I am migrating an offline autoinstall ISO from Ubuntu 16.04 to 20.04.
Previously I used the debian-installer preseed file. To disable online mirrors and force an offline install I could use the following line:
d-i apt-setup/no_mirror boolean true
Now I use the cloud-init/autoinstall system and my autoinstall/user-data YAML file is working fine so far:
#cloud-config
autoinstall:
version: 1
interactive-sections:
- network
- keyboard
ssh:
install-server: true
The following link describes the apt section, but nothing is mentioned on offline installations (using only the CD as installation repository): https://curtin.readthedocs.io/en/latest/topics/apt_source.html
Thank you very much for any hint.
