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What caused that kernel panic? How to use the log in diagnosis

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Step through how to work out when, how and why a kernel panic occurred in the unified log, using Ulbow.

June 17, 2020 Macs, Technology

Did your Mac crash, freeze or panic?

How to tell apart unexpected quits, WindowServer crashes, kernel panics, and more – and what to do about them.

June 6, 2020 Macs, Technology

Did that Mac just restart itself? About kernel panics

What they are, how they’ve changed, how to work out what went wrong, and how to deal with them. No Mac should ever experience a single panic.

November 27, 2019 Macs, Technology

Kickstarting and tearing down with launchctl

What’s the quickest way to tear down all user apps and services? Or to force a restart? The answer is in the command tool launchctl.

August 27, 2019 Macs, Technology

Should you use shutdown or reboot in the command line?

Is shutdown -r now better than reboot? What advantages does Finder’s Restart have over them? The answers are in these logs.

May 14, 2018 Macs, Technology

The Joy of ssh: remote control and quick copying

When your Mac seems unresponsive and its GUI frozen, you don’t have to reach for the Power button. Try connecting using ssh: it’s actually very simple and valuable.

May 10, 2018 Macs, Technology

Pick your Panacea: how to select a generic fix

When should you reset your SMC and NVRAM, repair permissions, install a Combo update, or re-install the whole of macOS?

March 9, 2018 Macs, Technology

Kernel panics, and how to know when they occur

From 10.8 onwards, you will not see the classic grey display, but your Mac will spontaneously restart or shut down. Here are the details, and what to do next.

April 13, 2017 Macs, Technology

Sierra Log Tutorial: Exploring a startup

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How to explore what happens during startup, and hone in on problems. The second tutorial, medium level.

November 11, 2016 Macs, Technology

Sierra Log Tutorial: Getting started, Time Machine errors, and restarts

A basic tutorial showing how to get useful information from Sierra’s new logs, using LogLogger5.

November 8, 2016 Macs, Technology

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