Customize Ubuntu 18.04.2 iso

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Ubuntu18.04.2 amd64 installation iso, md5sum is listed as:

34416ff83179728d54583bf3f18d42d2  ubuntu-18.04.2-server-amd64.iso


Using poweriso open this iso file:


preseed directory now:


replace the txt.cfg file:


For uefi mode, just replace the boot/grub configuration file:


Save as then we could get a new iso.


Select UEFI in system tab:


Choose sep-small, / will be 100G, /var takes the others:


After installation, login and verify the username/password, disk layout: