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From: Brandon J. Wandersee <brandon.wandersee@gmail.com>
To: "Bradley T. Hughes" <bradleythughes@fastmail.fm>
Cc: Carmel <carmel_ny@outlook.com>, freebsd-questions@freebsd.org
Subject: Re: mouht r/w partition with ZFS
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Date: Sun, 13 Mar 2016 18:21:13 -0500
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Bradley T. Hughes writes:

>> This is a ZFS filesystem. How can I get read/write access to the files,
>> rc.conf specifically?
>
> I'm assuming your /etc/rc.conf is on the root filesystem. In which case you need to remount / read-write with `mount -uw /`

Perhaps a little better:

`zfs set readonly=off <filesystem_name>`

Either should work in single-user mode, but changing the read-only
status of a ZFS filesystem doesn't reaquire unmounting and re-mounting
it.

-- 
:: Brandon Wandersee
:: brandon.wandersee@gmail.com