Log errornya sewaktu upgrade PHP5 menggunakan apt-get
Setting up php5-fpm (5.6.17+dfsg-0+deb8u1) ... Job for php5-fpm.service failed. See 'systemctl status php5-fpm.service' and 'journalctl -xn' for details. invoke-rc.d: initscript php5-fpm, action "start" failed. dpkg: error processing package php5-fpm (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of php5: php5 depends on libapache2-mod-php5 (>= 5.6.17+dfsg-0+deb8u1~) | libapache2-mod-php5filter (>= 5.6.17+dfsg-0+deb8u1~) | php5-cgi (>= 5.6.17+dfsg-0+deb8u1~) | php5-fpm$ Package libapache2-mod-php5 is not installed. Package libapache2-mod-php5filter is not installed. Package php5-cgi is not installed. Package php5-fpm is not configured yet. dpkg: error processing package php5 (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: php5-fpm php5
Solusi masalah diatas, pertama hapus php5-fpm, lalu install ulang
apt-get remove php5-fpm apt-get install php5-fpm php5