RetroPie on Ubuntu server 24.02

[Rens]

I have an old HP DC7900, which is gathering dust, I am now experimenting on it to run RetroPie on it.

Inter DUO 3Ghz
8 MB ram
onboard sound.

It currently has Ubuntu Server on it....
i can install and run RetroPie, with lightDM and openbox installed, and removing user from sudo group getting most functionality.

Doing it this way, sound control is an issue, lightdm gives me only master control and was defaulted to mute. When that is unmuted I get audio simultanious on headphones out and speaker out but volume control through retropie front end does not work.
I can see all options though alsamixer but can't pick or control them from retropie..

searching here I found the retropie-for-ubuntu script
https://github.com/MizterB/RetroPie-Setup-Ubuntu
starting fresh (reinstall ubuntu reformatting the drive)
Now the last update to this was for ubuntu 22.04 live server. But thought i'd run it and give it a go.

This runs through the install nicely, I get the splash screen and openbox does run but retropie does not start.

Does anyone have any experience with this script on ubuntu server 24.02?

Or is the splashscreen addition easy to extract and do a manual install as I had with the nice splashscreen and living with or sorting the sound issue?

[Rens]

Please ignore, I did what seemed most simple and plucked the functions I needed from the script and that seems to work.

#! /bin/bash

function enable_plymouth_theme() {
    if [[ -z "$1" ]]; then
        echo "--------------------------------------------------------------------------------"
        echo "| Skipping Plymouth boot splash because no theme name was provided"
        echo "--------------------------------------------------------------------------------"
        echo -e "Skipped\n\n"
        return 255
    fi
    PLYMOUTH_THEME=$1
    echo "--------------------------------------------------------------------------------"
    echo "| Installing Plymouth boot splash and enabling theme '$PLYMOUTH_THEME'"
    echo "--------------------------------------------------------------------------------"
    apt-get install -y $APT_RECOMMENDS plymouth plymouth-themes plymouth-x11
    rm -rf /tmp/plymouth-themes
    git clone --depth=1 https://github.com/HerbFargus/plymouth-themes.git /tmp/plymouth-themes
    mv /tmp/plymouth-themes/* /usr/share/plymouth/themes/
    update-alternatives --install /usr/share/plymouth/themes/default.plymouth default.plymouth /usr/share/plymouth/themes/$PLYMOUTH_THEME/$PLYMOUTH_THEME.plymouth 10
    update-alternatives --set default.plymouth /usr/share/plymouth/themes/$PLYMOUTH_THEME/$PLYMOUTH_THEME.plymouth
    update-initramfs -u
    echo -e "FINISHED enable_plymouth_theme \n\n"
    sleep 2
}

# Hide Boot Messages
function hide_boot_messages() {
    echo "--------------------------------------------------------------------------------"
    echo "| Hiding boot messages"
    echo "--------------------------------------------------------------------------------"
    # Hide kernel messages and blinking cursor via GRUB
    sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT=".*"/GRUB_CMDLINE_LINUX_DEFAULT="quiet splash vt.global_cursor_default=0"/g' /etc/default/grub
    update-grub

    # Hide fsck messages after Plymouth splash
    echo 'FRAMEBUFFER=y' > /etc/initramfs-tools/conf.d/splash
    update-initramfs -u

    # Remove cloud-init to suppress its boot messages
    apt-get purge cloud-init -y
    rm -rf /etc/cloud/ /var/lib/cloud/

    # Disable motd
    touch $USER_HOME/.hushlogin
    chown $USER:$USER $USER_HOME/.hushlogin
    echo -e "FINISHED hide_boot_messages \n\n"
    sleep 2
}



enable_plymouth_theme "retropie-pacman"       # See https://github.com/HerbFargus/plymouth-themes.git for other theme names
hide_boot_messages