Date: Thu, 06 Nov 2008 00:00:18 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: =?ISO-8859-1?Q?Marius_N=FCnnerich?= <marius@nuenneri.ch> Cc: freebsd-fs@freebsd.org, freebsd-geom@freebsd.org Subject: Re: zfs: affected by geom_(mbr|bsd) => geom_part_(mbr|bsd) ? Message-ID: <49121772.1040501@icyb.net.ua> In-Reply-To: <b649e5e0811050855rd14434h32c1355bdbf6bf6b@mail.gmail.com> References: <4911C3E9.405@icyb.net.ua> <b649e5e0811050855rd14434h32c1355bdbf6bf6b@mail.gmail.com>
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on 05/11/2008 18:55 Marius Nünnerich said the following: > On Wed, Nov 5, 2008 at 5:03 PM, Andriy Gapon <avg@icyb.net.ua> wrote: >> Using GENERIC amd64 7-BETA2 system (installed from "official" ISO) I >> partitioned my disk for ZFS root file system more or less as described here: >> https://ish.com.au/solutions/articles/freebsdzfs >> >> Big difference is that I created a separate slice to contain a partition >> for ZFS pool, so that ZFS pool is ad4s2d (and UFS2 boot is ad4s1a). >> >> Everything was fine, ZFS root was mounted as expected. >> >> Then I built a custom kernel with nooptions for GEOM_(BSD|MBR) and >> options for GEOM_PART_(BSD|MBR). When I tried to boot this kernel it >> couldn't mount ZFS root and I simply rebooted my machine when I stuck at >> mountroot prompt (I couldn't enter UFS2 root because of unrelated >> keyboard problem). >> The boot was verbose and I didn't see any peculiar GEOM or GEOM_PART >> messages (errors, warnings). >> >> I'll try to debug this further by booting into UFS root and running >> gpart, but I'd like to ask for an advice upfront. >> >> Can something like this be rationally expected? >> Is there a way to make ZFS see its pool again (when booted into UFS root)? > > Afaict geom_part is a little bit more concerned about the correctness > of the partition tables. I think it's possible that you have a bug in > your tables which doesn't matter for geom_mbr or geom_bsd but for > geom_part. I believe that disklabels are correct even for gpart, but this is not proven. Anyway I'll do more tests tomorrow. P.S. I kind of hoped for an advice on ZFS side of things. -- Andriy Gapon
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