Add checks for possible issues

migrations/1758487660_change_dm_to_sddm.sh

@@ -1,7 +1,25 @@
+#!/bin/bash
+set -e
+
+error_exit() {
+  echo -e "\033[31mERROR: Migration failed! Manual intervention required.\033[0m" >&2
+  echo -e "\033[31mDO NOT REBOOT - System may be in inconsistent state until the error is fixed.\033[0m" >&2
+  exit 1
+}
+
+trap error_exit ERR
+
 echo "Change display manager to SDDM"
 
 sudo pacman -S --needed --noconfirm sddm libsecret gnome-keyring
 
+for pkg in sddm libsecret gnome-keyring; do
+  if ! pacman -Q "$pkg" >/dev/null 2>&1; then
+    echo -e "\033[31mError: Package '$pkg' is not installed\033[0m" >&2
+    error_exit
+  fi
+done
+
 sudo mkdir -p /etc/sddm.conf.d
 
 cat <<EOF | sudo tee /etc/sddm.conf.d/autologin.conf
@@ -19,6 +37,29 @@ sudo systemctl enable getty@tty1.service
 sudo systemctl enable sddm.service
 sudo systemctl daemon-reload
 
+# Verify service states
+if systemctl is-enabled omarchy-seamless-login.service >/dev/null 2>&1; then
+  echo -e "\033[31mError: omarchy-seamless-login.service is still enabled\033[0m" >&2
+  error_exit
+fi
+
+if systemctl is-masked plymouth-quit-wait.service >/dev/null 2>&1; then
+  echo -e "\033[31mError: plymouth-quit-wait.service is still masked\033[0m" >&2
+  error_exit
+fi
+
+if ! systemctl is-enabled getty@tty1.service >/dev/null 2>&1; then
+  echo -e "\033[31mError: getty@tty1.service is not enabled\033[0m" >&2
+  error_exit
+fi
+
+if ! systemctl is-enabled sddm.service >/dev/null 2>&1; then
+  echo -e "\033[31mError: sddm.service is not enabled\033[0m" >&2
+  error_exit
+fi
+
 sudo rm -f /usr/local/bin/seamless-login
 sudo rm -f /etc/systemd/system/plymouth-quit.service.d/wait-for-graphical.conf
 sudo rm -f /etc/systemd/system/omarchy-seamless-login.service
+
+echo "Migration completed successfully"