diarattconfodo.tk As long as the Mac is compatible with operating system contained on the selected drive, your Mac will continue booting the designated operating system. The Mac Startup Manager works great if you have a number of boot options from which to choose, but your Mac also recognizes a few additional startup keys that direct it to boot immediately from a specific source.
OS X offers a similar mode called Safe Boot. Just as with its Windows counterpart, OS X Safe Boot should be used to help troubleshoot issues that may be caused by corrupt or incompatible software, or to help isolate software issues from hardware failures. Keep holding Shift until you see a gray progress bar appear beneath the Apple boot logo.
Keep holding the keys until your Mac reboots itself and you hear the startup chime a second time. At this point you can release the keys and your Mac should boot as normal. This makes booting your Mac a simple and pleasant experience, but can also hamper troubleshooting efforts. But instead of finishing the boot and bringing you to the default OS X login GUI, it gives you a text terminal which can be used for everything from advanced troubleshooting to hard drive repair.
Target Disk Mode is a very useful feature exclusive to Macs that, in effect, lets you turn your Mac into an unnecessarily complex external drive. Want news and tips from TekRevue delivered directly to your inbox?
Sign up for the TekRevue Weekly Digest using the box below. Safe mode in OS X Leopard v Your screen might also "blink" or "tear" during login when your Mac is started in safe mode. Use safe mode to isolate issues with your Mac You can use safe mode to help resolve issues that might keep your Mac from completely starting up, or to isolate other issues related to your startup disk. What is safe mode? Starting your Mac in safe mode does the following: Start up in safe mode To start up in safe mode: Start or restart your Mac, then immediately press and hold the Shift key.
Join , subscribers and get a daily digest of news, comics, trivia, reviews, and more. You must have internet access to use this function. Just as with its Windows counterpart, OS X Safe Boot should be used to help troubleshoot issues that may be caused by corrupt or incompatible software, or to help isolate software issues from hardware failures. Keep holding Shift until you see a gray progress bar appear beneath the Apple boot logo. Want news and tips from TekRevue delivered directly to your inbox? Get Help Online:
Release the Shift key when you see the login window. To leave safe mode, restart your Mac without pressing any keys during startup.
If an issue doesn't happen in safe mode If an issue doesn't happen when your Mac is started in safe mode, try restarting without pressing any keys. If the issue doesn't come back, it was probably caused by a cache or directory issue with your startup disk, which safe mode fixed.
If your Mac restarts or shuts down in safe mode Your Mac automatically checks the directory of your startup disk when you start up in safe mode. Some features aren't available in safe mode Some features of your Mac aren't available when it's started in safe mode: You can't play movies in DVD Player.
You can't capture video in iMovie and some other video apps. Some audio input or output devices might not work. Wi-Fi networking might be limited or unavailable, depending on the Mac and macOS version you're using. Accessibility features like VoiceOver might not work as expected.