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guys. i wanted to install virtualbox on my Ubuntu 18.04 lts,but when i run sudo apt update,i get this : E: Malformed entry 53 in list file /etc/apt/sources.list (Component) E: The list of sources could not be read.

Here is that list:

# deb cdrom:[Ubuntu 18.04 LTS _Bionic Beaver_ - Release amd64 (20180426)]/ bionic main restricted

See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to


newer versions of the distribution.


deb http://lt.archive.ubuntu.com/ubuntu/ bionic main restricted


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic main restricted


Major bug fix updates produced after the final release of the


distribution.


deb http://lt.archive.ubuntu.com/ubuntu/ bionic-updates main restricted


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic-updates main restricted


N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu


team. Also, please note that software in universe WILL NOT receive any


review or updates from the Ubuntu security team.


deb http://lt.archive.ubuntu.com/ubuntu/ bionic universe


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic universe


deb http://lt.archive.ubuntu.com/ubuntu/ bionic-updates universe


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic-updates universe


N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu


team, and may not be under a free licence. Please satisfy yourself as to


your rights to use the software. Also, please note that software in


multiverse WILL NOT receive any review or updates from the Ubuntu


security team.


deb http://lt.archive.ubuntu.com/ubuntu/ bionic multiverse


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic multiverse


deb http://lt.archive.ubuntu.com/ubuntu/ bionic-updates multiverse


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic-updates multiverse


N.B. software from this repository may not have been tested as


extensively as that contained in the main release, although it includes


newer versions of some applications which may provide useful features.


Also, please note that software in backports WILL NOT receive any review


or updates from the Ubuntu security team.


deb http://lt.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse


deb-src http://lt.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse


Uncomment the following two lines to add software from Canonical's


'partner' repository.


This software is not part of Ubuntu, but is offered by Canonical and the


respective vendors as a service to Ubuntu users.


deb http://archive.canonical.com/ubuntu bionic partner


deb-src http://archive.canonical.com/ubuntu bionic partner


deb http://security.ubuntu.com/ubuntu bionic-security main restricted


deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted


deb http://security.ubuntu.com/ubuntu bionic-security universe


deb-src http://security.ubuntu.com/ubuntu bionic-security universe


deb http://security.ubuntu.com/ubuntu bionic-security multiverse
deb http://archive.canonical.com/ubuntu bionic multiverse


deb-src http://archive.canonical.com/ubuntu bionic multiverse


deb http://archive.canonical.com/ubuntu multiverse


deb-src http://archive.canonical.com/ubuntu multiverse


deb http://download.virtualbox.org/virtualbox/debian bionic contrib


deb-src http://download.virtualbox.org/virtualbox/debian bionic contrib


deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse

Sorry,im a newbie in Ubuntu,but as i see the problem is with this one **deb http://archive.canonical.com/ubuntu multiverse** (??)

Where can be a problem? thank u !

Sasha
  • 17

1 Answers1

5

The incorrect line is this one:

deb http://archive.canonical.com/ubuntu multiverse

The ubuntu release name is missing.

The correct line:

deb http://archive.canonical.com/ubuntu bionic multiverse

already exists 2 lines above the incorrect one and it contains the release name: bionic.

You should delete or comment out with a # the incorrect line, save the sources.list file and run:

sudo apt update

right after you save it.

Editing steps:

  1. Open a terminal and type sudo nano /etc/apt/sources.list.
  2. Give your user password to proceed.
  3. Find line 53 (deb http://archive.canonical.com/ubuntu multiverse).
  4. Add # and a space in the beginning of that line.
  5. The line should look like this now: # deb http://archive.canonical.com/ubuntu multiverse.
  6. Press Ctrl-X and answer the question to save the modified file with Y and Enter.
  7. Now the file should be saved and the editor should be closed. Run sudo apt update for the system to be informed about the changes you made and you should be OK.
Stormlord
  • 6,317
  • Can u please write for me steb by step ,what i must do,cuz i only yesterday opened ubuntu universe for myself xD I open the terminal ,what i need to do next to edit that row? im stupid af – Sasha Dec 27 '20 at 13:02
  • I suggest removing that line. Why keep it? – Pilot6 Dec 27 '20 at 13:16
  • I have added the steps you need in my answer. – Stormlord Dec 27 '20 at 13:16
  • @Pilot6, I proposed the commenting out as an easier solution. Removing the line entirely is better of cource. – Stormlord Dec 27 '20 at 13:18
  • Its some kinda magic !Thank u a lot! – Sasha Dec 27 '20 at 13:32
  • You're welcome. Please accept this answer by clicking on the tick sign on the top left of the answer if everything is OK now, so that your issue is marked as solved. :) – Stormlord Dec 27 '20 at 14:20