Timer doing apt update

[Erwan David <erwan@rail.eu.org>]

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...


--
Erwan David