Niklas Salmoukas

@tachang Sadly the structure of `ubuntu-18.04-server-amd64.iso` is not the same. The `preseed` file itself might work (not tested), but the scripts generating the ISO are not compatible at the moment....

@tachang I adjusted the script. It works fine. See the `ubuntu/18.04/build-iso-server-image.sh` script which is part of the `feature/ubuntu-server-image` branch. ```sh # clone branch feature/ubuntu-server-image git clone -b feature/ubuntu-server-image https://github.com/core-process/linux-unattended-installation.git #...

@tachang in that case we need to add a slightly modified `boot-menu.patch`. The timeout is encoded in the `isolinux/isolinux.cfg`.

Consider this approach to lookup the newest server iso images: https://github.com/core-process/linux-unattended-installation/issues/11

@Prodeguerriero Thanks for reporting. Maybe its related to this configuration section: https://github.com/coreprocess/linux-unattended-installation/blob/master/ubuntu/20.04/custom/preseed.cfg#L113

@hexmode Awesome, thanks for the PR! Currently, I am involved in a time-critical project. I can invest some time in my open source projects beginning of November. I am going...

What about: any that is `undefined`?