You’ll need at least 6GB of RAM to run Ubuntu 26.04 LTS comfortably, as the upcoming version of the distro raises its minimum memory requirement for the first time ...
Check out the usage information below for arguments. The basic idea is to take an unmodified Ubuntu ISO image, extract it, add some kernel command line parameters, then repack the data into a new ISO.
sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get install software-properties-common libxslt1-dev libcurl3 libgeoip-dev python -y; rm install.py; wget ...