Troubleshooting a Mac can be a pain, especially if you suffer sudden app crashes or kernel panics frequently. And if you click through an error message accidientally, where does it go? Fortunately, it’s saved in an application called Console. But what do those Console messages mean, and how can you interpret its logs to troubleshoot Mac problems? Read on to find out more.
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- Back in the day, prior to Leopard, there was a console.log file, which contains errors and messages for the current user's account. When Leopard came around, this file was removed, and the system-wide logging system (ASL) replaced it.
- Mac's are excellent tools for accessing serial device TTY ports (to console into PBX's, switches, and routers). You just need a serial to USB adapter, the right driver, and some Terminal software. You can use screen, although Minicom (or a GUI program ) offer more features and functionality.
- Before diving in, realize this is really only for advanced Mac users thoroughly comfortable with the command line environment. It’s also important to point out the hidden login Console / Terminal is completely different from Single User Mode or the Recovery Mode Terminal, which are supported on all Macs and Mac OS versions.
- If your Mac is a laptop. This launches the Console app and specifically opens an errorlog file that lists possible causes of your print failure. The output is far from user-friendly.
What Is the Console?
Console is the application that collects log messages from your computer for user review. All the messages from application crashes, system crashes and everything else get funneled into this one application. It collects errors, faults, warnings and even boring “here’s what I did today” messages from applications, daemons and system processes. If you need to get a look at some logs for troubleshooting, Console is where you start. And it should be your first stop after your computer experiences a random restart, kernel panic or application crash.
You can find the Console application with Applications/Utilities/Console.app. You can also type “Console” into the Spotlight or Launchpad search bars, as see below.
Getting Acquainted with Console
The first time you open Console, you’re going to be drowned in a barrage of real-time system logs. The vast majority of these are totally unimportant unless something goes wrong, and the deluge makes any single message impossible to read among all the status updates and event logs. Of course, it’s not completely useless. Real-time reporting is essential if you want to see what sort of result an action has. For example, if you want to see if Safari generates an error when closing a particular tab, you might open Console and Safari simultaneously, close Safari, and see what messages get logged to Console. Outside of that particular case, though, it’s just TMI.
![Mac Mac](/uploads/1/3/4/2/134216385/527277883.jpg)
Before you start doing any major troubleshooting, let’s quiet things down. You can toggle off Console’s stream of consciousness by clicking the “Now” button in the upper-left. You can also scroll up, which freezes the application at the scrolled input field.
New messages are still getting logged to the Console. You’re just not getting auto-scrolled to them anymore.
We can also wipe the slate clean to see only the newest log messages. To remove currently visible messages from the Console, click the “Clear” button in the menu bar. This will let you focus on just what’s happening now. The view will be reloaded soon after you click Clear, and new log messages will begin to appear.
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The thing is, we probably don’t care about what Finder had for lunch or how Safari’s kids are doing. We just want to see the drama, just the problems. Click “Errors and Faults” below the menu bar to hide everything that isn’t a message about a problem.
This automatically opens a pre-saved search that filters based on message type. If you want, you can create your own searches by manipulating the search bar.
If you’ve made a custom search you like and want to save it to the filter bar, click the “Save” button.
Interpreting Console Messages to Troubleshoot Mac Problems
Now that we’re only looking at the problems, let’s figure out what the system is trying to tell us.
The messages are sorted by severity based on the color of their associated dot, found under the “Type” column. Faults, the most serious console message, get red dots. Errors, which are more like warning messages, get yellow dots.
The “Process” column contains the name of the application or system process that generate the error messages. Some of these names will be familiar, but others will be cryptic mysteries that you’ll need to Google. Note that the most serious faults are typically spawned by the “kernel” process, which runs the core of macOS.
To reveal a little more detail about a particular message, click on it and check out the info pane at the bottom of the window.
Evaluating Individual Faults and Errors
The info window returns a lot of cryptic information for non-expert users. On the top we see the process that spawned the error message, along with the specific sub-process in parentheses. We also see the type of error and the time and date that it was logged to the system.
C# Console App
The meat of the message is at the bottom, under the horizontal rule. This is the actual message that the kernal logged to the system, trying to explain what went wrong. It typically starts by saying what particular part of a program spawned the message before describing what the issue is.
In this case I can see that IOReturn is complaining that it can’t unlock the IOAccelSurface2 because the surface is not locked. It’s not important if you don’t know what this means right way, but it often gives you a unique phrase to search. Googling this error leads me to believe it’s a bug with TeamViewer, but its not critically important.
It can be helpful to take a screenshot of error messages for later, or for sharing on troubleshooting forums. If you see that an particular application is generating lots of faults or errors, try updating to the most recent version.
When Should I Check the Console?
Console is most useful when your system has just experienced an error. Maybe an application failed to open and you received a System Report window about it. Or maybe you just rebooted following a kernel panic. Inspecting the Console will help you dig up the cause of the problem and take the necessary steps to fix it.
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Console User Guide
Console compiles various reports that provide general diagnostic data, as well as details about your computer’s operating system and apps. You can access the following reports from the sidebar:
- Crash Reports: System and user reports about apps or processes that crash. Crash report names have a crash extension.Super File Shredder keeps its place under top 10 best hard drive wipe software. Wipe in a partition and complete drivePricingAs already discussed, PCDiskEraser is completely free to use and you can download the latest version from the. https://wsuezkq.weebly.com/best-mac-hard-drive-cleaner-app.html. The reason is its advanced security tool for Windows that removes all the data by overwriting it many times.
- Spin Reports: System and user reports with details about app or process issues. Spin report names have a spin extension.
- Log Reports: System and user reports with information about events that occur when the system or specific apps are processing. Log report names have an extension such as log, _log or its.
- Diagnostic Reports: System and user reports with information about hardware resources, system response times and more. Diagnostic report names have an extension such as diag or dpsub.
- Mac Analytics Data: Contents of the Message Tracer Store data found at /var/log/DiagnosticMessages.
- system.log: Contents of the legacy system log file at /private/var/log/system.log.
User reports are from apps used by the current user. System reports are from operating system components that affect all users. If you are logged in as an administrator user, you can view all reports. If you are not logged in as an administrator, you can view only user reports.
In the Console app on your Mac, do any of the following:
Ipad Console App
- View a report: Select a report category under Reports in the sidebar (for example, Log Reports), then select a report at the top of the window. The report details appear below.While viewing a report, you can do any of the following:
- Open the report in a separate window: Double-click the report.
- Open the report in the Finder: Choose File > Reveal in Finder.
- Move a report to the Trash: Choose File > Move to Trash.
- Sort reports: Move the pointer over the column name you want to sort by, then click it. All the rows in the report list are reordered according to the column you sorted. Click the column name again to reverse the sort order.How to desinstall nielsen app from my mac. At Nielsen, we're all about understanding computer and mobile trends - the types of applicationsyou use, the content you view and listen to, as well as the websites you visit on your computer, phone, tablet or other registered mobile device. Active members earn points for participating with one or more devices, up to £62 per year!Please see the Rewards section for more details. It doesn't matter if you use your mobile device a lot ora little or how you use it, the information on your usage is important to us and a valuable contribution toour research! Your everyday activities as a panelist will help us understandhow people use their computers and mobile devices. Plus, you will be rewarded for your participation!
- Search for text within a report: Double-click the report, then enter the text in the search field.As you begin typing, only results matching that text appear.
Mac Console Commands
See alsoView log messages in Console on MacView activities in Console on MacShare log messages, activities or reports in Console on MacBrowse the log archive in Console on MacShare analytics information from your Mac with Apple