SoftwareUpdater: more precise error on not yet valid certs

[nephele]

When SoftwareUpdater encounters x.509 valid in the future it should report this directly instead of reporting an updating failure or sometihng

I have had some machines with broken CMOS battery, and even beeing aware of this it took me some time to understand why the updates failed :)

[pulkomandy]

Just show a more detailed message, like "Certificate is not yet valid". This should give a good enough clue about the problem, I'd say?

And we should fix our NTP sync code to synchronize properly on boot (or more precisely, when network is up), so this does not happen. Not workaround it everywhere in the code where a date may be used. Because it's not just TLS certificates: HTTP cookies will never expire, for example; the history menu in Web+ will do strange things, etc.

[nephele]

I actually can't change the title of my own tickets, so feel free to change it :)

[Coldfirex]

What does our ntp sync do today?

[nephele]

sync the time via ntp? Not sure what you mean.

[Coldfirex]

Replying to nephele:

sync the time via ntp? Not sure what you mean.

It was in reply to this: "And we should fix our NTP sync code to synchronize properly on boot (or more precisely, when network is up), so this does not happen."