Greetings -
I am migrating a pool from FreeBSD 8.0 to OpenSolaris (Nexenta 3.0 RC1). I am
in what seems to be a weird situation regarding this pool. Maybe someone can
help.
I used to boot off of this pool in FreeBSD, so the bootfs property got set:
r...@nexenta:~# zpool get bootfs tank
NAME PROPERTY VALUE SOURCE
tank bootfs tank local
The presence of this property seems to be causing me all sorts of headaches. I
cannot replace a disk or add a L2ARC because the presence of this flag is how
ZFS code (libzfs_pool.c: zpool_vdev_attach and zpool_label_disk) determines if
a pool is allegedly a root pool.
r...@nexenta:~# zpool add tank cache c1d0
cannot label 'c1d0': EFI labeled devices are not supported on root pools.
To replace disks, I was able to hack up libzfs_zpool.c and create a new custom
version of the zpool command. That works, but this is a poor solution going
forward because I have to be sure I use my customized version every time I
replace a bad disk.
Ultimately, I would like to just set the bootfs property back to default, but
this seems to be beyond my ability. There are some checks in libzfs_pool.c that
I can bypass in order to set the value back to its default of "-", but
ultimately I am stopped because there is code in zfs_ioctl.c, which I believe
is kernel code, that checks to see if the bootfs value supplied is actually an
existing dataset.
I'd compile my own kernel but hey, this is only my first day using OpenSolaris
- it was a big enough feat just learning how to compile stuff in the ON source
tree :D
What should I do here? Is there some obvious solution I'm missing? I'd like to
be able to get my pool back to a state where I can use the *stock* zpool
command to maintain it. I don't boot off of this pool anymore and if I could
somehow set the boot.
BTW, for reference, here is the output of zpool status (after I hacked up zpool
to let me add a l2arc):
pool: tank
state: ONLINE
status: The pool is formatted using an older on-disk format. The pool can
still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
pool will no longer be accessible on older software versions.
scan: resilvered 351G in 2h44m with 0 errors on Tue May 25 23:33:38 2010
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
c2t5d0p0 ONLINE 0 0 0
c2t4d0p0 ONLINE 0 0 0
c2t3d0p0 ONLINE 0 0 0
c2t2d0p0 ONLINE 0 0 0
c2t1d0p0 ONLINE 0 0 0
cache
c1d0 ONLINE 0 0 0
errors: No known data errors
Thanks,
Darren
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