BuddyPress.org

okay.. for future BP installers if you get 500 error after mu install and your host doesn’t like your .htaccess file

the default htaccess.dist looks like this

RewriteEngine On

RewriteBase BASE/



#uploaded files

RewriteRule ^(.*/)?files/$ index.php [L]

RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*

RewriteRule ^(.*/)?files/(.*) wp-content/blogs.php?file=$2 [L]



# add a trailing slash to /wp-admin

RewriteCond %{REQUEST_URI} ^.*/wp-admin$

RewriteRule ^(.+)$ $1/ [R=301,L]



RewriteCond %{REQUEST_FILENAME} -f [OR]

RewriteCond %{REQUEST_FILENAME} -d

RewriteRule . - [L]

RewriteRule  ^([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]

RewriteRule  ^([_0-9a-zA-Z-]+/)?(.*.php)$ $2 [L]

RewriteRule . index.php [L]



<IfModule mod_security.c>

<Files async-upload.php>

SecFilterEngine Off

SecFilterScanPOST Off

</Files>

</IfModule>

But…

notice line #2

RewriteBase BASE/

this should read

RewriteBase /

so if you get 500 error.. this could be the culprit – works for me

source – https://mu.wordpress.org/forums/topic.php?id=11076