如何通过预置文件安装 rsyslog-pgsql 并使用默认答案安装 linux

Question

我有一个安装后脚本：

unset DEBIAN_HAS_FRONTEND DEBIAN_FRONTEND DEBCONF_REDIR DEBCONF_OLD_FD_BASE
export DEBIAN_FRONTEND=noninteractive
aptitude -y install rsyslog-pgsql > /var/tmp/log 2>&1

安装时 (ps ax):

17547 tty1     S+     0:00 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/rsyslog-pgsql.postinst configure
17587 tty1     S+     0:00 /bin/sh /var/lib/dpkg/info/rsyslog-pgsql.postinst configure
17828 tty1     S+     0:00 whiptail --backtitle Package configuration --title Configuring rsyslog-pgsql --output-fd 11 --nocancel --msgbox An error occurred while installing the database:  Password: su: System error  If at this point you choose "retry", you will be prompted with all the  configuration questions once more and another attempt will be made at  performing the operation. "retry (skip questions)" will immediately  attempt the operation again, skipping all questions.  If you choose  "abort", the operation will fail and you will need to downgrade,  reinstall, reconfigure this package, or otherwise manually intervene to  continue using it.  If you choose "ignore", the operation will continue, ignoring further errors from dbconfig-common. 18 77

并等待用户选择。如何跳过所有问题并设置为默认？

Answer 1

安装包
```
$ sudo apt -q -y install pkg
```

安装 debconf 实用程序

# if you don't know the question
$ sudo apt install debconf-utils

找到问题('what is the matrix?')

# find the question you need answered (use less instead)
$ sudo debconf-get-selections | grep pkg

卸载包（清除）
```
$ sudo apt-get purge pkg
```

设置您需要回答的选项

echo 'pkg       thequestionname      type value' | sudo debconf-set-selections;

安装包
```
sudo apt-get install pkg
```

如果您升级有新问题的包，您可以运行在 vagrant 上升级，找到问题然后在生产环境中自动升级之前预置。

    man debconf-set-selections

跟着黑兔。

如何通过预置文件安装 rsyslog-pgsql 并使用默认答案安装 linux

How to install rsyslog-pgsql via preseed file wile install linux with default answers

linux

installation

rsyslog