I saw posts from 2009 on this mailing list, about a boot issue with ZFS.
I have IBM server with HW RAID10 made from 36 disks.
I'm using FreeBSD 9.2-RELEASE.
From system point of view my raid is seen as 65TiB drive at /dev/mfid0
From ZFS point of view it's plain stripe as one zvol (on mfid0p2). My partition
layout is GPT:
root@backup7:~ # gpart show
=> 34 140624990141 mfid0 GPT (65T)
34 128 1 freebsd-boot (64k)
162 140624990013 2 freebsd-zfs (65T)
It was installed using mfsbsd installer based on FreeBSD 9.2.
This machine has been working happily, until today when I did "reboot". After
that system is unbootable, and throws on boot:
ZFS: i/o error - all block copies unavailable
ZFS: can't find root dsl_dir
My pool is ok, I can boot to it through external ISO (f.e. mfsbsd).
Also "status" shows that everything's fine (screenshot of what my kvm shows
I saw in previous thread
(http://marc.info/?l=freebsd-fs&m=125807564213035&w=2), that there's a patch
for raidz that somewhat fixes that issue in FreeBSD 8.x with raidz.
So far I did try many "solutions" but none helped in that matter.
I did try: update bootcode, move /boot from one place to other, update kernel,
switch between kernel / kernel.old, and several more or less stupid attempts to
Daniel (dmilith) Dettlaff
irc: dmilith on irc.freenode.net
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