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Date: Thu, 17 May 2007 10:39:35 +0000 (UTC)
From: Duane Hill <d.hill@yournetplus.com>
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Subject: Re: amd64 FreeBSD Release 5.5 -> 6.2
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On Thu, 17 May 2007, Matthew Seaman wrote:

> Duane Hill wrote:
>>
>> I have a server that, at first, required 5.5 because of the MTA that was
>> running on the server. It no longer is running that particular MTA
>> anymore. I need to upgrade the server to release 6.2.
>>
>> Is it just a matter of changing the release tag within the cvsup file
>> from RELENG_5_5 to RELENG_6_2, removing the contents of /usr/src/*,
>> removing the contents of /usr/obj/*, and doing a clean cvsup?
>
> Pretty much.  You don't actually need to delete /usr/src/*, and not
> doing so will save you some bandwidth.
>
> You should be able to upgrade the system by a routine buildworld,
> buildkernel ... type operation, but beware that you will need to
> recompile all of your ports because of potential shlib version
> clashes.  Ports from 5.5 will still work on 6.2, but later trying to
> update them piecemeal can lead to misery.

I'm using portupgrade. So I will use the switches force a reinstall and to 
act on everything that depends on the reinstalled port (-fr).