On Wed, Feb 27, 2019 at 12:33 PM Julien Rouhaud <rjuju123@xxxxxxxxx> wrote: > You can see most obvious reasons at > https://bugzilla.redhat.com/show_bug.cgi?id=1247477 Thanks, I didn't see the lost+found problem because I'm on UFS (I'm wondering if this applies also to ZFS datasetes with mount point). Same story for the accidentally umount, since FreeBSD seems enough friendly to avoid umount while the database is running, but it could definetely happen with some brute force or on another operating system. I see the upgrade problem being a lot more general in this sense. However, all are good points. Luca