Ask Ubuntu Stack Exchange
Ask Ubuntu Stack Exchange

Questions tagged [discover-software-center]

For questions regarding Discover Software Center, an application installer app for KDE.

For questions regarding the Discover Software Center.

The package name is plasma-discover, but it appears on the user side as the "Discover Software Center."

The tag name, , is specific and long to avoid confusion, as there is another unrelated package called discover in the repos.

34 questions
10
votes
1 answer

Getting “The input is not of cabinet format” on Discover

Discover lists 2 items to update: "Dell System Firmware" "UEFI dbx" I don't know how to search for this on the cli. But if I try to install directly in Discover, I get 2 errors “The input is not of cabinet format”. How can I fix this? Ubuntu 22.04.1…
Fernando César
  • 103
  • 1
  • 6
8
votes
1 answer

Kubuntu update yeilds, "no metadata URIs for vendor-directory"

Kubuntu 22.04 with backports (upgraded from Kubuntu 20.04 with backports). When I use Discover to install updates, I get a momentary pop-up in the Discover window that reads "no metadata URIs for vendor-directory". No log files seem to be left…
Sturge
  • 111
  • 1
  • 7
8
votes
1 answer

How to force flatpak to ask for a password

When installing a flatpak that will be installed globally anyone in the sudo group can install a flatpak without sudo. Is there a way to either edit the polkit rules that are installed by flatpak to allow this or to just remove it altogether so…
TrailRider
  • 7,007
  • 3
  • 33
  • 50
6
votes
2 answers

Uninstalling an app I'm not sure how it was installed

Kubuntu 21.10 Foxit Reader is unstable as hell on my PC so I want to remove it, but I don't remember and now can't find how it was installed in the first place so I can do it right. dpkg didn't list it, Discover doesn't list it, snap doesn't list…
Bill in Kansas City
  • 397
  • 2
  • 10
5
votes
3 answers

Software Sources not accessible from Discover

Updated to Kubuntu 22.04 today and i am facing a problem with Software Sources in Discover. I am able to install and remove programs using discover. My password is not being accepted. It was working properly in 21.10. Screen Shots are given…
Sriram Rayadurg
  • 81
  • 1
  • 7
4
votes
1 answer

What is the difference between lvfs and vendor-directory?

What is the difference between lvfs and vendor-directory? KDE has recently added support for lvfs. That is enabled by default, but when looking at the software sources I also see 'vendor-directory - Vendor (Automatic)' I have not been able to find…
BakaKuna
  • 188
  • 8
3
votes
2 answers

Difference between the two Flatpak backends available in apt for Plasma Discover? Is there a problem from Installing both?

So basically I wanted to add Flatpak support to Discover and I came up with these two different Apt commands sudo apt install plasma-discover-flatpak-backend sudo apt install plasma-discover-backend-flatpak They appear to be two different packages…
AttackRoyalty
  • 55
  • 4
3
votes
3 answers

KDE Discover You have no authorization to execute this operation (Kubuntu 20.04)

Since yesterday every time I try to download something from KDE Discover on Kubuntu 20.04 I get the following error. You have no authorization to execute this operation The only way to download software is from the terminal which works without any…
a-regular-pear
  • 31
  • 1
  • 5
3
votes
1 answer

Diverging package lists between APT and KDE Discover

When I boot into Kubuntu 20.04, the Discover application launches and shows me a list of available updates. But when I go to the terminal and do an apt-get update followed by apt-get upgrade these software packages don't appear. This is a new, stock…
bitsmack
  • 131
  • 4
2
votes
0 answers

Can't install KDE app from Discover on my Kubuntu 22.04

I need to install Kalendar on my Kubuntu 22.04, but Discover can't find it. I tried searching in Discover and got infinite loading, tried opening using plasma-discover --application appstream://org.kde.kalendar and got something like Application…
Valentin Petrovich
  • 21
  • 1
2
votes
1 answer

KDE applications installed through plasma-discover not showing, must be launched through Software Center

KDE version: Ubuntu 20.04.3 LTS Plasma Discover Version: 5.18.5-0ubuntu0.1 I rebooted my PC and afterwards, any applications I had previously installed through plasma-discover (https://userbase.kde.org/Discover) no longer show up in the Application…
Zachary Stewart
  • 21
  • 2
2
votes
1 answer

Discover wants to install older kernel version

I have recently installed Kubuntu 21.04, and upgraded the kernel manually to version 5.14 because the wifi adapter was not recognized first and I read in a forum that it has been solved in the new kernel (it works now indeed). If I understand…
csaba
  • 23
  • 4
2
votes
3 answers

How to install deb files on kubuntu without using terminal?

I just installed Kubuntu and downloaded chrome, steam, and Dropbox deb files. When I try to install them using Kubuntu's software manager Discover, it says it can not install from an unsigned repo. Is there a way I can install deb files by double…
Scorb
  • 602
  • 5
  • 27
  • 50
2
votes
0 answers

19.10: Plasma Discover takes a long time before enabling the "update all" button

I've ran into a strange issue today. After clicking on the "you have updates" icon on the notification panel, discover refreshed sources, found updates for the kernel and... nothing. The update all button didn't appear for at least 20s, so I closed…
Syfer Polski
  • 340
  • 1
  • 8
1
vote
0 answers

Discover does not start on Kubuntu 23.04

For some reason Discover doesn't start on Kubuntu for me. This has started happening starting a few weeks ago. I can run apt-get commands just fine from the console with no warnings or errors. There is no output on the console if I run the command…
proteus
  • 111
  • 3
1
2 3