Date: Sun, 29 Apr 2018 08:40:49 -0600 From: Alan Somers <asomers@freebsd.org> To: Willem Jan Withagen <wjw@digiware.nl> Cc: Richard Yao <ryao@gentoo.org>, FreeBSD Filesystems <freebsd-fs@freebsd.org>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: Getting ZFS pools back. Message-ID: <CAOtMX2gpuc0ntoxqKJv3iw3x_Dcq99zpcmqE8g%2B2QiDtYPHmZQ@mail.gmail.com> In-Reply-To: <a7fb7ffc-fa5f-4031-c78a-20e7ba618566@digiware.nl> References: <5f836c79-b379-f066-689b-1645e393c5e9@digiware.nl> <E3B39DFA-269A-4041-922E-38F0CF35CB9A@gentoo.org> <a7fb7ffc-fa5f-4031-c78a-20e7ba618566@digiware.nl>
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So your kernel couldn't find the pool. That might be due to a GEOM module that wasn't loaded but should've been (were you using gmirror or geli or something?). Or you might've accidentally destroyed the pool. It would still show up in "zdb -l", albeit in the destroyed state. Or you might've accidentally destroyed the partition. If the pool had resided on the disk's last partition, then "zdb -l /dev/ada0" still would've seen the label, since there's a copy of the label at the end of the device. But if you've reused the disk, then there's no way to know for sure. -Alan On Sun, Apr 29, 2018 at 8:29 AM, Willem Jan Withagen <wjw@digiware.nl> wrote: > On 28/04/2018 20:43, Richard Yao wrote: > >> What is the output of =E2=80=98zpool import=E2=80=98 with no arguments? >> > > If I boot thru aa mem-stick.... > # zpool import > # > > So, empty line > In the mean time I rebuild the system. > > Was able to retreive the data by a convoluted incantation of > 'zpool import -fmNF' or something like that. > Made a full backup, and started fresh. > > --WjW > > > > On Apr 28, 2018, at 11:42 AM, Willem Jan Withagen <wjw@digiware.nl> wrote= : >>> >>> >>> Hi, >>> >>> I had this server crash on me, and first it just complained about not >>> being able to boot because it could not find the guid. >>> >>> Now I cannot even import the pools any longer. >>> Althoug zdb -l /dev/ada0 still gives me data that indicates that there >>> should be a ZFS pool on that partition. >>> >>> Any suggestions on how to get the pools/data back online? >>> >>> Help would be highly appreciated, since restoring it from backups is >>> going to quite some work. >>> >>> Thanx, >>> --WjW >>> _______________________________________________ >>> freebsd-hackers@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers >>> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@f >>> reebsd.org" >>> >> >> > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org= " >
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