Blue screen of death mac

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Mac OS X Speciality level out of ten: Blue Screen of death I have an old iMac 24" which I am planning to sell. If you don't have a startup option other than your usual startup drive, you can still try to repair the drive by starting your Mac in single-user mode. This is a special startup environment that allows you to work with your Mac using commands that you type into a Terminal-like display. Because single-user mode doesn't require the startup drive to be completely functional, we can use some of the commands to perform drive repairs.

In most cases, repairing the drive will get your Mac working again, but be aware that a drive that has exhibited this type of problem is likely to do it again. Take this as an early warning that your startup drive is having issues, and consider replacing the drive soon.

Macbook Pro A1286 Late 2010 Blue Screen with Black Vertical Lines on Boot up

Be proactive and make sure you have backups or clones of your startup drive available. While repairing the startup drive should solve the blue screen problem for most users, there's another less common drive issue that can cause a Mac to freeze at the blue screen, and that's a startup drive that has its permissions set incorrectly. It can also happen to those of us who like to experiment with Terminal commands, and accidentally change the startup drive's permissions to not allow any access.

Yes, it is possible to set a drive to deny all access. And if you happen to do that to your startup drive, your Mac won't boot. We're going to show you two ways to fix a drive that was set to no access.

Troubleshooting Mac Problems: Stuck at the Blue or Black Screen

The first method assumes you're able to start your Mac using another startup drive or an install DVD. You can use the second method if you don't have access to another startup device. Boot your Mac from another startup device. You can do this by starting your Mac and holding down the option key. A list of available startup devices will display. Select a device and your Mac will use it to finish booting.

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Once your Mac displays the desktop, we're ready to correct the permissions problem. Enter the following command in Terminal. There is no equivalent to a Blue Screen of Death on a Mac. Mine has been running 12 Hours a Day for 7 years with no issues whatsoever. By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

Home Questions Tags Users Unanswered. Ask Question. From the wiki article: In Unix-based operating systems, a similar term is kernel panic.

First Blue Screen of Death on a Mac | Cult of Mac

I thought a kernel panic was much more severe. Is it? Or was that some rumor spread to me by the Windows side of the fence? JavaAndCSharp A kernel panic is by no means a light thing. However, it doesn't mean the end of your mac.