Further to this it may be wise to look at how Update-Manager interacts with power management. When Update Manager is active, it prevents the system from entering 'Suspend'.
I can understand this - say the updates being applied could potentially prevent suspend from working. However it actually makes this paper cut much more severe since you can wind up in a state where you started an upgrade, ran out of power and then couldn't even suspend and resume later to complete it!
Further to this it may be wise to look at how Update-Manager interacts with power management. When Update Manager is active, it prevents the system from entering 'Suspend'.
I can understand this - say the updates being applied could potentially prevent suspend from working. However it actually makes this paper cut much more severe since you can wind up in a state where you started an upgrade, ran out of power and then couldn't even suspend and resume later to complete it!