> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Edward Ned Harvey
> If you rm /etc/zfs/zpool.cache and reboot... The system is smart enough (at
> least in my case) to re-import rpool, and another pool, but it didn't figure
> to re-import some other pool.
> How does the system decide, in the absence of rpool.cache, which pools it's
> going to import at boot?
So, in this thread, I haven't yet got the answer that I expect or believe.
Because, the behavior I observed was:
I did a "zfs send" from one system to another, received onto
/localpool/backups. Side note, the receiving system has three pools: rpool,
localpool, and iscsipool. Unfortunately, I sent the zfs properties with it,
including the mountpoint. Naturally, there was already something mounted on /
and /exports and /exports/home, so the zfs receive failed to mount on the
receiving system, but I didn't notice that. Later, I rebooted.
During reboot, of course, rpool mounted correctly on /, but then the system
found the localpool/backups filesystems, and mounted /exports, /exports/home
and so forth. So when it tried to mount rpool/exports, it failed. Then,
iscsipool was unavailable, so the system failed to bootup completely. I was
able to login to console as myself, but I had no home directory, so I su'd to
I tried to change the mountpoints of localpool/backups/exports and so forth -
but it failed. Filesystem is in use, or filesystem busy or something like
that. (Because I logged in, obviously.) I tried to export localpool, and
again failed. So I wanted some way to prevent localpool from importing or
mounting next time, although I can't make it unmount or change mountpoints this
rm /etc/zfs/zpool.cache ; init 6
This time, the system came up, and iscsipool was not imported (as expected.)
But I was surprised - localpool was imported.
Fortunately, this time the system mounted filesystems in the right order -
rpool/exports was mounted under /exports, and I was able to login as myself,
and export/import / change mountpoints of the localpool filesystems. One more
reboot just to be sure, and voila, no problem.
Point in question is - After I removed the zpool.cache file, I expected rpool
to be the only pool imported upon reboot. That's not what I observed, and I
was wondering how the system knew to import localpool?
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