QA:Testcase Preupgrade low /boot disk space

Description

This case tests upgrading a Fedora system from the current stable release (Fedora 40) to the development release (Rawhide/Fedora 41) using PreUpgrade.

How to test

1. Perform an installation of the stable release (e.g. Fedora 40) with default partitioning (200MB for /boot).
2. Install another kernel on the system. You can locate and download older kernel from the koji build system or by using a koji. For example, the following commands will list available kernels and download a specified kernel package from koji.

   # yum install koji

   # koji list-tagged --quiet dist-f11-updates kernel

   # koji download-build --arch $(uname -p) --arch noarch kernel-2.6.30.5-43.fc11

3. Install the newest available version of preupgrade.
4. Run preupgrade from a command prompt or the Run Application dialog. Provide the requested password for root authorization.
5. On the "Choose desired release" screen, enable "unstable test releases".
6. Choose Rawhide from the list of available upgrade targets, then click Apply.
7. Preupgrade will present a warning dialog noting that additional disk space in /boot is required to complete the upgrade process. Remove older kernels by consulting the instructions at How_to_use_PreUpgrade#Troubleshooting to free more space in /boot], then click Check again
8. When the process completes, click Reboot.
9. The system should reboot, perform the upgrade, and reboot into the new system automatically.
10. Log in to upgraded system, open a terminal, file browser, or other system applications.

Expected Results

1. The preupgrade utility will run to completion, without error.
2. The users are prompted with a low disk-space warning.
3. Removing older kernels allows the upgrade to proceed beyond the low disk-space warning.
4. The system should be upgraded to new version without error.
5. The opened terminal, file browser, or other system applications should display and work correctly.