diff --git a/libemile/emile_second_set_param.c b/libemile/emile_second_set_param.c
index 888e212..72e1405 100644
--- a/libemile/emile_second_set_param.c
+++ b/libemile/emile_second_set_param.c
@@ -13,22 +13,9 @@
 int emile_second_set_param(int fd, char *kernel, char *parameters, char *initrd)
 {
 	int ret;
-	int drive, second, size;
 	char *configuration;
 	off_t offset;
 
-	/* can work on an image or directly on second level file */
-
-	lseek(fd, 0, SEEK_SET);
-	ret = emile_first_get_param(fd, &drive, &second, &size);
-	if (ret == EEMILE_UNKNOWN_FIRST)
-	{
-		/* should be a second level file */
-
-		ret = lseek(fd, 0, SEEK_SET);
-		if (ret == -1)
-			return -1;
-	}
 	offset = lseek(fd, 0, SEEK_CUR);
 
 	configuration = emile_second_get_configuration(fd);
diff --git a/tools/emile-set-cmdline.c b/tools/emile-set-cmdline.c
index 2cd6cd3..ccf6c13 100644
--- a/tools/emile-set-cmdline.c
+++ b/tools/emile-set-cmdline.c
@@ -51,6 +51,7 @@ static int set_cmdline(char* image, char *kernel, char* cmdline, char *ramdisk)
 {
 	int fd;
 	int ret;
+	int drive, second, size;
 
 	fd = open(image, O_RDWR);
 
@@ -60,6 +61,10 @@ static int set_cmdline(char* image, char *kernel, char* cmdline, char *ramdisk)
 		return 2;
 	}
 
+	ret = emile_first_get_param(fd, &drive, &second, &size);
+        if (ret == EEMILE_UNKNOWN_FIRST)
+		return -1;
+
 	ret = emile_second_set_param(fd, kernel, cmdline, ramdisk);
 
 	close(fd);
diff --git a/tools/emile.c b/tools/emile.c
index 8d2001e..2e46b28 100644
--- a/tools/emile.c
+++ b/tools/emile.c
@@ -704,6 +704,7 @@ int main(int argc, char **argv)
 		struct emile_container *container;
 		short unit_id;
 		char map_info[64];
+		int drive, second, size;
 
 		container = emile_second_create_mapfile(&unit_id, map_path, kernel_path);
 		if (container == NULL)
@@ -722,7 +723,10 @@ int main(int argc, char **argv)
 
 		/* set second configuration */
 
-		ret = emile_second_set_param(fd, map_info, append_string, ramdisk_path);
+		ret = emile_first_get_param(fd, &drive, &second, &size);
+		if (ret != EEMILE_UNKNOWN_FIRST)
+			ret = emile_second_set_param(fd, map_info, 
+						append_string, ramdisk_path);
 	}
 
 	close(fd);