On 09/09/14 22:18, Tollef Fog Heen wrote: > ]] Carlos Alberto Lopez Perez > >> But if you don't (Is not uncommon to have servers on remote locations >> that are only accessible via ssh) and the machine don't boots properly >> you can find yourself in trouble. > > Then surely you test the upgrade before making it live, using kvm > -snapshot or similar functionality? >
That way of testing is completely unreliable when we are talking about low level stuff (kernel/udev/systemd). I'm talking about physical (bare-metal) servers. Testing the upgrade on a virtual machine does not help since the behavior of the system is hardware dependent, and kvm can't reproduce that. In any case, I'm not worried by the servers I manage. I know the current status quo is to replace sysvinit with systemd on upgrades without telling the user. So I'm ready to pin sysvinit if I think is a wiser choice. What I'm trying to improve is the experience of the Debian users that won't know that, and will upgrade their servers from Wheezy to Jessie. I truly believe that making systemd the default without asking the user to test it first, is going to cause more breakage and angry users than doing it the other way.
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