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The original was posted on /r/ubuntu by /u/tatiwtr on 2023-08-29 23:17:14+00:00.

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I am trying to update to at least Ubuntu 20, but getting the title when I try and do-release-upgrade:

Here’s some console outputs:

~$ lsb_release -a

No LSB modules are available.

Distributor ID: Ubuntu

Description: Ubuntu 18.04.6 LTS

Release: 18.04

Codename: bionic

and

~$ sudo do-release-upgrade -c

Checking for a new Ubuntu release

There is no development version of an LTS available.

To upgrade to the latest non-LTS develoment release

set Prompt=normal in /etc/update-manager/release-upgrades.

and

sudo do-release-upgrade -dc

Checking for a new Ubuntu release

There is no development version of an LTS available.

To upgrade to the latest non-LTS develoment release

set Prompt=normal in /etc/update-manager/release-upgrades.

and

~$ cat /etc/update-manager/release-upgrades

[DEFAULT]

Prompt=lts

and

~$ sudo apt-get update

Hit:1 bionic InRelease

Hit:2 bionic InRelease

Hit:3 bionic InRelease

Hit:4 bionic InRelease

Hit:5 bionic-updates InRelease

Hit:6 bionic-backports InRelease

Hit:7 bionic-security InRelease

Reading package lists… Done

and

~$ sudo apt-get upgrade

Reading package lists… Done

Building dependency tree

Reading state information… Done

Calculating upgrade… Done

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

and

~$ sudo apt-get dist-upgrade

Reading package lists… Done

Building dependency tree

Reading state information… Done

Calculating upgrade… Done

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Did a bunch of googling, I’m not sure what I need to do at this point. It seems this mostly affects people trying to update too early.

I guess my real question is, why is it looking for a development release? “There is no development version of an LTS available.”

Found this very recent post:

But none of the comments worked. Also, not sure that 18.04 is actually EOL: