Arch Linux

mgran

Member

Registered: 2017-11-05

Posts: 2

[Solved] Figuring out which package installed a dependency

I recently removed a package which left a number of unneeded dependencies left on my system. I know that I can list unneeded packages using

pacman -Qqdt

but I do not know which ones depended on the package I removed. Is there some way of retrieving this information using pacman?

Last edited by mgran (2017-11-05 20:07:22)

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,721

Website

Re: [Solved] Figuring out which package installed a dependency

Check your pacman.log and see which packages were installed at the same time as the package. If the package is in a binary repository, you can see which packages it depends on with 'pacman -Si <package>'. If it is in the AUR, you can check the dependencies on the web interface. Some AUR helpers can also show you this information. e.g. 'cower -i <aur package>'

---

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

mgran

Member

Registered: 2017-11-05

Posts: 2

Re: [Solved] Figuring out which package installed a dependency

Thank you! 'pacman -Si <package>' was what I was looking for, I was too focused on the query options. Reading pacman.log was also useful.

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,721

Website

Re: [Solved] Figuring out which package installed a dependency

Great! Please remember to mark your thread as solved.

https://wiki.archlinux.org/index.php/Co … ow_to_post

---

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

eschwartz

Fellow

Registered: 2014-08-08

Posts: 4,097

Re: [Solved] Figuring out which package installed a dependency

Check your pacman.log and see which packages were installed at the same time as the package. If the package is in a binary repository, you can see which packages it depends on with 'pacman -Si <package>'. If it is in the AUR, you can check the dependencies on the web interface. Some AUR helpers can also show you this information. e.g. 'cower -i <aur package>'

If it is in the AUR, and you've previously built it, I would hope you also have the cached package file available. In which case you can also use

pacman -Qip /path/to/foo-1.0-1-any.pkg.tar.xz

---

Managing AUR repos The Right Way -- aurpublish (now a standalone tool)