Unable to upgrade ZFS pool to feature flags, SPA version 5000, on stable/9 @ r243825

[Trond Endrestøl]

On Fri, 18 Jan 2013 09:20+0100, Trond Endrestøl wrote:

> I then decided to upgrade the root pool to feature flags, SPA version 
> 5000, and was not so lucky.
> 
> # zpool upgrade -a
> This system supports ZFS pool feature flags.
> 
> cannot upgrade 'zroot': invalid argument for this pool operation

Pilot error.
For some reason I was still running the 9.1-RELEASE kernel.

Now the system happily runs 9.1-STABLE @ r245552.
Sorry for the noise.

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