Date: Sat, 16 Jan 2010 00:29:23 +0100 From: Oliver Brandmueller <ob@e-Gitt.NET> To: freebsd-stable@freebsd.org Subject: Re: AHCI and ZFS: root mount error Message-ID: <20100115232922.GM45688@e-Gitt.NET> In-Reply-To: <7ab0356e1001151213y5536d4cdi1d1759ce28ad546a@mail.gmail.com> References: <7ab0356e1001151213y5536d4cdi1d1759ce28ad546a@mail.gmail.com>
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Hi, On Fri, Jan 15, 2010 at 09:13:39PM +0100, Romain Garbage wrote: > After setting ahci_load="YES" in /boot/loader.conf, I get a root mount error. > ahci seems to attach to disk correctly (I get ada0 messages with no error) > > Without ahci_load="YES", system boots fine, with ata module attaching to disk. > > I have a full zfs system, set up following wiki instructions: > http://wiki.freebsd.org/RootOnZFS/ZFSBootPartition > (MBR scheme, ZFS in a FreeBSD slice, together with a swap partition) > > I'm using a GENERIC kernel, RELENG_8 branch. > > My /boot/loader.conf: > zfs_load="YES" > vfs.root.mountfrom="zfs:zroot" > nvidia_load="YES" > snd_hda_load="YES" > tmpfs_load="YES" > coretemp_load="YES" Check with "zpool status" if your zpool refers to diskslices like "ad0s1". I use gpt have setup the ZFS mirror to refer to gptids: pool: silver state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM silver ONLINE 0 0 0 mirror ONLINE 0 0 0 gptid/9e68d234-f306-11de-a0c4-0002b3b6e838 ONLINE 0 0 0 gptid/a025b88c-f306-11de-a0c4-0002b3b6e838 ONLINE 0 0 0 With that kind of configuration I can switch back and forth between using ATA_CAM or using traditional ATA drivers. Since you're not using GPT I gues you can use geom labels to do more or less the same thing. In short: use labels, nut device names. Saves headaches in many cases. - Olli -- | Oliver Brandmueller http://sysadm.in/ ob@sysadm.in | | Ich bin das Internet. Sowahr ich Gott helfe. |
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