Erwan David <er...@rail.eu.org> writes: > Hello, > > After each boot, the equivalent of apt update is automatically done in > background, through policykit (apt database is locked by > policykitd). So I think there is a timer triggroing this. I'd like to > disable this when my laptop is on expensive link (eg 4G link, or > abroad). So I'd like to disable this timer, but I did not find it. If > someone knws better than me...
If you're using the package unattended-upgrades (I'm not sure it ties to policykitd), then there are instructions in the Debian wiki at https://wiki.debian.org/UnattendedUpgrades#Modifying_download_and_upgrade_schedules_.28on_systemd.29 The timers in question are apt-daily.timer and apt-daily-upgrade.timer. Come to think of it, just running apt update shouldn't generate much traffic.
