Date: Thu, 25 Jul 2013 22:23:44 +0200 (CEST) From: =?ISO-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no> To: =?UTF-8?Q?=C5=81ukasz_W=C4=85sikowski?= <lukasz@wasikowski.net> Cc: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Re: ZFS: can't read MOS of pool Message-ID: <alpine.BSF.2.00.1307252202420.35028@mail.fig.ol.no> In-Reply-To: <51F17233.4080903@wasikowski.net> References: <51ED5B69.8050200@wasikowski.net> <alpine.BSF.2.00.1307251813170.35028@mail.fig.ol.no> <51F17233.4080903@wasikowski.net>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --2055831798-1228286545-1374783824=:35028 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT On Thu, 25 Jul 2013 20:45+0200, ?ukasz W?sikowski wrote: > W dniu 2013-07-25 18:40, Trond Endrestøl pisze: > > >> Any hints how to go from here? > > > > I'm only subscribed to freebsd-stable@, but as far as I can tell, no > > one from freebsd-fs@ nor freebsd-stable@ has yet replied. I'm only > > replying to freebsd-stable@. > > > > First, just some quick questions: > > > > Have you by chance upgraded the pool format without upgrading the boot > > blocks? Or was the pool already at 5000? > > > > You didn't mention if you have made any attempt at updating the boot > > blocks after playing with ezjail-admin. > > > > Perhaps you should consider updating the boot blocks once more: > > > > 1. Boot from the live CD. > > > > 2. Import the pool read-only without mounting any fs: > > > > zpool import -f -N -o readonly=on klawisz > > > > 3. Mount the root fs read-only: > > > > mount -r -t zfs klawisz/ROOTFS /tmp/zroot > > > > 4. Update the boot blocks from the files stored in the root fs: > > > > gpart bootcode -b /tmp/zroot/boot/pmbr -p /tmp/zroot/boot/gptzfsboot -i 1 ada0 > > > > 5. Unmount the root fs: > > > > umount /tmp/zroot > > > > 6. Reboot the system, do NOT export the pool. > > > > Hopefully, the updated gptzfsboot stored in ada0p1 will be able to > > read the MOS. > > > > That's all I can think of at the moment. > > > > Best of luck. > > Thank you for your reply. The pool was created with version 5000. I have > updated the boot blocks before (but with exporting pool after). I don't > think that ezjail-admin has anything to do with booting. Never ever leave a pool you intend to boot from in the exported state. Period. ;-) At least that was a big no-no when I started using ZFS a couple of years ago. Maybe this has changed since FreeBSD no longer relies on the zpool.cache file. > I did as you suggested and it didn't help, still MOS can't be read. I'm > pretty sure I can reproduce this problem. I will try to do detailed > guide and post it here. Reading through your post once more, http://pastie.org/private/mtfhkx0wx0vve29xn0plw , I noticed the following: 1. The bootfs property is set to klawisz/ROOTFS for the klawisz pool. 2. The mountpoint property is set to / for the klawisz filesystem. 3. The mountpoint property is set to legacy for the klawisz/ROOTFS filesystem. Maybe item 2 is the cause of all this confusion. I see nothing wrong with items 1 and 3. Perhaps you should reset the mountpoint property for klawisz, using: zfs set mountpoint=legacy klawisz At the same time you may let klawisz/ROOTFS inherit the mountpoint property from klawisz by running: zfs inherit mountpoint klawisz/ROOTFS You should also check the mountpoint properties of all the other filesystems you intend to mount automatically. -- +-------------------------------+------------------------------------+ | Vennlig hilsen, | Best regards, | | Trond Endrestøl, | Trond Endrestøl, | | IT-ansvarlig, | System administrator, | | Fagskolen Innlandet, | Gjøvik Technical College, Norway, | | tlf. mob. 952 62 567, | Cellular...: +47 952 62 567, | | sentralbord 61 14 54 00. | Switchboard: +47 61 14 54 00. | +-------------------------------+------------------------------------+ --2055831798-1228286545-1374783824=:35028--
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