I have a package that's installed on my PC as an dependency to another package.

I would like to have the package explicitly installed, but without actually re-installing it, or downloading any files.

Is this possible?


I do not have any packages cached in /var/cache/pacman/pkg, which is one of the reasons I want to change the package detail without a re-install.

Even If I had the packages cached, running pacman -S would mean the whole install proccess is run, which I also want to avoid.

3 Answers 3


I found the answer on Arch Linux Forums

Since pacman 3.4 you can use

# pacman -D

to modify only the database. So:

# pacman -D --asexplicit <pkgs>

will make <pkgs> explicitly installed.

The pacman manpage further describes this command.


pacman -S has a --asexplicit flag that should do what you want.

For example:

> pacman -Qi mutagen            
Install Reason : Installed as a dependency for another package

> pacman -S --asexplicit mutagen
warning: mutagen-1.20-1 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...

Targets (1): mutagen-1.20-1

Total Download Size:    0.00 MB
Total Installed Size:   0.82 MB

> pacman -Qi mutagen
Install Reason : Explicitly installed

You can see that nothing was downloaded since it is already installed locally. It just flipped the "Install Reason" field.

Pacman has different --help operations depending on the operation (-S, -R, etc.). So pacman -S --help lists the --asexplicit flag as one of the available flags. --asdeps is available as well.

  • please see the edits I made to the question
    – Stefan
    Sep 14, 2010 at 11:52

To install only if is not already installed you can use --needed flag:

pacman -S mutagen
pacman -S --needed mutagen clone

Will skip mutagen reinstalation if is already installed by the first command. And you will also get a nice info about that

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