10.2 zfs-on-root will not boot after an unclean reboot

[Ricky Huang]

Hello all,

Server got power-cycled by the datacenter (accident) and now it won't boot.  Previous “clear" reboots have always been fine.

It's a ZFS-on-root setup installed via FreeBSD installer and it's now displaying:

> FreeBSD/x86 boot
> ZFS: I/O error - blocks larger than 128K are not supported
> ZFS: can't find dataset u
> 

Any suggestions on where I can begin to diagnose this issue?

Note: I have infrequent access to the server, so please "batch" the suggestions so I can try them when I make my way into the d.c.


Thanks in advance!