Customize Ubuntu 18.04.2 iso

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Material

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

34416ff83179728d54583bf3f18d42d2  ubuntu-18.04.2-server-amd64.iso

Steps

Using poweriso open this iso file:

/images/2020_02_20_21_54_17_797x300.jpg

preseed directory now:

/images/2020_02_20_21_54_42_581x201.jpg

replace the txt.cfg file:

/images/2020_02_20_21_58_54_596x431.jpg

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

/images/2020_02_20_22_00_30_617x448.jpg

Save as then we could get a new iso.

Verification

Select UEFI in system tab:

/images/2020_02_20_22_19_06_718x484.jpg

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

/images/2020_02_20_22_19_59_640x276.jpg

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

/images/2020_02_20_22_26_16_600x277.jpg