FreeBSD 10.0-RC5 - Installer creates multiple freebsd-boot partitions

[John]

On Fri, Jan 10, 2014 at 08:44:34AM -0700, Peter wrote:
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=185449
> 
> :#gpart show ada0
> => 34 3907029101 ada0 GPT (1.8T)
> 34 128 1 freebsd-boot (64K)
> 162 8388608 2 freebsd-ufs (4.0G)
> 8388770 20971520 3 freebsd-swap (10G)
> 29360290 3877668844 4 freebsd-ufs (1.8T)
> 3907029134 1 - free - (512B)
> 
> 
> ada0p2 had FreeBSD 9 amd64 on it, installing FreeBSD 10 RC5 amd64 to ada0p2
> ada0p4 is my 'data' partition left untouched.
> 
> During install if I delete my OS partition [ada0p2], then create
> partition, the installer complains that I'm missing freebsd-boot even
> though ada0p1 is never touched - I have two options, let it create or
> "ignore";
> 
> If I say create, then I have two 'freebsd-boot' partitions
> If I say ignore [virtualbox fresh 10-RC4 -> 10-RC5] it still boots properly.
 
I have found that, on a brand new rc5 install, if guided partitioning is
selected, then modify anything at all (I wanted to subdivide / so
deleted it then created slices), upon completion of the installation
then rebooting, the boot partition cannot be found.
-- 
John