What is dpkg-reconfigure?

dpkg-reconfigure is a powerful command line tool used to reconfigure an already installed package. Debconf registers the configuration of all installed packages on your system. This tool can actually be used to reconfigure an entire Ubuntu or Debian system installation.

What is sudo dpkg — configure?

The package manager is used to manage these packages. For the Debian system, we can use the dpkg command as a package manager for Installing, removing, and upgrading packages in Debian and Debian-based systems.

How do I reconfigure a package in Ubuntu?

dpkg-reconfigure reconfigures packages after they have already been installed. Pass it the names of a package or packages to reconfigure. It will ask configuration questions, much like when the package was first installed. If you just want to see the current configuration of a package, see debconf-show(1) instead.

What is dpkg option?

dpkg is a tool to install, build, remove and manage Debian packages. The primary and more user-friendly front-end for dpkg is aptitude(1). dpkg itself is controlled entirely via command line parameters, which consist of exactly one action and zero or more options.

What does dpkg-reconfigure Lightdm do?

To change the default display manager on Debian, Ubuntu, Linux Mint, elementary OS and any Debian or Ubuntu-based Linux distribution we’ll use dpkg-reconfigure , a tool provided by debconf, which can be used to reconfigure an already installed package by asking the configuration questions, much like when the package …

What is debconf database?

DESCRIPTION. Debconf is a configuration system for Debian packages. /etc/debconf. conf and ~/. debconfrc are configuration files debconf uses to determine which databases it should use. These databases are used for storing two types of information; dynamic config data the user enters into it, and static template data.

How do you reconfigure Lightdm?

You can try LightDM again with sudo start lightdm. If you have another display manager you want to try (e.g. gdm) start that: sudo start gdm. You can set the default display manager by running sudo dpkg-reconfigure lightdm.

What is debconf set selections?

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.

How can we configure package in Linux?

Adding Packages from Another Repository

  1. Run the dpkg command to ensure that the package is not already installed on the system: cumulus@switch:~$ dpkg -l | grep {name of package}
  2. If the package is installed already, ensure it is the version you need.
  3. Run apt-get update then install the package and upgrade:

What should I do after dpkg?

Simply type dpkg followed by –install or –i option and the . deb file name. Also, the dpkg will not install the package and will leave it in an unconfigurable and broken state. This command will fix the broken package and install the required dependencies assuming they are available in the system repository.

How do I run a .deb file?

Install/Uninstall . deb files

  1. To install a . deb file, simply Right click on the .
  2. Alternatively, you can also install a .deb file by opening a terminal and typing: sudo dpkg -i package_file.deb.
  3. To uninstall a .deb file, remove it using Adept, or type: sudo apt-get remove package_name.

Which display manager is best for Kali Linux?

Perhaps the most popular and certainly the most versatile display manager is LightDM. Having supplanted older display managers in popular distros, it is customizable and feature-packed. LightDM is also lightweight, and supports X.Org and Mir.

How to use dpkg to reconfigure a package?

dpkg-reconfigure reconfigures packages after they have already been installed. Pass it the names of a package or packages to reconfigure. It will ask configuration questions, much like when the package was first installed. If you just want to see the current configuration of a package, see debconf-show (1) instead.

How can I change the default frontend in dpkg?

Select the frontend to use. The default frontend can be permanently changed by: Note that if you normally have debconf set to use the noninteractive frontend, dpkg-reconfigure will use the dialog frontend instead, so you actually get to reconfigure the package.

Is it safe to use dpkg reconfigure on a broken database?

Use with caution; this will prevent dpkg-reconfigure from repairing broken templates databases. However, it may be useful in constrained environments where rewriting the templates database is expensive. -h, –help Display usage help.

How to reconfigure a package in debconf?

Note that if you normally have debconf set to use the noninteractive frontend, dpkg-reconfigure will use the dialog frontend instead, so you actually get to reconfigure the package. Specify the minimum priority of question that will be displayed. dpkg-reconfigure normally shows low priority questions no matter what your default priority is.