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From: darcsis@gmail.com (Denise H. G.)
To: Alexander Best <arundel@freebsd.org>
In-Reply-To: <20111119112418.GA42980@freebsd.org> (Alexander Best's message of
	"Sat, 19 Nov 2011 11:24:18 +0000")
Organization: Pluto The Planet
References: <20111119112418.GA42980@freebsd.org>
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Date: Sun, 20 Nov 2011 17:56:01 +0800
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Cc: freebsd-toolchain@freebsd.org
Subject: Re: 'make installkernel' succeeding on read-only fs?
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On 2011/11/19 at 19:24, Alexander Best <arundel@freebsd.org> wrote:
> 
> hi there,
> just stumbled upon this little detail:
> 
> 1) have "/" mounted read-only
> 2) 'make buildkernel'
> 3) 'make installkernel && echo "success"'
>    -> this will fail
> 4) 'mount -uw /'
> 5) 'make installkernel && echo "success"'
>    -> this will succeed
> 6) 'mount -ur /'
> 7) 'make installkernel && echo "success"'
>    -> this will succeed. why?

According to mount(8), 'mount -ur /' will fail if / is already mounted
read-write with any files currently opened by some processes. I think
this might be your case.

> 
> cheers.
> alex
> ................ 



-- 
If you've got them by the balls,
their hearts and minds will follow.