I'm installing koha 3 on Ubuntu. 1. When I enter: sudo a2ensite koha && /etc/init.d/apache2 reload I get: This site is already enabled! open: Permission denied * Reloading web server config apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName httpd not running, trying to start (13)Permission denied: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs open: Permission denied If I stop apache server first, I get: This site is already enabled! open: Permission denied * Reloading web server config apache2 2. When I enter: sudo zebrasrv -f /etc/koha/koha-conf.xml I get: 08:11:18-14/07 [fatal] lock file /var/lock/koha/zebradb/biblios/zebrasrv.pid [No such file or directory] Any suggestions? Paul