Fatal error: session_start(): Failed to initialize storage module: files (path: ) in /usr/share/phpmyadmin/libraries/session.inc.php on line 81

 Fatal error: session_start(): Failed to initialize storage module: files (path: ) in /usr/share/phpmyadmin/libraries/session.inc.php on line 81

Solution : 1
Add the parameter in the file php.ini

session.save_path = "/tmp"

Restart apache.

Solution : 2
If you are using Debian or Ubuntu and you have tried solution : 1 and  it still shows above error, remove following lines from /etc/phpmyadmin/apache.conf
<IfModule mod_php5.c>
AddType application/x-httpd-php .php
php_flag magic_quotes_gpc Off
php_flag track_vars On
php_flag register_globals Off
php_admin_flag allow_url_fopen Off
php_value include_path .
php_admin_value upload_tmp_dir /var/lib/phpmyadmin/tmp
php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/
</IfModule>

Now restart apache2 & mysql and try again.

phpmyadmin - max upload file size is not changed

phpmyadmin - max upload file size is not changed after making changes in php.ini

If you have changed upload_max_filesize & post_max_size both parameters in php.ini but still it does not show changed maximum upload file size in import section.

You have restarted apache and you have done every thing what was suggested to you but still you are unable to see increased max upload file size.

 Now you are at correct place, just follow this.

Make a file .htaccess and put following text in it.

php_value upload_max_filesize 2048M
php_value post_max_size 2048M

where 2048M is your max upload file size, you can set whatever value you want.

Put this file into phpmyadmin directory.

Now restart apache and mysql and see import page of phpmyadmin. It will show the limit you have put in .htaccess file.

The path of phpmyadmin directory is /usr/share/phpmyadmin. If you are using LAMPP, the path of phpmyadmin directory is /opt/lampp/phpmyadmin

Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included in the server configuration Action 'configtest' failed.

Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed. The Apache error log may have more information....fail!

Ubuntu - Apache2 error

If you are getting this error, it means you have used rewrite engine in your script but rewrite module is disabled right now.

To solve this error, just enable the rewrite module.

If you are using ubuntu - apache2, run this command in terminal

# sudo a2enmod rewrite
# service apache2 restart

Now try again.

If you are getting this error in RHEL/CentOS or in LAMPP, click here.