Os X Boot Error Log
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OS X v10.5 and later If a kernel panic occurs, information is added to a log file in the folder /Library/Logs/DiagnosticReports (MacOSXv10.6), or /Library/Logs/PanicReporter (Mac OSXv10.5). The name of each log file in os x startup log this location includes the date and time when the kernel panic was logged. Mac OS
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X 10.2 to 10.4.11 If a kernel panic occurs, information is added to a log file named "panic.log" in the folder/Library/Logs/ .
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Gathering information about the Mac You can gather most of the following information from System Profiler and the About This Mac window when the Mac is operating normally: Computer name or model number, including processor and processor
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speed. For example: iMac, 1.83 GHz Intel Core 2 Duo Information about the hard drive volume that is the startup disk. This should include the bus type (ATA, SCSI, or FireWire), bus number, device number, and volume format. Volume formats include Mac OS Standard (HFS), Mac OS Extended (HFS Plus), and UNIX File System (UFS). The amount of physical memory (RAM) in the computer. Information about any third-party hardware that has been added to the os x verbose boot log computer (which may have been removed during troubleshooting). This includes video cards, PCI or PC cards, additional drives, and any other hardware that did not come with the computer. Document the situation Were you installing Mac OS X, running a third-party application, using the Internet, or restarting after the installation of new hardware such as RAM or an external third-party device, for example? If you know the exact steps to reproduce a kernel panic, be sure to record them. Also, please note whether or not the issue occurs when you start up in Safe Mode. Providing the information to Apple If you record a kernel panic, you can post this information to Apple Discussions. Please include detailed hardware configuration information in your post. You may do this by copying and pasting information from a System Profiler report into your post. Please also include any reproducible steps that lead to this message. Apple cannot respond to all postings. If you photographed the kernel panic message instead of writing it down, please transcribe the text of the message in your Discussions post. If you are experiencing frequent kernel panic situations, consider contacting Apple Support by phone. Learn moreSee also: If “You need to restart your computer” appears. Last Modified: May 27, 2016 Helpful? Yes No Thanks - please tell us how to hel
mode or verbose mode can help you isolate issues related to startup. Start up in single-user mode or verbose modeUse these steps to start up verbose mode mac commands your Mac in single-user mode or verbose mode: Shut down your Mac. mac verbose mode errors Press the power button to start up your Mac. Immediately hold down the following keys: Hold down Command-S for system.log mac single-user mode. Hold down Command-V for verbose mode. You've successfully entered single-user mode or verbose mode when you see white text appear on the screen. If you can't enter single-user mode or https://support.apple.com/en-us/HT201753 verbose modeIf your Mac doesn't progress beyond verbose mode, and doesn't show any messages, press the power button until the computer shuts down. Your Mac can't start up in single-user or verbose mode if the computer owner or administrator has set a firmware password. If FileVault is enabled, you need to unlock the startup disk as part of this process. White text appears briefly https://support.apple.com/en-us/HT201573 before the FileVault login screen is shown. After selecting a user and entering the user’s password, the single-user mode or verbose mode startup process continues. To leave single-user mode or verbose modeTo exit single-user mode typerebootthen press Return. When in single-user mode, the keyboard layout is US English. Verbose mode causes text to display during startup and shutdown. The next time you restart your Mac, Verbose mode is no longer enabled. Last Modified: Mar 22, 2016 Helpful? Yes No Thanks - please tell us how to help you better. Submit Cancel One Moment Please Thanks for your feedback. 46% of people found this helpful. Additional Product Support Information Start a Discussion in Apple Support Communities Ask other users about this article Wait... See all questions on this article See all questions I have asked Still need help? Apple Footer Apple Support How to start up your Mac in single-user or verbose mode More ways to shop: Visit an Apple Store, call 1-800-MY-APPLE, or find a reseller. Copyright © Apple Inc. All rights reserved. Privacy Policy Terms of Use Sales and Refunds Site Map Contact Apple United States (English)
by David Kirk in Apple Mac
If your OS X system is acting flakey, checking out the log files is a great place to start your exploration of what is going wrong. Here http://www.tech-recipes.com/rx/3521/os-x-how-to-view-log-files/ is where to find your log files in OS X. Like most operating systems, OS X has a ton of stuff running that is hidden to the user. Examining the constantly updated log files is a great way to tune and debug your system. The quickest way to get started is by opening the Console application found in OS X 10.5 and later. This can be found through Spotlight or through the os x Applications -> Utilities folder. Tens of hundreds of log files will be visible. Here are a few good ones to start exploring… system.log describes issues regarding your whole system. DNS, networking, and Adium messages frequently appear here for me. mail.log is occasionally useful when trying to get the Mail application straightened out. CrashReporter logs are very important in debugging any crash within a specific application. This is just a few of os x boot the log files that are being updated currently on your system right now. Console is a great tool to view them. Enjoy exploring the inner workings of your system. About David Kirk David Kirk is one of the original founders of tech-recipes and is currently serving as editor-in-chief. Not only has he been crafting tutorials for over ten years, but in his other life he also enjoys taking care of critically ill patients as an ICU physician. View more articles by David Kirk Share this article If this article helped you, please THANK the author by sharing. Your participation helps us to help others. The Conversation Follow the reactions below and share your own thoughts. Anonymous Hi everyone, I'm a danish student with no technical knowledge. For 8 months ago my mac computer was stolen and a few days ago I recived a message from the police that they have found the mac. The police doesn't want to go further in that case (typical danish thing). My question is now: Is it possible to view any kind of log files from the computer to track it to where the thief lives (in case that the computer was connected to internet) etc? Please let me know if it is possible steve it's possi