The local mirror covers Ubuntu 20.04 (Focal), 22.04 (Jammy), 24.04 (Noble), and 26.04 (Resolute Raccoon) for amd64. Security updates, backports, and all components (main, restricted, universe, multiverse) are included.

<WRAP important> Unlike the upstream Ubuntu archive, the local mirror organises releases into separate directories (e.g. /ubuntu/jammy/) rather than a single flat tree. Use the per-release URLs below, not the upstream path structure. </WRAP>

These releases default to deb822 format. Replace /etc/apt/sources.list.d/ubuntu.sources:

Types: deb
URIs: https://mirror.nplab.bth.se/ubuntu/<release>/
Suites: <release> <release>-updates <release>-backports <release>-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Replace <release> with noble or resolute.

These releases use the classic sources.list format.

Replace /etc/apt/sources.list:

deb https://mirror.nplab.bth.se/ubuntu/<release>/ <release> main restricted universe multiverse
deb https://mirror.nplab.bth.se/ubuntu/<release>/ <release>-updates main restricted universe multiverse
deb https://mirror.nplab.bth.se/ubuntu/<release>/ <release>-backports main restricted universe multiverse
deb https://mirror.nplab.bth.se/ubuntu/<release>/ <release>-security main restricted universe multiverse

Download and apply (run as root):

Focal / Jammy:

curl -o /etc/apt/sources.list https://mirror.nplab.bth.se/configs/ubuntu/jammy.list
apt-get update

Noble / Resolute:

curl -o /etc/apt/sources.list.d/ubuntu.sources https://mirror.nplab.bth.se/configs/ubuntu/noble.sources
apt-get update

• The security suite is folded into the same mirror URI (unlike Debian, no separate /security/ subdirectory needed).