Hi,
When I run maintenance/update.php, I get the error "DatabaseBase::factory no viable database extension found for type 'mysql'":
mywiki/maintenance$ php update.php MediaWiki 1.24.1 Updater [1c0b983f] [no req] Exception from line 890 of /opt/lampp/htdocs/mywiki/includes/db/Database.php: DatabaseBase::factory no viable database extension found for type 'mysql' Backtrace: #0 /opt/lampp/htdocs/mywiki/includes/db/LoadBalancer.php(737): DatabaseBase::factory(string, array) #1 /opt/lampp/htdocs/mywiki/includes/db/LoadBalancer.php(610): LoadBalancer->reallyOpenConnection(array, boolean) #2 /opt/lampp/htdocs/mywiki/includes/db/LoadBalancer.php(490): LoadBalancer->openConnection(integer, boolean) #3 /opt/lampp/htdocs/mywiki/includes/GlobalFunctions.php(3632): LoadBalancer->getConnection(integer, array, boolean) #4 /opt/lampp/htdocs/mywiki/maintenance/update.php(136): wfGetDB(integer) #5 /opt/lampp/htdocs/mywiki/maintenance/doMaintenance.php(101): UpdateMediaWiki->execute() #6 /opt/lampp/htdocs/mywiki/maintenance/update.php(206): require_once(string) #7 {main}
I searched in other threads, and didn't understand where the error comes from: my PHP version is 5.5.9-1ubuntu4.9 (so I guess it's ok), and my wiki works hosted on localhost works fine. So, how can I upgrade my MediaWiki version?