Ubuntu

Malformed line 2 in source list /etc/apt/sources.list.d/duinsoft.list (type) E: The list of sources could not be read.

Asked by JANNE ANDERS

Was: attempting to find a way to install repository Universe. Somehow on the way......I lost all my repositories. Can't get any updates, can't get upgrades. I was using 22.04, code name jammy.

 (NOT) really great at this Linux-os. YET!

Trying different suggestions I am lost in the weeds. I followed Ubuntu guide and ended up with the above message.

I attempted a self-fix, by trying to find repositories on my boot usb but it seemed to be worse. Just NEED a working fix!

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Bernard Stafford (bernard010) said : 		#1

Activities -> Type: software & updates ->
Under the Ubuntu software tab ->
make sure the first 4 boxes are check marked.
(main)
(universe)
(restricted)
(multi-universe)
Do not check mark: (source code) or installable from CD rom/dvd
You will have to enter your password to make changes.

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JANNE ANDERS (juju-a) said : 		#2

sudo apt get update
sudo apt update
sudo mv /etc/apt/sources.list ~/
sudo touch /etc/apt/sources.list
software-properties-gtk
sudo sed -i "s/precise/$(lsb_release -c -s)/" /etc/apt/sources.list
sudo touch /etc/apt/sources.list
sudo mv /etc/apt/sources.list /etc/apt/sources.list.old
gksudo gedit /etc/aptsudo mv /etc/apt/sources.list /etc/apt/sources.list.old
gksudo gedit /etc/apt/sources.list
sudo apt install deb http://archive.ubuntu.com/ubuntu/ jammy main restricted universe multiverse
software-properties-gtk
cat /etc/os-release
sudo apt get sources.list
lsb_release -c -s
sudo apt-get update
sudo sudo nano /etc/apt/sources.list.d/some-ppa.list
/etc/apt/sources.list.d/the-board-team-dev-snapshots-natty.list
sudo apt get repositories
gksudo gedit /etc/apt/sources.list.d/the-board-team-dev-snapshots-natty.list
sudo apt update

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Bernard Stafford (bernard010) said : 		#3

The, (main), (universe), (restricted), (multi-universe)
Repositories are already installed out of the box.
Open a terminal[ctl+alt+t]
sudo apt update && sudo apt upgrade
This will check for updates and install them, just answer y if any are present.

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Manfred Hampl (m-hampl) said : 		#4

Based on the title of this question: What is the output of the command

cat -n /etc/apt/sources.list.d/duinsoft.list

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JANNE ANDERS (juju-a) said : 		#5

 1 deb http://www.duinsoft.nl/pkg debs all
     2 sources.list
     3 sudo gedit /etc/apt/sources.list

Revision history for this message
Manfred Hampl (m-hampl) said : 		#6

Some contents of that file are nonsense.
I suggest that you repair that, e.g. with the command

echo "deb https://duinsoft.nl/pkg debs all" | sudo tee /etc/apt/sources.list.d/duinsoft.list

After issuing that command run the command

sudo apt update

and report the results.

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