Uninstall or install unused kernels

RPi-Distro · May 25, 2024 · 1d7145f · 1d7145f
1 parent 110f69f
commit 1d7145f
Showing 1 changed file with 48 additions and 0 deletions.
diff --git a/raspi-config b/raspi-config
@@ -3244,6 +3244,50 @@ do_usb_current() {
 }
 
 
+do_kernels() {
+
+  DEFAULT=--defaultno
+
+  KERNELS_UNUSED_FILE="/boot/unusedKernels"
+  KERNELS_INITRD_GREP_REGEX="^initrd\.img.+-rpi+"
+  KERNELS_INITRD_DELETE_SED="s/^initrd\.img/linux-image/"
+
+  KERNELS_UNUSED="$(ls -1 /boot | grep -v "$(uname -r)" | grep -E "$KERNELS_INITRD_GREP_REGEX" | sed "$KERNELS_INITRD_DELETE_SED")"
+
+  if [ "$INTERACTIVE" = True ]; then
+
+    if [ -z "$KERNELS_UNUSED" ] && [ -e "$KERNELS_UNUSED_FILE" ]; then
+      whiptail --yesno \
+        "Would you like unused kernels to be reinstalled?" $DEFAULT 20 60 2
+        RET=$?
+        if [ $RET -eq 0 ]; then
+            apt -y install $(cat $KERNELS_UNUSED_FILE)
+            if [ $? -eq 0 ]; then
+                rm "$KERNELS_UNUSED_FILE"
+            else
+                whiptail --msgbox "Kernel reinstallation failed." 20 60 1           
+            fi
+        fi
+    elif [ -n "$KERNELS_UNUSED" ]; then
+      whiptail --yesno \
+        "Would you like unused kernels to be uninstalled?" $DEFAULT 20 60 2
+        RET=$?
+        if [ $RET -eq 0 ]; then
+            echo "$KERNELS_UNUSED" > "$KERNELS_UNUSED_FILE"
+            apt -y remove $KERNELS_UNUSED
+            if [ $? -ne 0 ]; then
+                whiptail --msgbox "Kernel uninstallation failed." 20 60 1
+            fi
+        fi
+    else
+        whiptail --msgbox "No unused kernels found." 20 60 1
+        RET=1
+    fi
+  else
+    RET=$1
+  fi
+}
+
 nonint() {
   "$@"
 }
@@ -3456,14 +3500,17 @@ do_performance_menu() {
   case "$(get_pi_type)" in
     [03]) FUN=$(whiptail --title "Raspberry Pi Software Configuration Tool (raspi-config)" --menu "Performance Options" $WT_HEIGHT $WT_WIDTH $WT_MENU_HEIGHT --cancel-button Back --ok-button Select \
           "P2 Overlay File System" "Enable/disable read-only file system" \
+          "P5 Kernels" "Uninstall/install unused kernels" \
           3>&1 1>&2 2>&3) ;;
     [12]) FUN=$(whiptail --title "Raspberry Pi Software Configuration Tool (raspi-config)" --menu "Performance Options" $WT_HEIGHT $WT_WIDTH $WT_MENU_HEIGHT --cancel-button Back --ok-button Select \
           "P1 Overclock" "Configure CPU overclocking" \
           "P2 Overlay File System" "Enable/disable read-only file system" \
+          "P5 Kernels" "Uninstall/install unused kernels" \
           3>&1 1>&2 2>&3) ;;
     4) FUN=$(whiptail --title "Raspberry Pi Software Configuration Tool (raspi-config)" --menu "Performance Options" $WT_HEIGHT $WT_WIDTH $WT_MENU_HEIGHT --cancel-button Back --ok-button Select \
           "P2 Overlay File System" "Enable/disable read-only file system" \
           "P3 Fan" "Set behaviour of GPIO case fan" \
+          "P5 Kernels" "Uninstall/install unused kernels" \
           3>&1 1>&2 2>&3) ;;
     *) FUN=$(whiptail --title "Raspberry Pi Software Configuration Tool (raspi-config)" --menu "Performance Options" $WT_HEIGHT $WT_WIDTH $WT_MENU_HEIGHT --cancel-button Back --ok-button Select \
           "P2 Overlay File System" "Enable/disable read-only file system" \
@@ -3479,6 +3526,7 @@ do_performance_menu() {
       P2\ *) do_overlayfs ;;
       P3\ *) do_fan ;;
       P4\ *) do_usb_current ;;
+      P5\ *) do_kernels ;;
       *) whiptail --msgbox "Programmer error: unrecognized option" 20 60 1 ;;
     esac || whiptail --msgbox "There was an error running option $FUN" 20 60 1
   fi