Lubuntu live login error after editing image with Cubic

Marco Castorina

4/21/24, 9:42 AM

I am trying to build a live iso with a default user and some pre-installed packages. I have modified a vanilla Lubuntu 22.04 live image using Cubic. I have installed the packages I need and I have also added a default user as some packages add commands to the user .bashrc.

When booting the live image on VirtualBox I get the following syslog error:

This is the content of /etc/sddm.conf:

Is the user I created causing issues, even though in sddm.conf the default lubuntu user is used? The sddm.conf file is automatically generated. I tried looking for and editing the scripts that generate this file, but I always end up with the lubuntu user instead of the one I specified.

If I switch to another tty, login with the custom user and run startx I can continue with the installation, but I don't want users of this custom image to go through that.

Do you have any suggestions about how to solve this problem? Is there a better way to create a custom iso that also automatically creates a user with the necessary files in their home folder?

1 + 4

lubuntu

Enterprise

5/8/24, 1:47 AM

Are you trying to change the live user name from "lubuntu" to something else? Why do you need a default user preconfigured? (In other words, why can't the user installing the ISO simply chose their own user name and password during installation)?

Marco Castorina

5/13/24, 9:00 AM

A piece of software I wanted to pre-install writes to the `.bashrc` file, so I wanted the image to already have a user with the modified `.bashrc`. In the end I removed the custom user and users of the iso will have to install that software manually if needed.

Enterprise

5/13/24, 9:12 PM

Do you know about the `skel` folder, and have you tried that?

Marco Castorina

5/23/24, 7:41 AM

I was not aware of that. Thanks for the suggestion, I will look into it!

Score:0

Ubuntu

Enterprise

5/23/24, 8:36 PM

In Cubic, navigate to the /etc/skel directory.

This directory contains files that will be copied into the home folder of each new user that is created.
```
cd /etc/skel
```
Then drag your customized .bash file onto the Cubic window to copy it into the current directory.
Click the Copy button, and the file will be copied there.
Once you generate your customized ISO, the .bash file will appear in each new user's home directory. This is because the skel directory acts as a "skeleton" for users' home directories. The adduser command (used by the installer, or whenever you create a new user using the GUI) copies the contents of this directory into the new user's home directory and sets the permissions accordingly.

+ 0

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