In short I want to change the dnf automatic update sheduler to only run once on boot instead of checking every 3 hours or so which is the default.
What location would I need to check to edit this config? Thanks
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How to specify the time for automated system updates (dnf-automatic)? AND/OR https://redstagtechnica.com/2019/07/dnf-automatic-schedule-updates-fedora-and-other-linux-distros/
May be of use for dnf4. I am not sure if you are using dnf (4) or dnf5, there may be differences in file location.
And for DNF5 Enable automatic updates in Fedora and Debian · GitHub
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sudo EDITOR="sed -i -e /^OnUnitInactiveSec=/d" \
systemctl edit dnf5-makecache.timer -l
sudo systemctl restart dnf5-makecache.timer
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Thanks that was the right pointer. It’s location is
/usr/lib/systemd/system/dnf5-makecache.timer
It’s descriptive enough to make the needed changes. I’ve uncommented OnUnitInactive line to block update search during use but allow run once on boot.
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Note that systemctl edit helps ensure that changes are applied correctly and persist across future upgrades.
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As @vgaetera said it is not a good idea to edit the unit files in /usr.
The systemctl edit command is specifically designed to allow you to override only what you need to from and save your change /etc.
Then when you update the system your edit will continue to work when the files in /usr are upgraded.
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Noted