On Thu, Jul 30, 2020 at 09:16:05AM +1000, Dave Chinner wrote: > if you start with 4k devices, mkfs.xfs will detect 4k > physical/logical devices and set it's sector size to 4k > automatically and hence will work on those devices, but you can't > change this retrospectively.... Alternatively you can force a larger sectors size manually at mkfs time.