How to fill in the fsid for file systems?

Sun Nov 4 16:58:50 UTC 2018

On Sun, Nov 04, 2018 at 03:47:16PM +0000, Rick Macklem wrote:
> Oh, and I am not sure what happens w.r.t. the fsid for UFS snapshots?

Superblock for the snapshot is the verbatim copy of the superblock for
the actual UFS volume.  As the consequence, their fsids are same.

You cannot quite substitute the real export by a snapshot export, because
snapshot is read-only.  But if it is fine, equal fsids are also fine.