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political science
Asked: 2019-12-15 15:06:39 +0800 CST

unable to download updates failed to refresh cache the repository download.docker.com does not exist

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I wanted to play some songs when I got to see this unable to download updates

I have a few flv files and I wanted to play them. I am using Ubuntu in a Vmware environment here is when I see all the problems. This one was upgraded from 19.04 to 19.10 my /etc/apt/sources.list file looks like this

# deb cdrom:[Ubuntu 19.04 _Disco Dingo_ - Release amd64 (20190416)]/ disco main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu eoan main
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu eoan-updates main
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-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://archive.ubuntu.com/ubuntu eoan universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco universe
deb http://archive.ubuntu.com/ubuntu eoan-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-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://archive.ubuntu.com/ubuntu eoan multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco multiverse
deb http://archive.ubuntu.com/ubuntu eoan-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-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-src http://us.archive.ubuntu.com/ubuntu/ disco-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 disco partner
# deb-src http://archive.canonical.com/ubuntu disco partner

deb http://archive.ubuntu.com/ubuntu eoan-security main
# deb-src http://security.ubuntu.com/ubuntu disco-security main restricted
deb http://archive.ubuntu.com/ubuntu eoan-security universe
# deb-src http://security.ubuntu.com/ubuntu disco-security universe
deb http://archive.ubuntu.com/ubuntu eoan-security multiverse
# deb-src http://security.ubuntu.com/ubuntu disco-security multiverse

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
deb http://archive.ubuntu.com/ubuntu eoan-backports universe multiverse main
# see the sources.list(5) manual.

https://pastebin.com/CiUTguW7

any other file if I should paste let me know
edit 1
in my /etc/apt/sources.list.d/ there are 2 files

docker.list  linuxuprising-ubuntu-java-eoan.list

and docker.list file has following

deb [arch=amd64] https://download.docker.com/linux/ubuntu eoan stable

and linuxuprising-ubuntu-java-eoan.list file has 

deb http://ppa.launchpad.net/linuxuprising/java/ubuntu eoan main
# deb-src http://ppa.launchpad.net/linuxuprising/java/ubuntu eoan main
docker 19.10

1 Answers

  1. Best Answer

    Let's review...

    The error message says:

    ...The repository 'https://download.docker.com/linux/eoan Release does not have a Release file.'

    You have a source file, /etc/apt/apt.sources.d/dockerlist that contains the following entry:

    deb [arch=amd64] https://download.docker.com/linux/ubuntu eoan stable

    Note the resemblance: Now you know which source is triggering that message. And you know which file that source is in.

    Next, let's try that source URL in a web browser: https://download.docker.com/linux/ubuntu/

    It brings up a web page. If you look on that page under the dists/ link, you will see that Eoan (19.10) is not listed. There are NO packages for your release (Eoan/19.10) at that source.

    As you have discovered, adding a source that has no packages for your release of Ubuntu will trigger warning messages.

    How to eliminate the warning messages:

    1. Delete the source. Use sudo rm on that source file.
    2. Then run sudo apt update to refresh your package database. Always perform an update when you add, delete, or change any package source.
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