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Aven Desta
Asked: 2020-03-07 12:19:47 +0800 CST

Why minimal installation just removes packages after installation instead of avoid installing in the first place?

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This might be just one time observation but minimal installation took more time than the normal installation. Then I looked at the logs while installation, and observed that some software packages like libreoffice,Thunderbird, Transmission ... are being removed. So my question is

Does ubuntu-desktop minimal installation just installs all packages that the normal installation installs and then removes some?

If yes, why? why install them in the first place?

EDIT

Just to be clear:

"Minimal installation" is a new option in the Ubuntu 18.04 Desktop installer, not to be confused with the minimal ISO (see tag "ubuntu-minimal")

18.04 minimal-install

1 Answers

  1. Ubuntu install DVD's are of the type "live DVD" https://en.wikipedia.org/wiki/Live_CD

    A live DVD is a copy of the authors installed OS, compressed to usually a 1.? to 3.? GB "squashfs file" ( = an OS image ). Thus everything is installed at OS install time by simply uncompressing the squashfs file. Hence the short install time. The installed files are registered as "installed packages" in the apt data base.

    If surplus packages for some reasons are installed, they will be removed in the OS install process. ( apt remove [package name] ).

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