How do I determine the FreeBSD "world" revision/version?

[Ivan "Rambius" Ivanov]

Hello,

On Fri, Mar 6, 2009 at 3:12 PM, Ian Bonnycastle <ibonny at gmail.com> wrote:
> If I have a
> particular FreeBSD system, and know its a modified kernel, how can I tell
> what base was originally on it?
Actually, why would you want to know this and how do you define base?

I have a laptop on which I installed years ago FreeBSD 5.5. Then I
upgraded the sources using cvsup to 6.0 and rebuilt it, than again to
6.1, 6.2 and up to 7.1. So what is the base in this case?

Regards
Rambius

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