Date: Thu, 12 Dec 2013 10:13:30 -0800 From: Artem Belevich <art@freebsd.org> To: Andriy Gapon <avg@freebsd.org> Cc: freebsd-fs <freebsd-fs@freebsd.org>, freebsd-stable stable <freebsd-stable@freebsd.org>, Florent Peterschmitt <florent@peterschmitt.fr> Subject: Re: 10.0-BETA4 (upgraded from 9.2-RELEASE) zpool upgrade -> boot failure Message-ID: <CAFqOu6g1ih3Z70Z4gip0BowmSAJ6dE4X8WgR0au1Rx5udmtZXw@mail.gmail.com> In-Reply-To: <52A9ABEF.8080509@FreeBSD.org> References: <52A6EB67.3000103@peterschmitt.fr> <52A99917.2050200@FreeBSD.org> <52A9AA45.2000907@peterschmitt.fr> <52A9ABEF.8080509@FreeBSD.org>
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On Thu, Dec 12, 2013 at 4:28 AM, Andriy Gapon <avg@freebsd.org> wrote: >> Yes, sorry. You can find here the script I use to install: >> >> https://github.com/Leryan/freebsd-zfs-install/blob/master/zfs.sh >> >From zfs.sh: ># Zero ZFS sectors >dd if=/dev/zero of=/dev/${ada}p3 count=560 bs=512 That destroys only half of ZFS uberblocks. The other half is placed at the top of the vdev slices in the pool. There were few reports recently that such 'orphan' ZFS uberblocks were messing up boot on recent FreeBSD versions. Considering lack of details on how exactly your boot fails, this may or may not be the issue in your case. do "zdb -l /dev/ada0" (and all other slices on ada0) and check whether it reports anything unexpected. --Artem
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