I do that,
it just says this:
Error: C: 366846 > 1023 (BIOS limit)
How do I get past this or fix it?
That is not good. Your BIOS doesn't support booting operating systems
beyond 500mb or so.
I would suggest investing in a new disk specifically for FreeBSD, or
rearrange your disk so that FreeBSD's root slice is under cylinder 1024.