Fixing a problem on wheezy:
- look in text file. See error message. Take action
Fixing a problem in jessie (systemd):
- your main challenge here is in finding the error messages in the first place. This will usually be more complex a task than either the underlying problem or the remedial actions needed to fix it. Often you will just give up and take a series of guesses as to what the problem might be. Your third or fourth guess will be correct and so after trailing a number of solutions, a fix is at hand. Rather like trouble shooting Windows.
Got no axe to grind, just hate bad engineering.