ZFS root failure after 9.2 -> 9.3 ugprade

Patrick Gibson gibblertron at gmail.com
Sun Sep 28 17:49:11 UTC 2014

I just did a freebsd-update upgrade on a 9.2 system with zfsroot and now
when it boots, I get:

Booting from Hard Disk...
Can't find /boot/zfsloader

FreeBSD/x86 boot
Default: disk0:/boot/kernel/kernel
Can't find /boot/kernel/kernel

I've tried booting from a 9.3 install disc and going into the LiveCD and
reinstalling the bootloader with:

gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0

Which says it's installed correctly, but still won't boot. Any advice would
be greatly appreciated.

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