====== Ubuntu — Mirror Configuration ======

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>

===== Ubuntu 24.04+ (Noble, Resolute) =====

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

<code>
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
</code>

Replace ''<release>'' with ''noble'' or ''resolute''.

===== Ubuntu 20.04 / 22.04 (Focal, Jammy) =====

These releases use the classic **sources.list** format.

Replace ''/etc/apt/sources.list'':

<code>
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
</code>

===== Release Reference =====

^ Codename ^ Version ^ Format ^ Local URL ^ Config File ^
| focal | 20.04 LTS | sources.list | ''https://mirror.nplab.bth.se/ubuntu/focal/'' | [[https://mirror.nplab.bth.se/configs/ubuntu/focal.list|focal.list]] |
| jammy | 22.04 LTS | sources.list | ''https://mirror.nplab.bth.se/ubuntu/jammy/'' | [[https://mirror.nplab.bth.se/configs/ubuntu/jammy.list|jammy.list]] |
| noble | 24.04 LTS | deb822 | ''https://mirror.nplab.bth.se/ubuntu/noble/'' | [[https://mirror.nplab.bth.se/configs/ubuntu/noble.sources|noble.sources]] |
| resolute | 26.04 LTS | deb822 | ''https://mirror.nplab.bth.se/ubuntu/resolute/'' | [[https://mirror.nplab.bth.se/configs/ubuntu/resolute.sources|resolute.sources]] |

**Download and apply (run as root):**

Focal / Jammy:
<code bash>
curl -o /etc/apt/sources.list https://mirror.nplab.bth.se/configs/ubuntu/jammy.list
apt-get update
</code>

Noble / Resolute:
<code bash>
curl -o /etc/apt/sources.list.d/ubuntu.sources https://mirror.nplab.bth.se/configs/ubuntu/noble.sources
apt-get update
</code>

===== Notes =====

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