Can not upgrade to 21.04

Asked by Kevin Dolan

Hi on trying to upgrade to 21.04 from 20.04 I get the below error message can you help me fix it . Wifi connection is secure
Ign eoan-security InRelease
Err eoan-security Release
  404 Not Found [IP: 2001:67c:1562::18 80]
Fetched 0 B in 0s (0 B/s)

Error during update

A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.

W:Updating from such a repository can't be done securely, and is
therefore disabled by default., W:See apt-secure(8) manpage for
repository creation and user configuration details., E:The repository
' eoan-security Release' does not
have a Release file.

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Manfred Hampl (m-hampl) said :

The configuration of your current system seems to be faulty.

For diagnostic purposes please provide the output of the following commands (to be executed in a terminal window):

uname -a
lsb_release -crid
find /etc/apt -name '*.list' -exec bash -c 'echo -e "\n$1\n"; cat -n "$1"' _ '{}' \;

Remark: Why do you want to upgrade to Ubuntu 21.04? There are only three months of support left for that release. Ubuntu 20.04 will be supported much longer (three and a half years)!

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actionparsnip (andrew-woodhead666) said :

Eoan is Ubuntu 19.10 so you'll need to upgrade to 20.04 first (Focal). The commands given by Manfred will help show what's going on

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