I apologize in advance for the lengthy post, but I wanted to include as much context as I could.
BLUF: I am attempting to automate the installation of Ubuntu 24.04 using a local mirror rather than opening any of the boxes to the internet. I have a private mirror hosted at http://101.101.101.101:81/ubuntu, however, if I configure the APT section of my autoinstall.yaml to point to the private mirror it fails to install Ubuntu and the installer crashes.
I know similar questions to this have been asked previously, however, I have yet to find a solution to the problem I'm experiencing. I have clean installed, without any modification, Ubuntu 24.04 on a test box without issue. Then, I was able to verify that my private mirror was reachable from the test box using ping, curl, etc. Next, I stripped down the autoinstall.yaml to only include the version, source, locale, keyboard, timezone, and identity sections and verified that I could successfully reach the autoinstall.yaml (also hosted on http://101.101.101.101:81/ubuntu) and install Ubuntu 24.04 successfully.
Working, minimum autoinstall:
#cloud-config
autoinstall:
version: 1
source:
id: ubuntu-desktop-minimal
locale: en_US.UTF-8
keyboard:
layout: us
timezone: UTC
identity:
hostname: ubuntu-auto-test
username: user
password: <encrypted_password>
The issue comes in when I attempt to add the APT section to point to my private mirror. Keep in mind that my private mirror has the following structure:
http://101.101.101.101:81/ubuntu
|-- noble/
|-- by-hash/
|-- main/
|-- restricted/
|-- universe/
|-- InRelease
|-- Release
|-- Release.gpg
|-- noble-updates/
|-- by-hash/
|-- main/
|-- restricted/
|-- universe/
|-- InRelease
|-- Release
|-- Release.gpg
|-- noble-backports/
|-- by-hash/
|-- main/
|-- restricted/
|-- universe/
|-- InRelease
|-- Release
|-- Release.gpg
|-- noble-security/
|-- by-hash/
|-- main/
|-- restricted/
|-- universe/
|-- InRelease
|-- Release
|-- Release.gpg
Below is a sample of my current attempt at autoinstall.yaml including the APT section, however, I've tried several different configurations at this point:
#cloud-config
autoinstall:
version: 1
source:
id: ubuntu-desktop-minimal
locale: en_US.UTF-8
keyboard:
layout: us
timezone: UTC
identity:
hostname: ubuntu-auto-test
username: user
password: <encrypted_password>
Custom Mirrors
apt:
preserve_sources_list: false
mirror-selection:
primary:
- arches:
- amd64
uri: http://101.101.101.101:81/ubuntu
Install packages
packages:
- vim
When the installer crashes I see some logs stating that it tried to install vim, but couldn't and I find the following logs in /var/crash/.crash:
subiquity.server.controllers.mirror:180 Ign:1 http://101.101.101.101:81/ubuntu noble InRelease
subiquity.server.controllers.mirror:180 Ign:2 http://101.101.101.101:81/ubuntu noble-updates InRelease
subiquity.server.controllers.mirror:180 Ign:3 http://101.101.101.101:81/ubuntu noble-backports InRelease
subiquity.server.controllers.mirror:180 Err:4 http://101.101.101.101:81/ubuntu noble Release
subiquity.server.controllers.mirror:180 404 [IP: 101.101.101.101 81]
subiquity.server.controllers.mirror:180 E: The repository 'http://101.101.101.101:81/ubuntu noble Release' no longer has a Release file.
subiquity.server.controllers.mirror:180 E: The repository 'http://101.101.101.101:81/ubuntu noble-updates Release' no longer has a Release file.
subiquity.server.controllers.mirror:180 E: The repository 'http://101.101.101.101:81/ubuntu noble-backports Release' no longer has a Release file.
Despite the logs showing Ubuntu attempted to install vim (which makes me think that it updated the APT sources to point to the private mirror) I cannot find references to my private mirror in any of the /etc/apt/* files.
Has anyone run into this same problem? How did you fix it? Thank you again for your help.
