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Date: Thu, 13 Feb 2014 11:17:54 +0000
From: Arthur Chance <freebsd@qeng-ho.org>
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To: s m <sam.gh1986@gmail.com>,
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Subject: Re: Fwd: how to mount r/w encrypted partition when it is mount ad
 read-only?
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On 13/02/2014 08:40, s m wrote:
> hello all
> i have an encrypted user partition which is encrypted with geli. user is
> mounted read-only. i want to mount it r/w for a short time, copy some files
> on it and mount it read-only again. with unencrypted partitions, we can
> change mount options. for example if an unencrypted user partition is
> read-only mounted, we can mount it r/w by "mount -rw  /usr" command. but
> for encrypted partitions this command doesn't work and error "device busy"
> occurs.
>
> is there any way to mount r/w encrypted partition when it is mounted as
> read-only?

Does "mount -uw /usr" work? It should update the r/w status of an 
already mounted file system.