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--- os:debian:unattendedupgrades [2026/03/18 07:51] – warnaud
+++ os:debian:unattendedupgrades [2026/06/07 11:13] (current) – [7. Minimal checklist] warnaud
@@ Line 223: / Line 223: @@
+===== 8. auto-reboot =====
+In this example, timer for upgrade is at 2:00 AM then reboot if needed is at 4:00AM
+<code bash>
+sudo apt install update-notifier-common -y
+sudo vim /etc/apt/apt.conf.d/51unattended-upgrades-local</code>
+add:
+<code perl>
+Unattended-Upgrade::Automatic-Reboot "true";
+Unattended-Upgrade::Automatic-Reboot-Time "04:00";
+# to avoid reboot while people logged in:
+#Unattended-Upgrade::Automatic-Reboot-WithUsers "false";</code>
+<code bash>
+sudo systemctl enable --now unattended-upgrades</code>
+Set time for upgrades ( before?):
+<code bash>
+sudo systemctl edit apt-daily-upgrade.timer</code>
+<code perl>
+### Editing /etc/systemd/system/apt-daily-upgrade.timer.d/override.conf
+### Anything between here and the comment below will become the contents of the drop-in file
+[Timer]
+OnCalendar=
+OnCalendar=*-*-* 02:00:00
+RandomizedDelaySec=0
+Persistent=true
+</code>
+Relaunch/check:
+<code bash> sudo systemctl restart apt-daily-upgrade.timer
+sudo systemctl status apt-daily-upgrade.timer</code>