Degraded zpool cannot detach old/bad drive

[Artem Belevich]

On Fri, Oct 29, 2010 at 4:42 PM, Rumen Telbizov <telbizov at gmail.com> wrote:
> FreeBSD 8.1-STABLE #0: Sun Sep  5 00:22:45 PDT 2010
> That's when I csuped and rebuilt world/kernel.

There were a lot of ZFS-related MFCs since then. I'd suggest updating
to the most recent -stable and try again.

I've got another idea that may or may not work. Assuming that GPT
labels disappear because zpool opens one of the /dev/mfid* devices,
you can try to do "chmod a-rw /dev/mfid*" on them and then try
importing the pool again.

--Artem