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

Jamie jamie at
Fri Mar 6 12:49:57 PST 2009


    You can do a: "less /var/run/dmesg.boot" and near the beginning of the 
output it displays your system build:

FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.3-RELEASE-p3 #3: Wed Jul 16 14:51:34 CDT 2008
     james at

   This says 6.3 RELEASE, and it will also give the patchlevel (p3)

      - Jamie


   "Wherever you go, there you are!"

On Fri, 6 Mar 2009, Ian Bonnycastle wrote:

> Good afternoon everyone,
> I'm asking this question here because I honestly don't know where to turn to
> otherwise. I've looked through forums, Google search results and the FreeBSD
> handbook without a specific answer. I understand the concept that FreeBSD is
> actually an OS, which is a combination of the kernel and the "world". Ports
> are the extraneous userland which is not mandatory for a working system.
> Now, in order to explain my question, I have to use an analogy: In Linux,
> you can have a kernel version, a distribution version and software versions.
> If you're running kernel 2.6.20, CentOS (as an example) 5.1, and bash
> (another example) 3.2, you know that upgrading can occur at any of those
> levels.
> My actual question is this: Is there a way to tell what version of the
> FreeBSD world you're running outside of "uname -a", which tells you what
> *kernel* version you're running? I do know that any of these can be patched
> to different levels outside of what you've installed from scratch (or
> upgraded to at any particular level), but with Linux, when you run the
> respective commands, you get the *base* revision you started from. In
> FreeBSD, "uname -a" gives you the kernel "base", and "pkg_info" will give
> you the software revision base for a particular port/package. If I have a
> particular FreeBSD system, and know its a modified kernel, how can I tell
> what base was originally on it? I've often updated the kernel on a
> 7.1-RELEASE to 7-STABLE to get more recent updates to the kernel, but the
> base as been left at 7.1-RELEASE. Now, it could have been 7.0-RELEASE or
> 7.x-RELEASE and after upgrading the kernel, is this informaiton stored
> anywhere?
> Also, if this *is* explained somewhere, and I've missed, I honestly
> apologize in advance.
> Thanks,
> Ian
> -- 
> So drop on the deck and flop like a fish.
> _______________________________________________
> freebsd-questions at mailing list
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at"

More information about the freebsd-questions mailing list