From e4a484c061351f84f223342c4888f38d5f27a271 Mon Sep 17 00:00:00 2001
From: theofficialgman <28281419+theofficialgman@users.noreply.github.com>
Date: Sat, 18 Nov 2023 12:00:53 -0500
Subject: [PATCH] MuseScore: add pagesize check

closes https://github.com/Botspot/pi-apps/issues/2480
---
 apps/MuseScore/install | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/apps/MuseScore/install b/apps/MuseScore/install
index 0053ffb041..68bf3e0917 100755
--- a/apps/MuseScore/install
+++ b/apps/MuseScore/install
@@ -8,6 +8,28 @@ else
   error "Failed to detect OS CPU architecture! Something is very wrong."
 fi
 
+PAGE_SIZE="$(getconf PAGE_SIZE)"
+if [[ "$PAGE_SIZE" == "16384" ]]; then
+  #switch to 4K pagesize kernel
+  if [ -f /boot/config.txt ]; then
+    text="Raspberry Pi 5 PiOS images ship by default with a 16K PageSize Linux Kernel.
+This kernel causes incompatibilities with some software including MuseScore https://github.com/raspberrypi/bookworm-feedback/issues/107
+
+Would you like to automatically switch to a 4K PageSize Linux Kernel?"
+    userinput_func "$text" "No, keep 16K PageSize Kernel and Exit" "Yes, switch to 4K PageSize Kernel"
+    if [ "$output" == "No, keep 16K PageSize Kernel and Exit" ]; then
+      error "User error: Your current running kernel is built with 16K PageSize and is incompatible with MuseScore. You must switch to a 4K PageSize kernel (and chose to not do so automatically) before installing MuseScore."
+    fi
+    echo "" | sudo tee --append /boot/config.txt >/dev/null
+    echo "[pi5]" | sudo tee --append /boot/config.txt >/dev/null
+    echo "kernel=kernel8.img" | sudo tee --append /boot/config.txt >/dev/null
+    echo -e "The 4K PageSize Kernel has been enabled by adding 'kernel=kernel8.img' to /boot/config.txt\nPlease reboot now and install the MuseScore app again."
+    sleep infinity
+  else
+    error "User error (reporting allowed): Your current running kernel is built with 16K PageSize and is incompatible with MuseScore. Changing kernels automatically cannot be done since no /boot/config.txt file was found."
+  fi
+fi
+
 if package_installed musescore ;then
   status "First removing musescore package with APT..."
   sudo apt purge musescore -y --autoremove || exit 1