Hi!

A quick re-cap: Want to do an unattended FreeBSD install using bsdinstall and ZFS. I now have a workaround and consider crying wol^H^H^Hbug.

The following minimal install script works as expected for UFS:

install-ufs.txt
        DISTRIBUTIONS="kernel.txz base.txz"
        RELEASE="10.1"
        PARTITIONS="da0"

        #!/bin/sh
        echo "Ready for post installation damage..."

Invoke with:
        bsdinstall script install-ufs.txt

Now switching to ZFS I would expect the following to work:

install-zfs1.txt
        DISTRIBUTIONS="kernel.txz base.txz"
        RELEASE="10.1"
        ZFSBOOT_DISKS="da0 da1"
        ZFSBOOT_VDEV_TYPE="mirror"

        #!/bin/sh
        echo "Ready for post installation damage..."

Invoke with:
        bsdinstall script install-zfs1.txt

Failure:
        - ZFSBOOT_DISKS, ZFSBOOT_VDEV_TYPE not picked up
        - Asks for ZFS configuration interactively

Miroslav Lachman hinted that from looking at the source I should set NONINTERACTIVE. This does not work.

Hours later I have figure out the following which works(tm):

install-zfs2.txt
        DISTRIBUTIONS="kernel.txz base.txz"
        RELEASE="10.1"
        export ZFSBOOT_DISKS="da0 da1"
        export ZFSBOOT_VDEV_TYPE="mirror"
        export nonInteractive="YES"

        #!/bin/sh
        echo "Ready for post installation damage..."

Invoke with:
        bsdinstall script install-zfs2.txt

This works as expected but it does not sit nice with me. But I am no guru so I would be very very happy if anyone can confirm if my findings are bogus or not? There is a huge number of indirect variables which really confuses me! It seems that either someone is putting in a lot of indirections but is not done yet - or vice versa. So "proper" usage is up in the air.

Findings:
- CAPITAL letters are used for "input" variables
- CamelCase is used for "internal" variables.
- NONINTERACTIVE should be set by default when using "bsdinstall script"
- Setting NONINTERACTIVE manually is not picked up
- Setting nonInteractive works but is bad practice and not intended by design - Doing export as part of the bsdinstall script is not what was intended by design

Does these findings sound reasonable? If so - would it be fair to consider the current functionality a bug? Or am I too stupid to get the feature?

I can file a PR and help out with test and documentation. But the current incarnation of bsdinstall is too convoluted for my low level of script-fu.

Kind Regards,
Claus Andersen
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