System still install update packages even uncheck "Download updates..." during install OS

[Kent Lin]

Steps to repro:
1. Connect to the internet and install ubuntu-20.04.2.0-desktop-amd64.iso.
2. In the "Updates and other software" page, select "Normal installation", uncheck "Download updates while..." and "Install third-party...".
3. While the system shows "Installation Complete", remove the LAN cable.
4. Reboot system then login, execute "dpkg --list".

Expected results:
The system did not install any update packages.

Actual results:
The system installed update packages.

Please review the attachment.
While connecting to the internet during installation, the system installed linux-image-5.11.0-27-generic and other update packages.
If we don't connect to the internet during installation, the linux-image is 5.8.0-43.

[Kent Lin (kent-jclin)]

@Erich,

Why this is expected?
The user downloads the Ubuntu 20.04.02 image from https://releases.ubuntu.com/20.04/.
The image was built at 2021-02-09 19:07.
The user disables the following in ubiquity while installation. Why all the update packages will still be updated when installation?
1. "Download updates while installing Ubuntu"
2. "Install third-party software for graphics and WiFi hardware and additional media formats"

[Erich Eickmeyer (eeickmeyer)]

Actually, I failed to read that correctly the first time. Are you saying "download", etc. was *not* checked?

[Kent Lin (kent-jclin)]

@Erich,

Correct, those 2 items were "Not" checked.

[Woodrow Shen (woodrow-shen)]

It seems like we just released the point release before filing the bug, and at this point using .3 iso to verify this issue can't be reproduced from my side; the only difference w/ and w/o the networking during installation is firefox-locale-en.

https://releases.ubuntu.com/20.04/ubuntu-20.04.3-desktop-amd64.iso

133c133
< ii firefox-locale-en 91.0.2+build1-0ubuntu0.20.04.1 amd64 English language pack for Firefox
---
> ii firefox-locale-en 91.0+build2-0ubuntu0.20.04.1 amd64 English language pack for Firefox

It may not be a like bug but we need someone from foundation team to identify if it's expected behavior from installer.

[Woodrow Shen (woodrow-shen)]

There is a suspicious thing that needs to confirm with Desktop team;

More specifically, the linux-generic-hwe-20.04 was updated from 5.8 to 5.11 when .2 release is used and with available networking.

So the question will be, is this behavior expected?