diff --git a/cmd/incus/main.go b/cmd/incus/main.go
index 6e208890d52..2441864009e 100644
--- a/cmd/incus/main.go
+++ b/cmd/incus/main.go
@@ -206,7 +206,7 @@ For help with any of those, simply call them with --help.`))
 	profileCmd := cmdProfile{global: &globalCmd}
 	app.AddCommand(profileCmd.Command())
 
-	// profile sub-command
+	// project sub-command
 	projectCmd := cmdProject{global: &globalCmd}
 	app.AddCommand(projectCmd.Command())
 
diff --git a/internal/server/instance/drivers/driver_qemu.go b/internal/server/instance/drivers/driver_qemu.go
index da5efaa797b..6a8953dd59d 100644
--- a/internal/server/instance/drivers/driver_qemu.go
+++ b/internal/server/instance/drivers/driver_qemu.go
@@ -3764,11 +3764,11 @@ func (d *qemu) addDriveConfig(qemuDev map[string]string, bootIndexes map[string]
 			aioMode = "threads"
 			cacheMode = "unsafe" // Use host cache, but ignore all sync requests from guest.
 		}
+	}
 
-		// Special case ISO images as cdroms.
-		if driveConf.FSType == "iso9660" {
-			media = "cdrom"
-		}
+	// Special case ISO images as cdroms.
+	if driveConf.FSType == "iso9660" {
+		media = "cdrom"
 	}
 
 	// Check if the user has overridden the bus.
diff --git a/internal/server/storage/backend.go b/internal/server/storage/backend.go
index 26fe5b10462..3c342d6b3bf 100644
--- a/internal/server/storage/backend.go
+++ b/internal/server/storage/backend.go
@@ -6809,6 +6809,11 @@ func (b *backend) CreateCustomVolumeFromISO(projectName string, volName string,
 	// Check whether we are allowed to create volumes.
 	req := api.StorageVolumesPost{
 		Name: volName,
+		StorageVolumePut: api.StorageVolumePut{
+			Config: map[string]string{
+				"size": fmt.Sprintf("%d", size),
+			},
+		},
 	}
 
 	err := b.state.DB.Cluster.Transaction(b.state.ShutdownCtx, func(ctx context.Context, tx *db.ClusterTx) error {
@@ -6824,11 +6829,7 @@ func (b *backend) CreateCustomVolumeFromISO(projectName string, volName string,
 	// Get the volume name on storage.
 	volStorageName := project.StorageVolume(projectName, volName)
 
-	config := map[string]string{
-		"size": fmt.Sprintf("%d", size),
-	}
-
-	vol := b.GetVolume(drivers.VolumeTypeCustom, drivers.ContentTypeISO, volStorageName, config)
+	vol := b.GetVolume(drivers.VolumeTypeCustom, drivers.ContentTypeISO, volStorageName, req.Config)
 
 	volExists, err := b.driver.HasVolume(vol)
 	if err != nil {
@@ -6905,7 +6906,7 @@ func (b *backend) CreateCustomVolumeFromBackup(srcBackup backup.Info, srcData io
 		Name: srcBackup.Name,
 	}
 
-	err := b.state.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
+	err := b.state.DB.Cluster.Transaction(b.state.ShutdownCtx, func(ctx context.Context, tx *db.ClusterTx) error {
 		return project.AllowVolumeCreation(tx, srcBackup.Project, req)
 	})
 	if err != nil {