add option to install grub or not

scripts/0-preinstall.sh

@@ -155,6 +155,7 @@ echo "
   Generated /etc/fstab:
 "
 cat /mnt/etc/fstab
+if [${GRUB_INSTALL} == "yes"]; then
 echo -ne "
 -------------------------------------------------------------------------
                     GRUB BIOS Bootloader Install & Check
@@ -165,6 +166,7 @@ if [[ ! -d "/sys/firmware/efi" ]]; then
 else
     pacstrap /mnt efibootmgr --noconfirm --needed
 fi
+fi
 echo -ne "
 -------------------------------------------------------------------------
                     Checking for low memory systems <8G

scripts/3-post-setup.sh

@@ -33,8 +33,8 @@ fi
 # set kernel parameter for adding splash screen
 sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT="[^"]*/& splash /' /etc/default/grub
 
-echo -e "Installing CyberRe Grub theme..."
 if [ "$GRUB_THEME" == "cyberRE"]; then
+  echo -e "Installing CyberRe Grub theme..."
   THEME_DIR="/boot/grub/themes"
   THEME_NAME=CyberRe
   echo -e "Creating the theme directory..."
@@ -49,9 +49,11 @@ if [ "$GRUB_THEME" == "cyberRE"]; then
   echo "GRUB_THEME=\"${THEME_DIR}/${THEME_NAME}/theme.txt\"" >> /etc/default/grub
 fi
 
+if [ "$GRUB_INSTALL" == "yes"]; then
 echo -e "Updating grub..."
 grub-mkconfig -o /boot/grub/grub.cfg
 echo -e "All set!"
+fi
 
 echo -ne "
 -------------------------------------------------------------------------

scripts/startup.sh

@@ -287,15 +287,28 @@ read -rep "Please enter your hostname: " nameofmachine
 set_option NAME_OF_MACHINE $nameofmachine
 }
 
+# === install grub or not ===
+grubInstall () {
+  echo -ne "Install grub?:\n"
+  options=(yes no)
+  select_option $? 4 "${options[@]}"
+  grub_install=${options[$?]}
+  set_option GRUB_INSTALL $grub_install
+}
+
 # === select grub theme ===
 grubTheme () {
   clear
   logo
-  echo -ne "Select your grub theme:\n"
-  options=(cyberRE none)
-  select_option $? 4 "${options[@]}"
-  grub_theme=${options[$?]}
-  set_option GRUB_THEME $grub_theme
+  grub_install
+  if ["$GRUB_INSTALL" == "yes"]; then
+    echo -ne "Select your grub theme:\n"
+    options=(cyberRE none)
+    select_option $? 4 "${options[@]}"
+    grub_theme=${options[$?]}
+    set_option GRUB_THEME $grub_theme
+  else
+    set_option GRUB_THEME none
 }
 
 # === Let the user choose AUR helper from predefined list ===