It's KDE bro, lol.

Some folks just want a system that's a good tool to accomplish various tasks. (that's me)

But some folks want a complete immersive cinematic-style experience with lots of animations and transitions

Discover was one of the reasons I gave up kde (ceasing to allow different backgrounds for different desktops was another). So it was a package manager? I never did find out because although it kept popping up that it had updates for me, behaving like an annoying phone app, when I tried responding to it out of exasperation nothing happened. Couldn't find a way to uninstall it either, must have been baked in.

There are two problems:

1) Every time I turn on the computer, a pop-up message appears saying: “PolicyKit Agent. GDBus.Error.org.freedesktop.PolicyKit.1.Error.Failed. An authentication agent already exists for the specified subject.”

From what I've read, it's as if more than one authentication process is running in parallel. I found some solutions, but they involve running the systemctl command, which isn't applicable to Devuan because we don't use systemd. It seems the solution would be to restart polikit.service. Perhaps with the command `reboot polikit.service`, with some parameter.

2) The CUPS printer setup wizard, in the "Troubleshooting" section, displays a blank message. I connected the printer to CUPS via the localhost 631 page, and everything worked fine until I tried to print. I then received a printing error message and had to use the printer setup wizard again.

I'm going to mark this issue as SOLVED, and I'm not sure if it's necessary to open a new thread for these two additional details.

Thanks again to everyone, and best regards.

I'll let you know how it goes.

deb http://gnlug.org/pub/devuan/merged/ excalibur main non-free-firmware non-free contrib  
deb http://gnlug.org/pub/devuan/merged/ excalibur-updates main non-free-firmware non-free contrib 
deb http://gnlug.org/pub/devuan/merged/ excalibur-security main non-free-firmware non-free contrib 

That deb822 crap is for the birds. More useless flailing about, much like usrmerge.

It's not nice to be mean to old cantankerous bastards ...  8^D !!!

Best,

A.

You might have a better time using the old-style sources.list. It makes it easier to find typographical errors like the one you made above which I can't find now. There was an extra space somewhere. That's in addition to the error message regarding "Types". I can't figure out what that one means.

You can use this for /etc/apt/sources.list and get rid of the devuan file in sources.list.d.

deb http://deb.devuan.org/merged excalibur main non-free-firmware contrib non-free
deb http://deb.devuan.org/merged excalibur-updates  main non-free-firmware contrib non-free
deb http://deb.devuan.org/merged excalibur-security main non-free-firmware contrib non-free

Ahh ...
Should have known.

The description was the giveaway.

So that makes two of us.

Please ...

Like I said: the end is near.

Best,

A.

And this is something Linux Devuan actually needs to have in the repositories?
Who drummed up this crap?
Incredible ...

I tell you, the end is near.

A.

It's KDE bro, lol.

Some folks just want a system that's a good tool to accomplish various tasks. (that's me)

But some folks want a complete immersive cinematic-style experience with lots of animations and transitions and assorted bouncing and blinging with every color of the rainbow flashing in their eyes, and omg must has rounded corners on EVERYTHING don't ya know.

Devuan Package Information
https://pkginfo.devuan.org/cgi-bin/poli … .68.126.15

And this is something Linux Devuan actually needs to have in the repositories?
Who drummed up this crap?
Incredible ...

I tell you, the end is near.

A.

and the description for Discover software management suite shows:

not sure which desktop OP is currently using and/or which package manager they might be referring to and/or attempting to install.

I'm trying to install gufw, gcalculator, and the graphical package manager... and I can't find them in the Synaptic package manager.

Synaptic is the graphical package manager. Is there another?

I followed your instructions step by step, and here are the results:

1) I ran the command `mv /etc/apt/sources.list /etc/apt/old.style.sources.list` in the terminal.

The terminal output was:

`mv: cannot move '/etc/apt/sources.list' to '/etc/apt/old.style.sources.list': Permission denied`

2) Next, I edited `/etc/apt/sources.list` with `nano`, copying the following:

## Devuan 6 excalibur
## The new style method of using repositories to install software.
## This /etc/apt/sources.list.d/devuan.sources is new style and location file
## The /etc/apt/old.style.sources.list contains the same as this.
## https://linuxconfig.org/ubuntus-reposit … tu-sources

## Normal excalibur sources
Types: deb
#URIs: http://ca.deb.devuan.org/merged
#URIs: http://de.deb.devuan.org/merged
URIs: http://gnlug.org/pub/devuan/merged
#URIs: https://tw1.mirror.blendbyte.net/devuan/merged/
Suites: excalibur excalibur-backports excalibur-proposed-updates  excalibur-updates
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

## excalibur security sources
Types: deb
#URIs: http://ca.deb.devuan.org/merged
#URIs: http://deb.devuan.org/merged
URIs: http://gnlug.org/pub/devuan/merged
#URIs: https://tw1.mirror.blendbyte.net/devuan/merged/
Suites: excalibur-security
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

I clicked Save and Exit.

