add len check back

Signed-off-by: Justin Alvarez <[email protected]>

Author: pendo324

pkg/start/start.go

@@ -143,12 +143,14 @@ func Start(ctx context.Context, inst *store.Instance) error {
 	if nerdctlArchiveCache != "" {
 		args = append(args, "--nerdctl-archive", nerdctlArchiveCache)
 	}
-	location, errs := downloadAndCacheArchiveForArch(y.ExtraArchives, *y.Arch, "extrArchive")
-	if location == "" {
-		return fmt.Errorf("failed to download the extraArchive archive, attempted %d candidates, errors=%v",
-			len(y.ExtraArchives), errs)
+	if len(y.ExtraArchives) > 0 {
+		location, errs := downloadAndCacheArchiveForArch(y.ExtraArchives, *y.Arch, "extrArchive")
+		if location == "" {
+			return fmt.Errorf("failed to download the extraArchive archive, attempted %d candidates, errors=%v",
+				len(y.ExtraArchives), errs)
+		}
+		args = append(args, "--extra-archive", location)
 	}
-	args = append(args, "--extra-archive", location)
 
 	args = append(args, inst.Name)
 	haCmd := exec.CommandContext(ctx, self, args...)