In the worst case scenario, you might need to reinstall OS X on the external volume. I am using a usb pro mouse but the usb drives don't work. It's rare, but sometimes you can get your unhappy Mac to start up successfully with a Safe Boot, and then restart it normally, and everything returns to hunky-doriness. A $24 part if ordered off the internet. check over here
This is also the only build that can be installed.If none of the identical Software Restore disks will boot this machine, Eww may be right, and something may be wrong with Trying to log back in, I couldn’t get past the Apple logo and spin gear.I let the logo and spin gear go for about 3 hours and nothing. Tip: You can also contact an Authorized Apple Service Provider (AASP) for assistance.Installation starts but does not complete?If you skipped the "Checking your installation DVD or CD" (source disc check mentioned Open Menu Close Menu Apple Shopping Bag Apple Mac iPad iPhone Watch TV Music Support Search apple.com Shopping Bag : CommunitiesSign inPostBrowse discussionsContact SupportSearchCommunitiesContact SupportSign inContentPeopleSearch Support CommunitiesNotebooksMacBook Pro Please enter
I tried holding down the alt option to choose a different drive to startup from but nothing happens, so I put in a Snow Leopard disk and now it starts up Continue to repeat the command until you see the “volume xxx appears to be OK” message.If you don’t see the volume OK message after five or more attempts, your hard drive Step 3: Highlight the volume you want to use by using your mouse or trackpad, or left and right arrow keys on the keyboard.
Content continues below If you do see a display, but can't load OS X or log into your Mac, then you should move on to the next step. See all questions on this article See all questions I have asked Still need help? The same disclaimer applies to holding the left button on a wireless mouse at boot time to open the disc tray. Command R Mac Not Working See the note on "downgrade" installations in Troubleshooting installation and software updates.
Your Mac should start up from the OS X installer CD/DVD media. An Error Occurred While Preparing The Installation System Preferences—To change your default startup disk, use the Startup Disk pane in the System Preferences application. Please bookmark the article for later and consider sharing it on social media and passing it along to your friends and other Mac support folks. Plus Uber and Snapchat are joining forces for your next ride.
Full tutorial: how to choose a startup disk using System Preferences. Also, feel free to submit ideas for future tutorials at [email protected] We like receiving feedback from you guys so share your thoughts with other readers by posting a comment below. Recovery Mode Mac Read more: Resetting the System Management Controller How to fix a Mac that won't start up: Step 8-Target disk mode This step should be taken prior to Step 9 and it How To Restart Macbook Pro To Factory Settings Try connecting the USB drive to another port on the hub.
Step 3: Select the system you would like to use to start your computer up. by Lucy Hattersley | 18 Oct 16 Share Tweet Comments Contents Step 1-Check your Mac turns on Step 2 - Novideo signal (or it's distorted) Step 3-Run Disk Utility in List How to Move the OS X Recovery Disk to a New Location Get the Most From Your Tech With Our Daily Tips Email Address Sign Up There was an error. Are you using wireless keyboard? Mac Recovery Mode Not Working
Other examples: The original 2003 Power Mac G5s require Mac OS 10.2.7 or higher and the 2004 Power Mac G5s require 10.3.4 or higher. Make sure the Mac is off. (If it's not responsive because it's stuck on a grey, blue or white screen, just hold down the Mac's power button for several seconds until ive considered it might be a power issue from what ive read online.. To get some feedback about what's happening, you might choose to start up while holding down Shift, Command and V: that enters both Safe Boot and something called Verbose Mode, which
I unplugged everything from the logic board except for the power supply and video connections and hit the power button. Start Mac In Safe Mode I am see and choose to boot from the USB drive when I hold down Alt during startup, but again it hangs at the grey Apple logo. Mac OS X v10.4 Tiger tip: See Only use Mac OS X v10.4-compatible disk utilities with Mac OS X v10.4 volumes.
That really does not make sense as I have 10 of the same models?!?Thanks,Sean Apr 5, 2009 12:59 AM Helpful (0) Reply options Link to this post by eww, eww Apr I crashes now when ALMOST started up. The disc can be heard spinning up, and the grey Apple logo appears. Command Option R The menus and interfaces you'll see may look slightly different but the functions should be essentially the same.
Is the disk bootable? at all! Release the keys when you see the Apple logo. Swift off your Mac (hold down the power button if necessary).
You can retype the command and hit Return, or press the Up arrow once and then press Return. Follow these steps to use Target Disk Mode: Connect both Macs together using an Apple Thunderbolt cable (it also works with FireWire cables on older Macs).