Thanks for the reply, Peter.   I'll start over with a different image.

On Fri, Mar 9, 2018 at 11:32 AM, Peter Robinson <pbrobinson@gmail.com> wrote:
On Fri, Mar 9, 2018 at 4:58 PM, linux guy <linuxguy123@gmail.com> wrote:
> I'm using an RPi with Fedora 27 (of course !) in an environment where it
> sometimes loses power and shuts down prematurely.  This has a tendency to
> corrupt the xfs filesystem that / resides on.
>
> As most of you probably know, it is much, much easier to repair a file
> system error with other file systems, ext4, for example.  It is very time
> consuming to repair an error on an xfs file system.
>
> What would be the disadvantage to mounting / on an ext4 fs rather than xfs ?
> What changes would be needed elsewhere to acomodate this ?

You're using the Server image right? It's the only one of the images
that use xfs and it uses that because that's the defaults for the
Server WG, you could use a minimal image which uses ext4 and still
achieve what you're after.

Peter