Bug#1023735: bullseye: preseed's keyword "default" is not documented

[Askar Safin <safinaskar@gmail.com>]

Package: debian-installer
Severity: normal
Tags: d-i
X-Debbugs-Cc: safinaskar@gmail.com

I'm trying to install bullseye fully automatically using netboot with pressed.cfg embedded in initramfs.
I wonder how to make taskel to install default set of packages. If I don't mention tasksel in preseed
at all, then tasksel asks what packages should be installed (i. e. installation becomes non-automatic).
If I write to pressed "tasksel tasksel/first seen true", then (it seems) tasksel stage is skipped
(instead of installing default set of packages). I was unable to find any answer in documentation
(i. e. appendix B of installation manual and https://www.debian.org/releases/bullseye/example-preseed.txt ).
So I decided to try this: "tasksel tasksel/first default". Susprisiongly, it worked!

So, please, document this "default" syntax. Appendix B and https://www.debian.org/releases/bullseye/example-preseed.txt say
nothing about it.


-- System Information:
Debian Release: 11.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-0.deb9.17-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_WARN, TAINT_UNSIGNED_MODULE
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: unable to detect