Don’t the update buttons work in LockRattler? It’s probably because something is blocking outgoing traffic.
It’s actually even easier to browse the unified log and discover what is going wrong with a reproducible problem. Here’s how.
What to do when your Mac won’t boot into the Desktop and Finder – another summary diagram for diagnosis and suggested solutions.
There’s something wrong with that file, which seems to keep crashing an app. When you can’t put your finger on what’s wrong, it’s likely to be a xattr problem.
How to identify which keychains are opened when your Mac starts up, and any problems when that happens.
Transferring a decision-making guide from a quick flowchart into Tinderbox notes.
Now over 20,000 words in length, content ranges from the plain and simple to detailed analysis of Sierra’s log. Free and ready for you to augment and update.
Pulling together articles here on Macs, and reshaping their content to create a user reference.
A starting point for diagnosing and fixing your Mac problems, with links to key articles here.
The OS X update has just installed, and seems to have broken your Mac. What do you do next?