Thanks, Ralph.ronnquist, but I already have the sane-airscan package installed.

Okay, Kapqa, I opened the scanner tool's tar.gz package with the command `tar -xzvf (filename) tar.gz`, and it opened in the terminal. Then I ran the command `./install.sh`, and the terminal output was:

“No such file or directory.”

I understand that running the `tar -xzvf` command creates a container folder (I have the file in my Downloads folder). Therefore, I ran the command `cd Downloads`. Next, I copy the file path, and it looks like this:

cd Downloads /home/atlante/Downloads/epsonscan2-6.7.87.0-1.src.tar.gz

If I add ./install.sh to that, it becomes:

cd Downloads /home/atlante/Downloads/epsonscan2-6.7.87.0-1.src.tar.gz ./install.sh . Running this in the terminal, the result is:

“Permission denied.”

I tried logging in as the root user, and the result was the same.

Thanks, Kapqa, for your continued help. I uninstalled the ipp-usb package with the command “sudo apt purge ipp-usb”, restarted my computer, turned on the printer, tried to print… and it failed. So I reinstalled the ipp-usb package.

I'll tell you what I've been doing, because I've been on the lookout: the official Epson Technical Service in my city told me they aren't responsible for software installations that they provide but don't install. They also said they don't install software for individuals (only for companies). I told them they have to be responsible for the quality of the products they supply to the end consumer, and they didn't respond. I might go to the Consumer Protection Office on Wednesday to raise the issue.

I contacted a friend who uses Linux Mint and the same printer as me (he recommended it). We asked if he had the drivers for the latest installation (Linux Mint is currently on version 21.3, and the installed drivers are from version 20, so they're a bit old, but they might still work). He said yes and sent them to me. I saved them in a folder on my computer's desktop. I tried installing the printing package first with Xarchiver... and the error I got was:

"Cannot execute compression. No such file or directory."

I tried using the Gdebi installer... and the error was: "A later version of this package is already installed," which is reasonable.

The scanner package comes as a tar.gz file, so I had the same frustrating result as with the current packages when trying to convert it to a .deb package with the Alien program.

There might be a key piece of information in what you're saying. I had no choice but to resort to ARM architecture because they have the same problem as the drivers of the same type that I download in my country: when I accept the license in the license description box, ideographic characters from another alphabet appear (Chinese, Korean, or Japanese, I'm not sure) and the option to download the drivers disappears. Could it be a mistake by Epson, the company that owns the download page? It's possible... I've thought about it...

I wasn't lucky, what bad luck!

Thank you for trying to help me, Kapqa.

Sending you a hug and sincerely thanking you.

I followed the instructions to log in with my superuser (or "root") password. But first, I removed the printer connected by the administrator (or "sudo").

I updated the CUPS Administration log with my new password (the superuser or "root" password). A detail about the "root" username: it's my first name in lowercase, so there was no need to change it.

So, I saved the new password (the "root" password). I closed the CUPS page and reopened it to log in. The "This page asks you to log in" pop-up window appeared. I checked that my username was there (my first name in lowercase, no problem), and I checked that the new password (the "root" password) was saved. It was saved... I clicked "Log in"... And eternally the pop-up window "This page asks you to log in" appears, allowing me to press the "Log in" button for eternity, which repeats and repeats and repeats the same tedious and frustrating process.

Congratulations! I now have Devuan 6.0 “Excalibur” fully installed and working. The last reinstallation was successful. I performed it from a new USB drive (I suspect the previous one was faulty). Thank you all sincerely.

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.

Thanks, RedGreen925

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

Hi G4sra,

Thanks for your help.

I ran the recommended command, and the terminal output was:

# apt-get update
Reading package lists... Done

Brotherly regards.

Okay. Thanks to everyone for your replies.

Replying to RedGreen925:

Thanks for your help.

I ran the command `apt remove --purge libc6-dev` and the terminal response was “Unable to locate package libc6-dev”.

Then I ran the command `apt install libc6-dev` and the terminal response was “Unable to locate package libc6-dev”.

I ran the command (as root) `apt policy ufw` and the terminal response was “Unable to locate package ufw”. Regarding “gcalculator”, it was a typo on my part. Tux_99 kindly and accurately corrected me below; the correct package name is the one he wrote, “galculator”. I had the same result as with ufw.

I ran the command (as root user) apt install -s libc6-dev and the terminal response was “Could not locate package libc6-dev”.

I tried installing other packages I also use, like Thunderbird and Mirage. In the case of Thunderbird, the terminal's response was, "The package thunderbird could not be located. The package thunderbird is unavailable, but some other package references it. This may mean that the package is missing, obsolete, or only available from some other source."

In the case of Mirage, it was the familiar response, "The package mirage could not be located." Best regards.

Reply to Stultumanto:

Thanks for your help.

I ran the command `apt-get -f install` and the terminal response was “Reading package lists . . . Done. Building dependency tree . . . Done. Reading state information... Done
0 upgraded, 0 new packages to be installed, 0 to remove, and 0 not upgraded.”

I have no connection problems whatsoever. I connect to the internet and the web quickly and perfectly. I can't install anything, Mr. Stultumanto. If you read my reply to RedGreen925, you'll see that I can't install anything.

The terminal output after running the command `apt install synaptic` was: “Synaptic is already up to date (0.91.7).
Set Synaptic as manually installed.
Summary:

Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0”. Best regards.

Reply to Altoid:

Thanks for your help.

I had absolutely no problems with version 5, "Dadaelus." These problems are with version 6, "Excalibur." Best regards.

Reply to Tux_99:

Thanks for your help.

Yes, that's right. I made a mistake. The correct name is the one you mentioned, "galculator." Best regards.

For Greenjeans:

Thanks, Greenjeans. I found the desktop-base folder and was able to make a copy and save it. I know it's not the best solution, but it's helpful while I'm trying to learn how to navigate the file system. I recognize that what I did isn't the best solution.

For Chris2be8:

Thanks for your advice, Chris2be8. I'm going to put it into practice. I didn't even know that command existed. Yes, I'm a complete novice. I was using a distribution that's one of the most beginner-friendly, and it has practically all its functions automated. I realized I wasn't learning much. With Devuan, in the short time I've been using it, I installed the printer, installed plugins, browsers, programs, created my own administrator user (in addition to the root user), created a bootable USB drive, and installed Devuan myself. I know it's very little; I'm still a novice (just a home user), but I'm determined to keep learning. Someone told me that the best way to learn would be to use the parent distribution of the one I was using, which is Debian, but I opted for Devuan, and I'm truly happy with it. I appreciate your advice and will put it into practice.

For Altoid:

Thanks again, Altoid. No, I was able to find it. The answer Greenjeans gave me was very helpful. Of course, yes, I still have a lot, a lot to learn. The answer I gave to Chris2be8 contains some details about my limited level of knowledge. The goal is to keep learning. I find the GNU/Linux world fascinating. I also thank you for the video, although there's a language barrier. Although there are very good videos about Devuan in Spanish, they allowed me to install it myself and adapt this distribution to my needs. Still, I'm reading on.

I also send my thanks to all the participants in this thread. And please excuse my broken English; I'm using a translator.

Hugs to everyone.

I'm going to use a translator. Yes, I have the "desktop-base" package installed in Synaptic. It's marked as installed (green box) in version 1:5.5. I wouldn't need to install that package through the terminal. Sorry if the translation from Spanish to English isn't entirely accurate. Thank you.