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Yes, but I am not going to move the domain name for now. I just want to create a copy of the current production site under a subdirectory (with the same data).

I then want to work on the new instance (change theme etc.) for a while and, when ready, direct/dorward the current domain to the subdirectory (with the new instance)

It seems the new install (installed in the subdirectory of a main install, yourdomain.com/newinstance) created a new set of tables in the same db (as the main site).

The new tables have the new prefix set in the wp-config.php file ($table_prefix). Therefore, I assume, there is no data in the tables – it’s a new table set.

I probably want to use the same tables (populate the data) in the new instance as in the current main instance. Would that be possible by just changing $table_prefix to the same (wp_) as in the main instance?

Yes I copied (not moved) .htaccess and index.php from the subfolder and put them under root.

In index.php I edited line 17:
require('./wp-blog-header.php');
to
require('./abc/wp-blog-header.php');

So it should direct to the subfolder.

I still get the following errors:
Warning: require_once(/home/content/32/5463532/html/wp-load.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/32/5463532/html/wp-blog-header.php on line 12

Fatal error: require_once() [function.require]: Failed opening required '/home/content/32/5463532/html/wp-load.php' (include_path='.:/usr/local/php5/lib/php') in /home/content/32/5463532/html/wp-blog-header.php on line 12

Do I need to do something on the database or elsewhere? please help.

I added the subdirectory to line 17 in index.php

require(‘./ABC/wp-blog-header.php’);

However, now I receive the following error:

Warning: require_once(/home/content/32/5463532/html/wp-load.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/32/5463532/html/wp-blog-header.php on line 12

Fatal error: require_once() [function.require]: Failed opening required ‘/home/content/32/5463532/html/wp-load.php’ (include_path=’.:/usr/local/php5/lib/php’) in /home/content/32/5463532/html/wp-blog-header.php on line 1

2

I managed to figure out the problem. i needed to download a new wp-config-sample.php (version 3.5.1) and edit it accordingly, save as wp-config.php and upload. It is now working correctly.

Thanks, I will install this plugin. Still find it strange that the default editor cannot handle tables.

Could it be somewhere in this code (index.php) I need to make changes?

<div id="content">
	<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
	<div class="post">

	<h2 class="posttitle"><a href="<?php the_permalink() ?>" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h2>

Thanks,
Olafur

solved by using is_front_page() instead of is_home()