Date: Mon, 03 Nov 2014 14:05:44 -0500 From: Stephen R Guglielmo <srguglielmo@gmail.com> To: Erik Gustafson <gustafson.erik@gmail.com> Cc: FreeBSD Mailing list <freebsd-questions@freebsd.org> Subject: Re: ZFS Root Mount Failure Message-ID: <889081AC-3AD0-403A-82E8-98CCF79F9CC8@gmail.com> In-Reply-To: <CABrb_G_euED_XWOU-msudaWchxoJis5EUi4cfE8=b_YJvnuS2g@mail.gmail.com> References: <E2B4270B-635D-4D75-9AE6-52D5C7830D02@gmail.com> <CABrb_G_euED_XWOU-msudaWchxoJis5EUi4cfE8=b_YJvnuS2g@mail.gmail.com>
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On October 29, 2014 4:49:55 AM EDT, Erik Gustafson <gustafson.erik@gmail.com> wrote: >On Tue, Oct 28, 2014 at 10:40 PM, Stephen R Guglielmo ><srguglielmo@gmail.com >> wrote: > >> Hey list, >> >> I have a machine running ZFS on root. It stopped responding this >morning, >> and upon a reboot, it was unable to mount root from zfs:zroot. It >gave the >> explanation of "error 5." >> >> I played with the mount prompt briefly, but didn't get anywhere. Any >tips >> for diagnosing and fixing the problem? >> > >I had a similar issue recently. Error 5 on mount root. This was in >virtaulbox after some sort of unexpected shutdown. >To resolve i first made a snapshot in virtualbox >booted from freebsd-disc1.iso (install dvd) >zpool import >reboot (and boot from zroot) >zpool scrub > >zpool scrub said that i was going to loose some recently written data >(generated by nightly poudrire build) >I don't remember all, probably I needed some parameter to zpool import >but >all error messages were helpful it was quite easy to get it working >again. > >Good luck and don't forget the backup/snapshot Erik, Thanks for the help! I was able to boot from a FreeBSD 10 CD. I got into the LiveCD shell and imported the zpool with no problems. It said my 4 disks were online. I then rebooted, however I got the same error at the mountroot prompt: "Mounting from zfs:zroot failed with error 5." I'll try to play a bit more, maybe scrubbing it or something from the livecd. Thanks, Steve
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