I can't upgrade the apps in Lubuntu 19.04

[cisarro]

Hi:

I am trying to upgrade the softwares in Lubuntu 19.04 but I receive this warning (sorry, my system is configured in spanish) and I didn't remember how to fix it:



sudo apt update
[sudo] contraseña para copper:
Ign:1 http://security.ubuntu.com/ubuntu disco-security InRelease
Obj:2 http://archive.canonical.com disco InRelease
Ign:3 http://archive.ubuntu.com/ubuntu disco InRelease
Err:4 http://security.ubuntu.com/ubuntu disco-security Release
404 Not Found [IP: 91.189.91.39 80]
Obj:5 http://ppa.launchpad.net/rvm/smplayer/ubuntu disco InRelease
Ign:6 http://archive.ubuntu.com/ubuntu disco-updates InRelease
Ign:7 http://archive.ubuntu.com/ubuntu disco-backports InRelease
Err:8 http://archive.ubuntu.com/ubuntu disco Release
404 Not Found [IP: 91.189.88.142 80]
Err:9 http://archive.ubuntu.com/ubuntu disco-updates Release
404 Not Found [IP: 91.189.88.142 80]
Err:10 http://archive.ubuntu.com/ubuntu disco-backports Release
404 Not Found [IP: 91.189.88.142 80]
Leyendo lista de paquetes... Hecho
E: El repositorio «http://security.ubuntu.com/ubuntu disco-security Release» ya no tiene un archivo de lanzamiento.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.
E: El repositorio «http://archive.ubuntu.com/ubuntu disco Release» ya no tiene un archivo de lanzamiento.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.
E: El repositorio «http://archive.ubuntu.com/ubuntu disco-updates Release» ya no tiene un archivo de lanzamiento.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.
E: El repositorio «http://archive.ubuntu.com/ubuntu disco-backports Release» ya no tiene un archivo de lanzamiento.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.


This is my /etc/apt/sources.list



# Automatically generated by Calamares on 2019-06-29.
# Lines starting with "deb" are mandatory, while lines starting with "deb-src"
# are for more detailed package information.


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


## Major bug fix updates produced after the final release of Lubuntu.
## Have you noticed a regression? Please report it!
## https://wiki.ubuntu.com/StableReleaseUpdates#Regressions
deb http://archive.ubuntu.com/ubuntu/ disco-updates main restricted
# deb-src http://archive.ubuntu.com/ubuntu/ disco-updates main restricted


## 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 directly. Updates in this repository
## are provided by volunteers, but most come from Debian.
deb http://archive.ubuntu.com/ubuntu/ disco universe
# deb-src http://archive.ubuntu.com/ubuntu/ disco universe
deb http://archive.ubuntu.com/ubuntu/ disco-updates universe
# deb-src http://archive.ubuntu.com/ubuntu/ disco-updates universe


## Software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu team,
## and may not be under a free licence. Please satisfy yourself as 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 directly.
deb http://archive.ubuntu.com/ubuntu/ disco multiverse
# deb-src http://archive.ubuntu.com/ubuntu/ disco multiverse
deb http://archive.ubuntu.com/ubuntu/ disco-updates multiverse
# deb-src http://archive.ubuntu.com/ubuntu/ disco-updates multiverse


## Software from this repository contains tested security updates from the
## Ubuntu security team.
deb http://security.ubuntu.com/ubuntu disco-security main restricted
# deb-src http://security.ubuntu.com/ubuntu disco-security main restricted
deb http://security.ubuntu.com/ubuntu disco-security universe
# deb-src http://security.ubuntu.com/ubuntu disco-security universe
deb http://security.ubuntu.com/ubuntu disco-security multiverse
# deb-src http://security.ubuntu.com/ubuntu disco-security multiverse


## Software from this repository may not have been tested as extensively as
## software 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://archive.ubuntu.com/ubuntu/ disco-backports main restricted universe multiverse
# deb-src http://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.canonical.com/ disco partner
# deb-src http://archive.canonical.com/ disco partner




Thank you

[guiverc]

Lubuntu 19.04, along with all 19.04 releases are EOL and this is your issue.

http://fridge.ubuntu.com/2020/01/23/ubuntu-19-04-disco-dingo-end-of-life-reached-on-january-23-2020/
https://lubuntu.me/lubuntu-19-04-end-of-life-and-current-support-statuses/

After a release goes EOL, mirrors can drop it, and the main archive.ubuntu.com gets moved to old-releases. Refer to https://help.ubuntu.com/community/EOLUpgrades which will tell you to replace the archive.ubuntu.com with old-releases.ubuntu.com and then fully-upgrade your system (reboot if system updates esp. kernel stack changes), and then read the Lubuntu 19.10 release notes (https://lubuntu.me/eoan-released/) and upgrade to 19.10 asap.

Once on 19.10, you'll need to upgrade to 20.04 very soon anyway as normal releases are only supported for 9 months (19.04 was the 2019-April release so knowing it reached EOL in 2020-Jan was easy), so you could consider a re-install with Lubuntu 20.04 LTS (Manual partitioning, no-format) as it'll be much faster.

Of course backup before you do any of these.

[cisarro]

Thank you very much for your help. I will try it these days.