3) I ran the command `sudo apt update` in the terminal, and this was the output:

$ sudo apt update
Error: Unknown type "Types:" on line 8 of the source list /etc/apt/sources.list
Error: Could not read source lists

I did so, editing /etc/apt/sources.list with the command nano, adding the # symbol and a space to the description of cdrom. I saved and exited. Next, I updated, and the terminal output read “$ sudo apt-get update
[sudo] password for juan:
Reading package lists... Done”

Well, I went back to the Synaptic package manager to look for ufw... and it was gone. So, with version 5 “Daedalus”, the same problem occurred again, with the only difference being that the ufw package was there initially, but I couldn't install it. So I reinstalled version 6 “Excalibur”, where the same difficulty persists.

Your problem is you are not setting up online repositories to get software from your description of after the editing of the source list to put # at the start of the cdrom line then the update showing you nothing shows this. Run this command in the excalibur.

El problema es que no estás configurando repositorios en línea para obtener el software de tu descripción. Después de editar la lista de fuentes, colocas # al principio de la línea del CD-ROM. La actualización muestra que no aparece esto. Ejecuta este comando en Excalibur.

mv /etc/apt/sources.list /etc/apt/old.style.sources.list

Next copy this into the file /etc/apt/sources.list.d/devuan.sources

A continuación, copie esto en el archivo /etc/apt/sources.list.d/devuan.sources.

Creating the file as it will not exist.

Creando el archivo ya que no existirá.

## Devuan 6 excalibur
## The new style method of using repositories to install software.
## This /etc/apt/sources.list.d/devuan.sources is new style and location file
## The /etc/apt/old.style.sources.list contains the same as this.
## https://linuxconfig.org/ubuntus-repository-configuration-ubuntu-sources-have-moved-to-etc-apt-sources-list-d-ubuntu-sources

## Normal excalibur sources
Types: deb
#URIs: http://ca.deb.devuan.org/merged
#URIs: http://de.deb.devuan.org/merged
URIs: http://gnlug.org/pub/devuan/merged 
#URIs: https://tw1.mirror.blendbyte.net/devuan/merged/
Suites: excalibur excalibur-backports excalibur-proposed-updates  excalibur-updates
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

## excalibur security sources
Types: deb
#URIs: http://ca.deb.devuan.org/merged
#URIs: http://deb.devuan.org/merged
URIs: http://gnlug.org/pub/devuan/merged
#URIs: https://tw1.mirror.blendbyte.net/devuan/merged/
Suites: excalibur-security
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

Then

Entonces

apt update

You should see numerous lines pass by as it updates the package cache, and now you should be able to install software with apt.

Debería ver pasar numerosas líneas a medida que actualiza el caché del paquete, y ahora debería poder instalar software con apt.

Edit: Now I notice use sudo at the beginning of the commands.

Editar: Ahora noto que se usa sudo al comienzo de los comandos.

I'll tell you what I was doing: quite confused, I decided to use the USB drive where I had the ISO image of version 5 "Daedalus" and installed it, just to see what would happen. The installation was successful. I found the ufw package in the Synaptic package manager, went to install it... and a pop-up message from Synaptic told me the following: "Insert the disk labeled Devuan 5 into the /media/cdrom drive." I looked for information on how to do this. I had to edit it with nano. I did so, editing /etc/apt/sources.list with the command nano, adding the # symbol and a space to the description of cdrom. I saved and exited. Next, I updated, and the terminal output read “$ sudo apt-get update
[sudo] password for juan:
Reading package lists... Done”

Well, I went back to the Synaptic package manager to look for ufw... and it was gone. So, with version 5 “Daedalus”, the same problem occurred again, with the only difference being that the ufw package was there initially, but I couldn't install it. So I reinstalled version 6 “Excalibur”, where the same difficulty persists.

Thank you to everyone who has contributed to this issue.