Unattended Upgrades

** Update 11/10/17 [Thanks James] **

It looks like there is an issue if you had dnf-automatic in Fedora 25 or earlier as Fedora 26 jumps from DNF 1.x to 2.x, so please read THIS post before you install it in 25 and upgrade.

Blatantly stolen from here for my records – Thanks Iain R. Learmonth

Debian

Make sure that unattended-upgrades is installed and then enable the installation of updates (as root):

apt install unattended-upgrades
dpkg-reconfigure -plow unattended-upgrades

Fedora 22 or later

Beginning with Fedora 22, you can enable automatic updates via:

dnf install dnf-automatic

In /etc/dnf/automatic.conf set:

apply_updates = yes

Now enable and start automatic updates via:

systemctl enable dnf-automatic.timer
systemctl start dnf-automatic.timer

(Thanks to Enrico Zini I know all about these timer units in systemd now.)

RHEL or CentOS

For CentOS, RHEL, and older versions of Fedora, the yum-cron package is the preferred approach:

yum install yum-cron

In /etc/yum/yum-cron.conf set:

apply_updates = yes

Enable and start automatic updates via:

systemctl start yum-cron.service

 

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