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Date: Tue, 13 Jan 2015 01:12:23 -0800
From: Ed Martinez <edward.martinez@gmx.us>
To: Julian Hsiao <madoka@nyanisore.net>
Subject: Re: FreeBSD 10.1 encrypted root-on-ZFS without passphrase
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On Mon, 12 Jan 2015 23:43:01 -0800
Julian Hsiao <madoka@nyanisore.net> wrote:

> However, upon reboot I get this error during startup:
> 
> Trying to mount root from zfs:zroot/ROOT/default []...
> Mounting from zfs:zroot/ROOT/default failed with error 2.

Not sure about the encryption. However, this "Troubleshooting" howto
may be of some assistance.

http://www.macfreek.nl/memory/FreeBSD_9_with_ZFS_bootdisk#Troubleshooting

-- 
Ed Martinez <edward.martinez@gmx.us>