how does freebsd know which kernel to boot ?

claudiu vasadi claudiu.vasadi at
Sun Jul 25 14:21:40 UTC 2010

hello ppl,

I was wondering about the following:

After I do "make build|install kernel" and reboot, the new kernel is
automatically booted but the old one is still on the disk. Therefore, how
does FreeBSD know which one to boot ?

I'm guessing it's writing this info somewhere but I do not know where or

Can anyone give me some short description ?

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