Claus Andersen wrote on 05/29/2015 19:17:
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.


I am out of free time so I cannot go deeper in this problem. But from what I see I can confirm your findings - it seems like a bug and it would be good if you can file a PR for it so it will not be lost.

Miroslav Lachman

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