This makes sure that libc and ld and 0755 when permissions aren't preserved.

expect_uml

@@ -52,6 +52,8 @@ $uml->command("mount -t hostfs none -o $mount_point /mnt2");
 $uml->command("cp -a /mnt2/* /mnt1");
 if ( $preserve_permissions == 0 ) {
     $uml->command("chown -R 0:0 /mnt1");
+    $uml->command("chmod 0755 /mnt1/lib/libc\.*");
+    $uml->command("chmod 0755 /mnt1/lib/ld-*");
 }
 $uml->command("umount /mnt1; umount /mnt2");   
 $uml->halt();