its done works perfect here is the code
<?php
/**
* The default template for displaying content
*
* @package WordPress
* @subpackage Twenty_Eleven
* @since Twenty Eleven 1.0
*/
?>
<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
<header class="entry-header">
<?php if ( is_sticky() ) : ?>
<hgroup>
<h2 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h2>
<h3 class="entry-format"><?php _e( 'Featured', 'twentyeleven' ); ?></h3>
</hgroup>
<?php else : ?>
<h1 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h1>
<?php endif; ?>
<?php if ( 'post' == get_post_type() ) : ?>
<div class="entry-meta">
<?php twentyeleven_posted_on(); ?>
</div><!-- .entry-meta -->
<?php endif; ?>
<?php if ( comments_open() && ! post_password_required() ) : ?>
<div class="comments-link">
<?php comments_popup_link( '<span class="leave-reply">' . __( 'Reply', 'twentyeleven' ) . '</span>', _x( '1', 'comments number', 'twentyeleven' ), _x( '%', 'comments number', 'twentyeleven' ) ); ?>
</div>
<?php endif; ?>
</header><!-- .entry-header -->
<?php if ( is_search() ) : // Only display Excerpts for Search ?>
<div class="entry-summary">
<?php the_excerpt(); ?>
</div><!-- .entry-summary -->
<?php else : ?>
<div class="entry-content">
<?php the_excerpt( __( 'Continue reading <span class="meta-nav">→</span>', 'twentyeleven' ) ); ?>
<?php wp_link_pages( array( 'before' => '<div class="page-link"><span>' . __( 'Pages:', 'twentyeleven' ) . '</span>', 'after' => '</div>' ) ); ?>
</div><!-- .entry-content -->
<?php endif; ?>
<footer class="entry-meta">
<?php $show_sep = false; ?>
<?php if ( 'post' == get_post_type() ) : // Hide category and tag text for pages on Search ?>
<?php
/* translators: used between list items, there is a space after the comma */
$categories_list = get_the_category_list( __( ', ', 'twentyeleven' ) );
if ( $categories_list ):
?>
<span class="cat-links">
<?php printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list );
$show_sep = true; ?>
</span>
<?php endif; // End if categories ?>
<?php
/* translators: used between list items, there is a space after the comma */
$tags_list = get_the_tag_list( '', __( ', ', 'twentyeleven' ) );
if ( $tags_list ):
if ( $show_sep ) : ?>
<span class="sep"> | </span>
<?php endif; // End if $show_sep ?>
<span class="tag-links">
<?php printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list );
$show_sep = true; ?>
</span>
<?php endif; // End if $tags_list ?>
<?php endif; // End if 'post' == get_post_type() ?>
<?php if ( comments_open() ) : ?>
<?php if ( $show_sep ) : ?>
<span class="sep"> | </span>
<?php endif; // End if $show_sep ?>
<span class="comments-link"><?php comments_popup_link( '<span class="leave-reply">' . __( 'Leave a reply', 'twentyeleven' ) . '</span>', __( '<b>1</b> Reply', 'twentyeleven' ), __( '<b>%</b> Replies', 'twentyeleven' ) ); ?></span>
<?php endif; // End if comments_open() ?>
<?php edit_post_link( __( 'Edit', 'twentyeleven' ), '<span class="edit-link">', '</span>' ); ?>
</footer><!-- #entry-meta -->
</article><!-- #post-<?php the_ID(); ?> -->
its correct look on line 41 not 42 just change “content” with “excerpt” the goal was to get all existing posts to fall in line with the posts after the change and this worked perfect in the 2011 theme with 3.4.1 wp