From owner-freebsd-questions@FreeBSD.ORG  Mon Dec 20 23:08:34 2004
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Date: Mon, 20 Dec 2004 17:08:31 -0600
From: Frank Knobbe <frank@knobbe.us>
To: Daniel Johansson <donnex@gmail.com>
Message-ID: <20041220230831.GA53582@knobbe.us>
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Subject: Re: Do I have to rebuild my jails too when I rebuild the server?
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On Tue, Dec 21, 2004 at 12:04:54AM +0100, Daniel Johansson wrote:
> Okay, I see. I've not done this with my jails so I think it's time to do it 
> 
> But until now everything has worked anyway, upgraded from 4.9 to 4.10-p5. 
> 
> How important is it to rebuild the jails too?

I don't think it has to do with "importance". Rather it has to do with
"correctness". Jails use the running kernel. You have to rebuild kernel and
world together to prevent them from getting out-of-sync (easy to test with
"top"). Hence, you also have to rebuild your jail-world when you rebuild your
kernel.

Hope that clarifies it.
Regards,
Frank