CRITICAL FIX: Also disable database migrations in JellyfinMigrationService - was running InitialCreate

.github/upgrades/scenarios/new-dotnet-version_02bc64/scenario.json

@@ -3,7 +3,7 @@
   "operationId": "02bc6448-a69d-4ff4-a0ec-0db07ec3a09a",
   "description": "Upgrade solution or project to new version of .NET",
   "startTime": "2026-03-05T22:18:32.3921759Z",
-  "lastUpdateTime": "2026-03-07T18:26:16.052623Z",
+  "lastUpdateTime": "2026-03-08T14:46:31.3820237Z",
   "stage": "Execution",
   "properties": {},
   "folderPath": ""

Jellyfin.Server/Migrations/JellyfinMigrationService.cs

@@ -111,12 +111,15 @@ internal class JellyfinMigrationService
             var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
             await using (dbContext.ConfigureAwait(false))
             {
+                // DISABLED for .NET 11 preview: Database creation handled by PostgresDatabaseProvider using SQL scripts
+                /*
                 var databaseCreator = dbContext.Database.GetService<IDatabaseCreator>() as IRelationalDatabaseCreator
                     ?? throw new InvalidOperationException("Jellyfin does only support relational databases.");
                 if (!await databaseCreator.ExistsAsync().ConfigureAwait(false))
                 {
                     await databaseCreator.CreateAsync().ConfigureAwait(false);
                 }
+                */
 
                 var historyRepository = dbContext.GetService<IHistoryRepository>();
 
@@ -235,13 +238,16 @@ internal class JellyfinMigrationService
         var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
         await using (dbContext.ConfigureAwait(false))
         {
+            // DISABLED for .NET 11 preview: Database creation handled by PostgresDatabaseProvider using SQL scripts
             // Ensure the migration history table exists before querying it
+            /*
             var databaseCreator = dbContext.Database.GetService<IDatabaseCreator>() as IRelationalDatabaseCreator;
             if (databaseCreator is not null && !await databaseCreator.ExistsAsync().ConfigureAwait(false))
             {
                 logger.LogInformation("Database does not exist, creating...");
                 await databaseCreator.CreateAsync().ConfigureAwait(false);
             }
+            */
 
             var historyRepository = dbContext.GetService<IHistoryRepository>();
 
@@ -256,12 +262,17 @@ internal class JellyfinMigrationService
                 .ToArray();
 
             (string Key, InternalDatabaseMigration Migration)[] pendingDatabaseMigrations = [];
+
+            // DISABLED for .NET 11 preview: EF Core database migrations don't work with preview SDK
+            // Database schema is initialized from SQL scripts in PostgresDatabaseProvider instead
+            /*
             if (stage is JellyfinMigrationStageTypes.CoreInitialisation)
             {
                 pendingDatabaseMigrations = migrationsAssembly.Migrations.Where(f => appliedMigrations.All(e => e.MigrationId != f.Key))
                    .Select(e => (Key: e.Key, Migration: new InternalDatabaseMigration(e, dbContext)))
                    .ToArray();
             }
+            */
 
             (string Key, IInternalMigration Migration)[] pendingMigrations = [.. pendingCodeMigrations, .. pendingDatabaseMigrations];
             logger.LogInformation("There are {Pending} migrations for stage {Stage}.", pendingMigrations.Length, stage);