upgrading from an end of life release failed in part because no distro template was available

[Michael Fosgerau]

Description: Ubuntu 19.04
Release: 19.04

sudo do-release-upgrade

Checking for a new Ubuntu release
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife

Get:1 Upgrade tool signature [1,554 B]
Get:2 Upgrade tool [1,329 kB]
Fetched 1,331 kB in 0s (0 B/s)
authenticate 'eoan.tar.gz' against 'eoan.tar.gz.gpg'
extracting 'eoan.tar.gz'

Reading cache

Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Ign http://dk.archive.ubuntu.com/ubuntu disco InRelease
Ign http://dk.archive.ubuntu.com/ubuntu disco-updates InRelease
Ign http://dk.archive.ubuntu.com/ubuntu disco-backports InRelease
Hit http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu disco InRelease
Ign http://dk.archive.ubuntu.com/ubuntu disco-security InRelease
Ign http://archive.ubuntu.com/ubuntu disco InRelease
Ign http://dk.archive.ubuntu.com/ubuntu disco Release
Ign http://dk.archive.ubuntu.com/ubuntu disco-updates Release
Ign http://archive.ubuntu.com/ubuntu disco Release
Ign http://dk.archive.ubuntu.com/ubuntu disco-backports Release
Hit http://apt.postgresql.org/pub/repos/apt disco-pgdg InRelease
Hit http://ppa.launchpad.net/peek-developers/stable/ubuntu disco InRelease
Ign http://dk.archive.ubuntu.com/ubuntu disco-security Release
Err http://archive.ubuntu.com/ubuntu disco/main all Packages
  404 Not Found [IP: 91.189.88.142 80]
...
... alot more 404's
... Ign http://dk.archive.ubuntu.com/ubuntu disco-security/main all c-n-f Metadata
Ign http://dk.archive.ubuntu.com/ubuntu disco-security/main amd64 c-n-f Metadata
Ign http://dk.archive.ubuntu.com/ubuntu disco-security/restricted i386 Packages
Fetched 0 B in 6s (0 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done

Checking for installed snaps

Calculating snap size requirements

Updating repository information

Repository information invalid

Upgrading the repository information resulted in a invalid file so a
bug reporting process is being started.

Restoring original system state

Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: ubuntu-release-upgrader-core 1:19.04.16.9 [origin: unknown]
ProcVersionSignature: Ubuntu 5.0.0-38.41-generic 5.0.21
Uname: Linux 5.0.0-38-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.3
Architecture: amd64
CrashDB: ubuntu
Date: Mon Apr 27 12:43:57 2020
InstallationDate: Installed on 2019-01-07 (475 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to disco on 2020-04-27 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2020-04-27 12:43:32.746742
 Log time: 2020-04-27 12:43:55.215495
 Log time: 2020-04-27 12:43:57.428944

[Brian Murray (brian-murray)]

It may also be because of the "trusted=yes" lines in /etc/apt/sources.list.

[Michael Fosgerau (mfosgerau)]

Thanks. I formatted and installed a-new to 20.04.1 LTS :)