Problems booting into ZFS on recent stable/9

[Ivailo Tanusheff]

Hi Cris,

Do you still have the following file: /boot/zfs/zpool.cache ?
I guess that with the kernel upgrade you have just replaced that :) 

This is the file that you can create with:
zpool  set cachefile=/boot/zfs/zpool.cache <pool name>

Regards, 
Ivailo Tanusheff

-----Original Message-----
From: owner-freebsd-stable at freebsd.org [mailto:owner-freebsd-stable at freebsd.org] On Behalf Of Chris Ross
Sent: Monday, July 01, 2013 9:50 PM
To: freebsd-stable at freebsd.org
Cc: freebsd-sparc64 at freebsd.org
Subject: Problems booting into ZFS on recent stable/9


  I had a sparc64 (Netra X1) running a stable/9 from late March 2013.  Actually, the kernel may've been a bit newer than that as I was working with folks to diagnose and repair some Netra-X1 specific issues.  But, ZFS worked fine.  I have two pools, zroot as a RAID1 (using equally sized partitions at the front of two large disks), and a zdata that is a large pool of the remaining space of both disks concatenated together.

  After installing a kernel from a build of [yesterday's] stable/9 today, I now get a failure when trying to boot, which can be seen at the end of this clip from the end of the boot messages below.

  Is anyone aware of a change in recent months that might've caused this, or have any idea what I may've done wrong?  In google'ing I've seen a few posts talking about ways to import the zfs pool to adjust the cache file, but I'm not sure if that is or isn't my problem.  I don't think I did anything specific with configuring cache files for either pool.

  Thoughts are welcome.  I don't have physical access to the machine for quite a few more hours, but when I do should be able to net-boot into the earlier freebsd stable/9 that I originally installed onto this host, and can try a few more things.

                                    - Chris


atapci0: <AcerLabs M5229 UDMA66 controller> port 0x10200-0x10207,0x10218-0x1021b,0x10210-0x10217,0x10208-0x1020b,0x10220-0x1022f at device 13.0 on pci0
atapci0: using PIO transfers above 137GB as workaround for 48bit DMA access bug, expect reduced performance
ata2: <ATA channel> at channel 0 on atapci0
ata3: <ATA channel> at channel 1 on atapci0
rtc0: <Real-Time Clock> at port 0x70-0x71 on isa0
uart0: <16550 or compatible> at port 0x3f8-0x3ff irq 43 on isa0
uart0: console (9600,n,8,1)
uart1: <16550 or compatible> at port 0x2e8-0x2ef irq 43 on isa0 ZFS NOTICE: Prefetch is disabled by default if less than 4GB of RAM is present;
            to enable, add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf.
ZFS filesystem version: 5
ZFS storage pool version: features support (5000) Timecounter "tick" frequency 500000000 Hz quality 1000 Event timer "tick" frequency 500000000 Hz quality 1000 Timecounters tick every 1.000 msec
usbus0: 12Mbps Full Speed USB v1.0
Root mount waiting for: usbus0
ugen0.1: <AcerLabs> at usbus0
uhub0: <AcerLabs OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
uhub0: 2 ports with 2 removable, self powered Trying to mount root from zfs:zroot []...
Mounting from zfs:zroot failed with error 2.

Loader variables:
  vfs.root.mountfrom=zfs:zroot

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