From owner-freebsd-bugs@FreeBSD.ORG Fri Jan 14 21:00:22 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 00DBD10656AC for ; Fri, 14 Jan 2011 21:00:22 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 89F128FC1D for ; Fri, 14 Jan 2011 21:00:20 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p0EL0Kxv047984 for ; Fri, 14 Jan 2011 21:00:20 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p0EL0KnB047980; Fri, 14 Jan 2011 21:00:20 GMT (envelope-from gnats) Resent-Date: Fri, 14 Jan 2011 21:00:20 GMT Resent-Message-Id: <201101142100.p0EL0KnB047980@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, alexander naumochkin Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A5CBF1065674 for ; Fri, 14 Jan 2011 20:58:21 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (unknown [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 7B25A8FC08 for ; Fri, 14 Jan 2011 20:58:21 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p0EKwLXn097054 for ; Fri, 14 Jan 2011 20:58:21 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p0EKwLkh097053; Fri, 14 Jan 2011 20:58:21 GMT (envelope-from nobody) Message-Id: <201101142058.p0EKwLkh097053@red.freebsd.org> Date: Fri, 14 Jan 2011 20:58:21 GMT From: alexander naumochkin To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/153996: zfs root mount error while kernel is not located in /boot/kernel X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2011 21:00:22 -0000 >Number: 153996 >Category: kern >Synopsis: zfs root mount error while kernel is not located in /boot/kernel >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jan 14 21:00:20 UTC 2011 >Closed-Date: >Last-Modified: >Originator: alexander naumochkin >Release: 8.2-PRERELEASE (SNAP-20110110) i386 >Organization: >Environment: FreeBSD zombie.prio.ru 8.2-PRERELEASE FreeBSD 8.2-PRERELEASE #0: Tue Jan 11 01:17:21 MSK 2011 root@zombie.prio.ru:/usr/obj/usr/src/sys/GCAM i386 >Description: If the kernel is not located in default directory (/boot/kernel), it fails to mount zfs root during startup regardless of using vfs.root.mountfrom="zfs:zroot" or /etc/fstab record. I use FreeBSD on GPT ZFS Root. [ash@zombie ~]$ gpart show => 34 156301421 ada0 GPT (75G) 34 128 1 freebsd-boot (64K) 162 3145728 2 freebsd-swap (1.5G) 3145890 153155565 3 freebsd-zfs (73G) => 34 156301421 ada1 GPT (75G) 34 128 1 freebsd-boot (64K) 162 3145728 2 freebsd-swap (1.5G) 3145890 153155565 3 freebsd-zfs (73G) [ash@zombie ~]$ gpart show -l => 34 156301421 ada0 GPT (75G) 34 128 1 (null) (64K) 162 3145728 2 swap0 (1.5G) 3145890 153155565 3 disk0 (73G) => 34 156301421 ada1 GPT (75G) 34 128 1 (null) (64K) 162 3145728 2 swap1 (1.5G) 3145890 153155565 3 disk1 (73G) [ash@zombie ~]$ zpool status pool: zroot state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror ONLINE 0 0 0 gpt/disk1 ONLINE 0 0 0 gpt/disk0 ONLINE 0 0 0 >How-To-Repeat: #cd /usr/src #make installkernel KODIR=/boot/GCAM #shutdown -r now Select 6 (loader prompt) from boot menu and enter: OK unload kernel OK load /boot/GCAM/kernel OK set module_path=/boot/GCAM OK load opensolaris OK load zfs OK boot kernel starts, detects hardware, but at "Trying to mount root from zfs:zroot" stops with "MOUNT ROOT ERROR:" Entering zfs:zroot at mountroot> prompt not helps. >Fix: Boot from LiveCD, mount zroot, rename /boot/GCAM to /boot/kernel, reboot :) >Release-Note: >Audit-Trail: >Unformatted: