On Sat, 10 Apr 2021 17:06:22 -0600
Chris Murphy <li...@colorremedies.com> wrote:

> Right. The block device (partition containing the Btrfs file system)
> must be exclusively used by one kernel, host or guest. Dom0 or DomU.
> Can't be both.
> The only exception I'm aware of is virtiofs or virtio-9p, but I
> haven't messed with that stuff yet.

If you want an FS that allows a block device to be mounted by multiple machines
at the same time, there are a few:

With respect,

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