diff --git a/compos/common/compos_client.rs b/compos/common/compos_client.rs
index af504a1..508423b 100644
--- a/compos/common/compos_client.rs
+++ b/compos/common/compos_client.rs
@@ -85,12 +85,15 @@
             .context("Failed to open config APK idsig file")?;
         let idsig_fd = ParcelFileDescriptor::new(idsig_fd);
 
-        // Console output and the system log output from the VM are redirected to this file.
-        // TODO: Send this to stdout instead? Or specify None?
-        let log_fd = File::create(data_dir.join("vm.log")).context("Failed to create log file")?;
-        let log_fd = ParcelFileDescriptor::new(log_fd);
-
-        let debug_level = if parameters.debug_mode { DebugLevel::FULL } else { DebugLevel::NONE };
+        let (log_fd, debug_level) = if parameters.debug_mode {
+            // Console output and the system log output from the VM are redirected to this file.
+            let log_fd =
+                File::create(data_dir.join("vm.log")).context("Failed to create log file")?;
+            let log_fd = ParcelFileDescriptor::new(log_fd);
+            (Some(log_fd), DebugLevel::FULL)
+        } else {
+            (None, DebugLevel::NONE)
+        };
 
         let config = VirtualMachineConfig::AppConfig(VirtualMachineAppConfig {
             apk: Some(apk_fd),
@@ -102,7 +105,7 @@
         });
 
         let vm = service
-            .createVm(&config, Some(&log_fd), Some(&log_fd))
+            .createVm(&config, log_fd.as_ref(), log_fd.as_ref())
             .context("Failed to create VM")?;
         let vm_state = Arc::new(VmStateMonitor::default());
 
diff --git a/compos/compos_key_cmd/compos_key_cmd.cpp b/compos/compos_key_cmd/compos_key_cmd.cpp
index 2735f2e..3f431da 100644
--- a/compos/compos_key_cmd/compos_key_cmd.cpp
+++ b/compos/compos_key_cmd/compos_key_cmd.cpp
@@ -236,7 +236,7 @@
         appConfig.idsig = std::move(idsigFd);
         appConfig.instanceImage = std::move(instanceFd);
         appConfig.configPath = kConfigFilePath;
-        appConfig.debugLevel = VirtualMachineAppConfig::DebugLevel::NONE;
+        appConfig.debugLevel = VirtualMachineAppConfig::DebugLevel::FULL;
         appConfig.memoryMib = 0; // Use default
 
         LOG(INFO) << "Starting VM";
diff --git a/compos/composd/src/instance_starter.rs b/compos/composd/src/instance_starter.rs
index 3959859..4b3ac1b 100644
--- a/compos/composd/src/instance_starter.rs
+++ b/compos/composd/src/instance_starter.rs
@@ -179,6 +179,7 @@
     ) -> Result<()> {
         let instance_image = fs::OpenOptions::new()
             .create(true)
+            .truncate(true)
             .read(true)
             .write(true)
             .open(&self.instance_image)