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From: =?UTF-8?B?5LmU5qWa?= <honestqiao@gmail.com>
Date: Wed, 1 Jan 2014 23:42:56 +0800
Message-ID: <CAMAY4VhWtLXLJ7fo3kvd5nR76i80uO-6HCOL66k6szQ0K3tY1g@mail.gmail.com>
Subject: boot failure at ZFS: unsupported feature: com.delphix:hole_birth
To: Current FreeBSD <freebsd-current@freebsd.org>
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Today ,I upgrade to
http://svnweb.freebsd.org/base?view=revision&revision=260157

After svn up, make clean, make buildworld, make buildkernel, make
installkernel, reboot, mergemaster -p, make installworld, mergemaster,
reboot, OS can't boot.

Screen show:
ZFS: unsupported feature: com.delphix:hole_birth
gptzfsboot: No ZFS pool located, can't boot.

I'm use root ZFS.
How to recovery it?

Thanks.