### What needs to get done We need to be able to launch on an EOL base. Most notably, this means we need to change `/etc/apt/sources.list` or `/etc/apt/sources.list.d/ubuntu.sources` to point to `old-releases.ubuntu.com`. Probably the way to do this is a standalone script we can run inside the provider that: 1. Checks whether the base is EOL (compare to date in `/usr/share/distro-info/ubuntu.csv` using `/etc/os-release` 2. If so, checks if the release is available on `old-releases.ubuntu.com` 3. If yes, changes over the files. This bash script may be sufficient for Ubuntu: ```bash #!/bin/bash set -e function is_eol(){ eol=$(grep -e "^$1" /usr/share/distro-info/ubuntu.csv | awk -F ',' '{print $NF}') if [[ $(date -I) > "${eol}" ]]; then return 0 else return 1 fi } function is_on_old_releases(){ curl -I https://old-releases.ubuntu.com/ubuntu/dists/$1/ | grep -q 200 } function replace_sources(){ for file in /etc/apt/sources.list /etc/apt/sources.list.d/ubuntu.sources; do sed -i -e s/security.ubuntu.com/old-releases.ubuntu.com/ -e s/archive.ubuntu.com/old-releases.ubuntu.com/ "${file}" done } if is_eol $1 && is_on_old_releases $2; then echo replace_sources fi ``` ### Why it needs to get done Support for EOL bases in Rockcraft