nw driver selection needs to be checklist

- to be able to select both wifi and lan drivers for example
- improve some returns

lib/util-base.sh

@@ -101,6 +101,7 @@ install_extra() {
     for p in ${cpkgs}; do
         ! grep "$p" /mnt/.base && options+=("$p" "" off)
     done
+    nb="$((${#options[@]}/3))"; (( nb>20 )) && nb=20 # if list too long limit
     DIALOG " $_InstComTitle " --checklist "\n$_InstComBody\n\n$_UseSpaceBar\n  " 0 50 $nb "${options[@]}" 2>${PACKAGES}
 
     # If at least one package, install.
@@ -231,7 +232,7 @@ install_base() {
     # Create the base list of packages
     echo "" > /mnt/.base
     # Choose kernel and possibly base-devel
-    DIALOG " $_InstBseTitle " --checklist "\n$_InstStandBseBody$_UseSpaceBar\n " 0 0 13 \
+    DIALOG " $_InstBseTitle " --checklist "\n$_InstStandBseBody$_UseSpaceBar\n " 0 0 20 \
       "yaourt + base-devel" "-" off \
       $(cat /tmp/.available_kernels | awk '$0=$0" - off"') 2>${PACKAGES} || return 0
       cat ${PACKAGES} | sed 's/+ \|\"//g' | tr ' ' '\n' >> /mnt/.base

lib/util-desktop.sh

@@ -40,13 +40,13 @@ setup_network_drivers() {
     if [[ $(mhwd -l | awk '/network-/' | wc -l) -eq 0 ]]; then 
         DIALOG " $_InstNWDrv " --msgbox "\n$_InfoNWKernel\n " 0 0
     else
-        DIALOG " $_InstGrDrv " --radiolist "\n$_UseSpaceBar\n " 0 0 12 \
+        DIALOG " $_InstGrDrv " --checklist "\n$_UseSpaceBar\n " 0 0 12 \
           $(mhwd -l | awk '/network-/{print $1}' |awk '$0=$0" - off"')  2> /tmp/.network_driver || return 0
 
         if [[ $(cat /tmp/.driver) != "" ]]; then
             clear
             arch_chroot "mhwd -f -i pci $(cat /tmp/.network_driver)" 2>$ERR
-            check_for_error "install $(cat /tmp/.network_driver)" $?
+            check_for_error "install $(cat /tmp/.network_driver)" $? || return 1
         else
             DIALOG " $_ErrTitle " --msgbox "\nNo network driver selected\n " 0 0
             check_for_error "No network-driver selected."

lib/util-menu.sh

@@ -178,7 +178,7 @@ install_drivers_menu() {
             "1") install_graphics_menu
                 HIGHLIGHT_SUB=2
                 ;;
-            "2") setup_network_drivers
+            "2") setup_network_drivers || DIALOG " $_InstBseTitle " --infobox "\n$_InstFail\n " 0 0
                 HIGHLIGHT_SUB=3
                 ;;
             *) HIGHLIGHT_SUB=5