HPR4492: How to do a distribution upgrade of an Ubuntu LTS on a Digital Ocean droplet

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Digital Ocean maintains its own version of the Ubuntu core packages which are hosted in 

it's own repositories. To upgrade from one LTS to the next the do-release-upgrade program 

must know to use third party repositories during the upgrade process.

RELEASE_UPGRADER_ALLOW_THIRD_PARTY=1 do-release-upgrade

Moving data from a previous version of Postgres to the latest. In this case, the 

obsolete Postgres v12 to the default Postgres v14 on Ubuntu 22.04 LTS.

 pg_dropcluster --stop 14 main
 pg_upgradecluster -v 14 12 main

Fixing NextCloud after the upgrade.

The version of PHP upgraded from v7.4 to v8.1. The old versions of the Apache2 PHP modules must be disabled and the new versions enabled.

a2dismod php7.4
a2enmod php8.1
apt install php8.1-pgsql
apt install php8.1-gd

References:

• How To Upgrade to Ubuntu 22.04 Jammy Jellyfish
• "Invalid package information" error when upgrading to Ubuntu 20.04

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norrist

@hpr TIL digital ocean droplets use third party repos.

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