debconf-set-selections
insert new default values into the debconf database
Synopsis
debconf-set-selections file
debconf-get-selections | ssh newhost debconf-set-selections
add an example, a script, a trick and tips
examples
# Force debconf priority to critical.
debconf debconf/priority select critical
# Override default frontend to readline, but allow user to select.
debconf debconf/frontend select readline
debconf debconf/frontend seen false
source
sudo debconf-set-selections <<< 'tempsqlpw'
sudo debconf-set-selections <<< 'tempsqlpw'
sudo apt-get -y install mysql-server
description
debconf-set-selections
can be used to pre-seed the debconf database with answers,
or to change answers in the database. Each question will be
marked as seen to prevent debconf from asking the question
interactively.
Reads from a
file if a filename is given, otherwise from stdin.
options
--verbose,
-v
verbose output
--checkonly,
-c
only check the input file
format, do not save changes to database
data format
The data is a series of lines. Lines beginning with a # character
are comments. Blank lines are ignored. All other lines set the
value of one question, and should contain four values, each
separated by one character of whitespace. The first value is the
name of the package that owns the question. The second is the
name of the question, the third value is the type of this
question, and the fourth value (through the end of the line) is
the value to use for the answer of the question.
Alternatively, the third value can be "seen"; then the preseed
line only controls whether the question is marked as seen in
debconf’s database. Note that preseeding a question’s value
defaults to marking that question as seen, so to override the
default value without marking a question seen, you need two
lines.
Lines can be continued to the next line by ending them with a "\"
character.
warning
Only use this command to seed debconf values for packages that
will be or are installed. Otherwise you can end up with values in
the database for uninstalled packages that will not go away, or
with worse problems involving shared values. It is recommended
that this only be used to seed the database if the originating
machine has an identical install.
see also
debconf-get-selections
(available in the debconf-utils package)
author
Petter
Reinholdtsen <pere[:at:]hungry[:dot:]com>