RE: How to make apt-get upgrade to work non-interactively?
Apt-get -y dist-upgrade
From: Ivan Teliatnikov [mailto:firstname.lastname@example.org]
Sent: Thursday, 3 March 2005 2:20 a.m.
Subject: How to make apt-get upgrade to work non-interactively?
Dear list users,
I have re-configured debconf to do non-interactive and low critical
levels. Nevertheless occasionally upgrade will not proceed without
user's interaction. I have notices that under such circumstances system
always suggests a meaningful default behaviour. Sometimes it is yes,
sometimes it is no. For example:
Configuration file `/etc/cups/client.conf'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : background this process to examine the situation
The default action is to keep your current version.
*** client.conf (Y/I/N/O/D/Z) [default=N] ?
I want apt-get to stick to the default, how do tell it to do so?
There are two option available for apt-get
--trivial-only - assumes NO as an answer to any prompts
--assume-yes - assumes Yes as an answer to any prompts
Both options is not exactly what I want? Is there such option as
If such option does not exist, how can be automatic upgrade of large
number of machines can be achieved using just apt-get.
I know that one way is to use systemimager, but it is not always
possible if the machine pool is heterogeneous?
Ivan Teliatnikov <email@example.com>
University of Sydney
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