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Date: Sun, 14 Oct 2007 07:40:37 +0200
From: Per olof Ljungmark <peo@intersonic.se>
Organization: Intersonic AB
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To: "Alexandre \"Sunny\" Kovalenko" <alex.kovalenko@verizon.net>
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Cc: current@freebsd.org
Subject: Re: Going from 8.0-CURRENT to RELENG_7
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Alexandre "Sunny" Kovalenko wrote:
> This is basically a warning and an advise -- as usual -- YMMV.
> 
> I have missed HEADS-UP that RELENG_7 has been branched and found myself
> running 8.0 after cvsup/buildworld/installworld cycle. Since I wanted to
> stick to RELENG_7 and since branching occured 2 days ago, I've figured I
> should be able to change tag in SUPFILE cvsup and rebuild.
> 
> Hence the warning: *don't do that* -- buildworld failed midway with 
> 
> /libexec/ld-elf.so.1: Undefined symbol "__mb_sb_limit" referenced from
> COPY relocation in sh.
> 
> and you are left with non-working system.
> 
> Now the advice part: *do not despair* -- you can boot into single user
> mode, use /rescue/sh, manually copy
> 
> /bin/sh
> /usr/bin/make
> /usr/bin/awk
> /usr/sbin/mtree
> /usr/sbin/zic
> /lib/libedit.so.6
> /lib/libncurses.so.7
> 
> from your OBJ directory, then do 'make installworld' twice (something
> non-important failed in the first pass) and you should be back in
> business.
> 
> Hopefully, everyone on the list reads it diligently and does not need
> such advice, but if you shot yourself in the foot, here is the chance to
> avoid reinstalling the system from scratch.

There was no HEADS UP sent, see other recent posts on the topic.

Thank you for the advice!

Per olof