fix base image build error due to unable to locate sshd-regen-keys

[ananthakr23]

Base image build failed with error:

| DEBUG: Executing shell function rootfs_install_pkgs_download
| Reading package lists...
| Building dependency tree...
| Reading state information...
| E: Unable to locate package sshd-regen-keys
| WARNING: exit code 100 from a shell command.
| DEBUG: Executing shell function rootfs_do_umounts
| DEBUG: Shell function rootfs_do_umounts finished
| DEBUG: Python function do_rootfs_install finished

use IMAGE_INSTALL instead of IMAGE_PREINSTALL to fix the issue as sshd-regen-keys is provided by isar.

[huaqianli]

Hi @ananthakr23 ,

Thank you for recognizing this issue and for your contribution!
Before we proceed, I'd like to confirm: is SSH support an expected requirement for the base image from your angle?

[huaqianli]

Hi @ananthakr23 ,

Thank you for recognizing this issue and for your contribution! Before we proceed, I'd like to confirm: is SSH support an expected requirement for the base image from your angle?

If you agree that SSH functionality (like ssh-root-login and sshd-regen-keys) would be better suited for an example image rather than the base image, please help move those configurations. I believe that would be a cleaner and more modular solution.

Let me know your thoughts!

[ananthakr23]

@huaqianli Thank you for the inputs. Though it is convenient to have ssh-root-login part of base image it is not necessary customization for a base image. I'm ok to remove the ssh-root-login from base image and have it only on example image. I will update the Merge request as suggested.

[ananthakr23]

@huaqianli Updated the MR. Please review.