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Subject: Re: Review D28062 of /usr/src/UPDATING with regard to upgrading
 FreeBSD and inconsistency with the FreeBSD Handbook
To: driesm.michiels@gmail.com, 'Graham Perrin' <grahamperrin@gmail.com>,
 'freebsd-current' <freebsd-current@freebsd.org>
References: <705578b0-9d8e-3ad2-77c2-96a20ad3a16e@gmail.com>
 <000e01d7342f$a5f25b70$f1d71250$@gmail.com>
From: John Baldwin <jhb@FreeBSD.org>
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Date: Wed, 21 Apr 2021 10:16:14 -0700
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On 4/18/21 1:48 AM, driesm.michiels@gmail.com wrote:
>> If etcupdate -p fails before make installworld, then should the subsequent
>> etcupdate be with or without option -B ?
> 
> -p and -B are not related.
> 
> -p deals with changes needed for a correct run of installworld (see above).
> 
> -B uses a freshly built world to speed up the tree comparison; although no
> flags work fine here as well, so -B is not necessarily required.

Technically -B speeds up generating the tree to compare against as it assumes
/usr/obj is up to date and uses that instead of rebuilding some files
generated by buildworld normally.  The actual tree comparison isn't affected.

-- 
John Baldwin