Ubuntu 14.04 upgrade to 16.04

https://wiki.ubuntu.com/XenialXerus/ReleaseNotes

fix download links

https://wiki.hetzner.de/index.php/Hetzner_Aptitude_Mirror#Ubuntu_16.04_Xenial_Xerus

prerequisites

umask 022
mount -o remount,rw,exec /tmp

Issues

MySQL https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1571865 +datadir

UPGRADE 5.6 to 5.7

mkdir /var/run/mysqld
chown -R mysql /var/run/mysqld

mysqld_safe --user=mysql --datadir=/srv/mysql/datadir55/ &
rm /srv/mysql/datadir55/ib_*

mysql_upgrade -u root -p --force -h 127.0.0.1

Apache

libapache2-mod-auth-pam ->libapache2-mod-authnz-pam libapache2-mod-auth-sys-group -> libapache2-mod-authz-unixgroup

mailman

The directory /var/lib/mailman/qfiles contains files. It needs to be empty for the upgrade to work properly.

php7.3

cd /usr/src
   wget [URL]http://www.xmailserver.org/libxdiff-0.22.tar.gz[/URL]
   tar -xzf libxdiff-0.22.tar.gz
   cd libxdiff-0.22
   ./configure
   make
   make install

ToDos

pear upgrade cacti horde roundcube phpmyadmin