[Bug 291559] Freshly installed FreeBSD UEFI "Auto (ZFS)" fails to boot when the selected pool name is "boot" and installation type is "Distribution sets"

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291559

            Bug ID: 291559
           Summary: Freshly installed FreeBSD UEFI "Auto (ZFS)" fails to
                    boot when the selected pool name is "boot" and
                    installation type is "Distribution sets"
           Product: Base System
           Version: 15.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: misc
          Assignee: bugs@FreeBSD.org
          Reporter: vedad@kajtaz.net

Created attachment 266077
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=266077&action=edit
UEFI boot failure

Installing a fresh FreeBSD 15.0, using "FreeBSD-15.0-RELEASE-amd64-disc1.iso",
with "Auto (ZFS)" partitioning, selecting "boot" as pool name, results in
post-install UEFI boot failure, with the following message:

(see screenshot of the bhyve/vnc install)

This seems to occur only if both of the following conditions are met:

* The zfs pool is named "boot"
* The "Distributions sets" installation type is selected (I couldn't reproduce
the issue with "Packages" type and a pool named "boot")

Note that everything looks ok at the "Manual configuration" step:

(see screenshot with all of the below)

* "gpart show" shows the efi (which is mountable & mounted) and freebsd-zfs
partitions

* The "bootfs" property is set correctly

* "bectl list" output looks ok

I suspected this to be due to the pool having (by default) "mountpoint"
property set to "/boot", which could have been in conflict with the mountpoint
of the efi partition as per /etc/fstab.

However, removing the mountpoint property ("zfs set mountpoint=none boot") from
"Live system" prior to the first boot did not solve the issue.


Thanks,

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