Mount: /dev/da0: Operation not permitted

Roland Smith rsmith at
Mon Jun 30 18:25:12 UTC 2014

On Mon, Jun 30, 2014 at 10:32:57AM -0700, Chris Kelley wrote:
> Hi,
> I’m trying to get a USB RAID 1+0 formatted as UFS to mount after a power outage and auto-restart.
> mount(8) errors with “Operation not permitted”. I’ve tried the following:
> # mount -t ufs /dev/da0 /mnt/vault
> mount: /dev/da0: Operation not permitted

Check the ownership and permissions of /dev/da0 and /mnt/vault.

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