problem after create iso

[ludo77]

**Describe the bug
after creating the iso, I get the busybox window

grub >

To reproduce
Steps to reproduce the behavior :

I use your script ./build.sh -

with the config.sh file (which I've modified with my programs):
here's the script:

`#!/bin/bash

This script provides common customization options for the ISO

Usage: Copy this file to config.sh and make changes there. Keep this file (default_config.sh) as-is

so that subsequent changes can be easily merged from upstream. Keep all customiations in config.sh

The version of Ubuntu to generate. Successfully tested: bionic, cosmic, disco, eoan, focal, groovy, jammy

See https://wiki.ubuntu.com/DevelopmentCodeNames for details

export TARGET_UBUNTU_VERSION="jammy"

The Ubuntu Mirror URL. It's better to change for faster download.

More mirrors see: https://launchpad.net/ubuntu/+archivemirrors

export TARGET_UBUNTU_MIRROR="http://us.archive.ubuntu.com/ubuntu/"

The packaged version of the Linux kernel to install on target image.

See https://wiki.ubuntu.com/Kernel/LTSEnablementStack for details

export TARGET_KERNEL_PACKAGE="linux-generic"

The file (no extension) of the ISO containing the generated disk image,

the volume id, and the hostname of the live environment are set from this name.

export TARGET_NAME="ubuntu-from-scratch"

The text label shown in GRUB for booting into the live environment

export GRUB_LIVEBOOT_LABEL="Try Ubuntu FS without installing"

The text label shown in GRUB for starting installation

export GRUB_INSTALL_LABEL="Install Ubuntu FS"

Packages to be removed from the target system after installation completes succesfully

export TARGET_PACKAGE_REMOVE="
ubiquity
casper
discover
laptop-detect
os-prober
"

Package customisation function. Update this function to customize packages

present on the installed system.

function customize_image() {
# install graphics and desktop
apt-get install -y
mate-core
software-properties-common
xorg
xserver-xorg-video-vesa
synaptic
xinit
lightdm
xfonts-base
python3-pip
nano

zotero

wget "https://www.zotero.org/download/client/dl?channel=release&platform=linux-x86_64" -O zotero64.tar.bz2
tar -xf zotero64.tar.bz2
mv Zotero_linux-x86_64 /opt/zotero
cd /opt/zotero
./set_launcher_icon

R et Rstudio

cd /
wget -qO- https://cloud.r-project.org/bin/linux/ubuntu/marutter_pubkey.asc | gpg --dearmor -o /usr/share/keyrings/r-project.gpg
echo "deb [signed-by=/usr/share/keyrings/r-project.gpg] https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/" | tee -a /etc/apt/sources.list.d/r-project.list
apt install --no-install-recommends r-base

wget https://download1.rstudio.org/electron/jammy/amd64/rstudio-2023.03.0-386-amd64.deb
apt install -f ./rstudio-2023.03.0-386-amd64.deb
cd /
rm rstudio-2023.03.0-386-amd64.deb zotero64.tar.bz2

cat < /etc/apt/preferences.d/nosnap
Package: snapd
Pin: release *
Pin-Priority: -1
EOF

cat < /etc/apt/preferences.d/firefox-for-nosnaps
Package: firefox*
Pin: release o=Ubuntu*
Pin-Priority: -1

Package: *
Pin: release o=LP-PPA-mozillateam
Pin-Priority: 99
EOF

cat < /etc/apt/apt.conf.d/50unattended-upgrades-firefox
Unattended-Upgrade::Allowed-Origins:: "LP-PPA-mozillateam:${distro_codename}";
EOF

add-apt-repository ppa:mozillateam/ppa
apt install firefox

pip install jupyterlab

# useful tools
apt-get install -y \
libreoffice \
imagej \
ugene \
vlc \
python3-biopython 

apt update
apt upgrade

}

Used to version the configuration. If breaking changes occur, manual

updates to this file from the default may be necessary.

export CONFIG_FILE_VERSION="0.4"`

Desktop (please complete the following information):

• ubuntu 22.04
• firefox, brave
• 22.04.2