Disabling server option "Network Filesystem" does not work
On some servers, _netdev parameter causes Ubuntu 12.04 to wait mounts indefinetely on boot. It does not seem to matter if the "Network Filesystem" option is selected or not, _netdev parameter is included to the fstab line when a new site is added. Tested this with current ISPConfig version on Ubuntu 12.04.5 and also on 14.04.3.
tail -n 1 /etc/fstab:
/var/log/ispconfig/httpd/test.com /var/www/clients/client3/web476/log none bind,nobootwait,_netdev 0 0
Discussion about the topic at the forum: https://www.howtoforge.com/community/threads/system-do-not-boot-up-after-update.66167/