Date: Fri, 17 Apr 2015 13:36:52 +1000 From: Yudi V <yudi.tux@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: mountroot prompt with error2, when trying to boot from a single drive in a 2-way mirror Message-ID: <CACo--mu0DBe_Vh-nayqO--wAY6D2MmS4A%2B9ksoJgb%2BhHsYbo=Q@mail.gmail.com> In-Reply-To: <772eb83d.1c422b92@fabiankeil.de> References: <CACo--mtMq=pLA-n5B2yPGftdUVa0aR6Pox5mRitMLguPXRto0g@mail.gmail.com> <552D135F.9010907@FreeBSD.org> <CACo--muDpFszfQZzGe7%2BvuBc1Y9QQ0u-fgoHCM1kOUny2u5yOg@mail.gmail.com> <05238e5a.6156fafe@fabiankeil.de> <CACo--mte5c8ER-V6hqcZmvsmU2gPtCwMgSsFH29HLrcrLG-yjg@mail.gmail.com> <52922ff3.7b8a6684@fabiankeil.de> <CACo--mtH8Ck1fekC_YutHLORgq5dxGtmKeX9uX1u0u8bWPSCjQ@mail.gmail.com> <772eb83d.1c422b92@fabiankeil.de>
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I cleared the label info on /dev/ada2, still same error. And that disk (ada2) became unavailable. gpart show does not even list the disk or it's partitions. I am guessing zpool labelclear -f /dev/ada2 destroyed the partition table. Answer to Ricky's question: No I used geom names (ada2p3). I cannot figure out the reason for the GUID mismatch (see console image). Any ideas? On Fri, Apr 17, 2015 at 4:26 AM, Fabian Keil <freebsd-listen@fabiankeil.de> wrote: > Yudi V <yudi.tux@gmail.com> wrote: > > > I checked some popular image hosting websites, could not find any that > did > > not use javascript. I can send you the images via email. > > Sure. > > > This is reproducible on a clean install of 9.3 as well. I think it's a > bug. > > I think the problem could be that two of the labels from ada2p3 are picked > up when looking at ada2 itself. Quoting the gptzfsboot man page: > > | After a disk is probed and gptzfsboot determines that the > | whole disk is not a ZFS pool member, the individual partitions > | are probed in their partition table order. > > Putting the pool on p2 and using p3 for swap would probably work around > this, but given that there's free space behind p3 already, it's not > obvious to me why this wasn't already sufficient. > > > Here's the output of zdb -l /dev/ada2p3 > [...] > > > > gpart show ada2 output: > > > > => 34 156301421 ada2 GPT (74G) > > 34 2014 - free - (1M) > > 2048 512 1 freebsd-boot (256k) > > 2560 1536 - free - (768k) > > 4096 8388608 2 freebsd-swap (4.0G) > > 8392704 10485760 - free - (5.0G) > > 18878464 137422848 3 freebsd-zfs (65G) > > 156301312 143 - free - (71k) > > For comparison, no labels are found with this layout > (p3, p4 and p5 are also encrypted, though): > > [fk@kendra ~]$ gpart show > => 40 1250263648 ada0 GPT (596G) > 40 128 1 freebsd-boot (64K) > 168 1880 - free - (940K) > 2048 409600 2 freebsd-zfs (200M) > 411648 8388608 3 freebsd-zfs (4.0G) > 8800256 8388608 4 freebsd-swap (4.0G) > 17188864 1233074816 5 freebsd-zfs (588G) > 1250263680 8 - free - (4.0K) > > [fk@kendra ~]$ zdb -l /dev/ada0 > -------------------------------------------- > LABEL 0 > -------------------------------------------- > failed to unpack label 0 > -------------------------------------------- > LABEL 1 > -------------------------------------------- > failed to unpack label 1 > -------------------------------------------- > LABEL 2 > -------------------------------------------- > failed to unpack label 2 > -------------------------------------------- > LABEL 3 > -------------------------------------------- > failed to unpack label 3 > > Fabian > -- Kind regards, Yudi
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