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What Should do Before Upgrading to macOS Big Sur?

Although the every new macOS upgrade comes with certain exciting features, you need to know if your Mac computer can safely be updated (take Big Sur as an example). If you pay no attention to the details, macOS Big Sur update problems come with you for sure, probably your Mac update stuck or Mac failed update won't boot. Here are some of the things that you should look for before you upgrade to the new update.

  • So if your Mac computer almost ran out of the storage space, your macOS update stuck at the beginning for sure. To make sure how much space your Mac has left, from the Apple menu, select About This Mac More Info Storage. If your Mac update failed definitely owing to the storage space, the only thing you need to do is to free up the space on.
  • There are times when your Mac may misbehave and refuse to boot into OS X. You may get a sad Mac face, an audible beep, or another ailment keeping your Mac from properly booting.
  • Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after 20-30 seconds, during which your Mac might appear to restart If your Mac uses a firmware password, this key combination does nothing or causes your Mac to start up from macOS Recovery.

1.Check compatibility. Big Sur requires any of the following Mac models: iMac; MacBook Pro; MacBook Air; MacBook; Mac Pro; Mac Mini.
2.Check minimum software and hardware requirements. You should have OS X Mountain Lion 10.8 or later. It requires at least 35.5GB of storage space to perform the Big Sur upgrade from macOS Sierra or later, 44.5GB from an earlier release.
3.Backup your Mac. To avoid any possible macOS Big Sur update problems, making a backup of your Mac comes essential. You can backup Mac with Time Backup Machine, iCloud, iTunes, or any other third-party Mac backup tools like MacX MediaTrans.

Instead, for a whopping 17 years, Apple kept hacking on to the Mac OS code base to try to keep up with modern computing needs. Finally, the company shipped the much more modern Mac OS X in 2001. Copland was an internal project to deliver a new OS that would have the modern features needed but retain backward compatibility with the original Mac OS.

How to solve Kernel Panic error

What is Kernel Panic?

Kernel Panic, though sounding scary, is simply an occurrence when your Mac keeps restarting for no obvious reason. Your Mac’s screen goes black, giving you various warning messages like “You need to restart your computer.” Note that the warning message's presence distinguishes Kernel Panic from usual Mac restarts and app crashes. In other words, Kernel Panic is just a Mac version of “blue screen of death” on Windows, but luckily, it can be fixed. So, let’s face the issue head-on.

What happens is your Mac encounters a critical error that it can’t handle, so it automatically shuts down. If it rarely happens enough (like once in a few weeks), that shouldn’t be a trouble. A basic restart should help it. It’s worse when Kernel Panic happens regularly, especially if your Mac crashes right on startup. It might be a sign of damaged hardware, which isn’t funny, given your Mac is almost unusable by that time.

What’s causing Kernel Panic on Mac

There are a million reasons. One user reported he had simply installed the iTunes folder on a different drive than a system one. But in 90% of cases, software conflicts are to blame. Here’s a list of main suspects:

  • Not enough RAM and a lack of hard drive space
  • Outdated drivers or plugins
  • Broken disk permissions
  • Conflicting apps
  • Hardware issues and incompatible peripherals

The first step should be to isolate hardware issues from software-related ones. It may be a combination of both, like when your RAM has turned off, while two apps are conflicting for memory. Anyway, there’s a path laid out by great Mac experts which will now follow immediately.

Software solutions to fix Kernel Panic on Mac

1. Update all your software

Start by launching the App Store app through Spotlight or the Apple menu. Go to the App Store and click Updates to see the latest updates available for your Mac. If some tools haven’t been updated for long, it may well be the root of the Kernel Panic problem.

2. Find which apps are corrupted

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If your Mac keeps crashing on a particular app, you know which one is to blame. That’s what you should do in this case:

  1. Try updating the problem app and then reboot your machine.
  2. If there are no updates or you cannot run them, delete and reinstall the entire app.

Alternatively, use CleanMyMac X's Uninstaller module, which lets your sort all your apps by size, see the unused apps and remove multiple programs at once. To delete software with CleanMymac X:

  1. Download CleanMyMac X — it has a free version.
  2. Install & launch the app.
  3. Go to Uninstaller and check the boxes next to the apps you want to remove.
  4. Press Uninstall to delete them.

If Kernel Panic occurs on random apps, you should look into deep-seated system drivers, specifically the ones that came with peripherals, like video cards, adapters, etc. Make sure you updated everything that deals with graphics, file systems, or networking. And, if it doesn’t help, here are more tricks.

3. Ensure you have enough free space on the drive

Apple recommends reserving at least 20% of free space on your startup drive. Your Mac needs enough room to breathe freely. But when there’s a lack of physical or virtual memory, your Mac’s performance drags down, and Kernel Panic is quite common.

  1. Choose Apple menu > About This Mac.
  2. Switch to the Storage tab.

If your main volume is approaching full capacity, then you ought to make more room for it. The obvious solution would be to delete unused apps or whatever old junk is stored there. You can click Manage and try to free up some space using the built-in Apple tools.

4. Launch Disk Utility

Kernel Panic may happen due to corrupted files or issues with external devices. Fortunately, Apple partially took care of this with their built-in Disk Utility. Launching Disk Utility’s First Aid tool would detect any disk errors, and if it can solve them, you’re lucky again.

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  1. Choose Apple menu > Restart.
  2. Hold down Command + R while you restart the computer.
  3. Go to Disk Utility > First Aid.
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Follow the on-screen commands and expect to see something like “Operation successful” in the report. In the worst-case scenario, you might get “The underlying task reported failure,” which suggests a disk repair failed. At this point, you should start thinking about saving your data and reformatting the drive.

5. Disable startup items

There is a good chance login items are the reason your Mac randomly restarts. With dozens of apps launching on startup, they could be too many for your processor to handle. To troubleshoot Kernel Panic, now your tactics would be to disable these programs and check how your Mac behaves. To disable login items, follow this path:

  1. Go to System Preferences > Users & Groups.
  2. Select your username in the menu.
  3. Switch to the Login Items tab.
  4. Choose a startup item you want to disable and then click the “–” symbol.
  5. Restart your Mac to enable the changes.

Now, it’s time to put on your detective’s hat as we’ll be investigating which login item has been causing Kernel Panic. This time, we’ll go in the opposite direction and will be turning on the login items — one at a time. If your Mac crashes after the particular login app is enabled, congrats, you’ve hit right on the nail. Note that you’ll have to reboot after each step, but finding the root of the problem is intriguing, right?

BTW, if you’re uncomfortable messing with system settings, there’s an easy alternative. CleanMyMac X, the app we’ve mentioned above, has a lot of tools for deep-level Mac maintenance. And there is a feature to disable/enable Login Items and quit hung applications that may affect your Mac performance.

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  1. Download CleanMyMac for free.
  2. Launch it.
  3. Click on the Optimization module.
  4. Go to Login Items.

Disable startup apps one by one and click Perform.

Hardware fixes to Kernel Panic

All the connected hardware could be responsible for the crash fever on your Mac — it happens quite often, actually. So, let’s walk through the hardware solutions to Kernel Panics. And be prepared to restart your Mac a few more times when you follow the next tips.

1. Turn off peripheral devices

Just as we did with startup items, we have to figure out which exactly device is conflicting with your system. Now, you need to plug off everything connected to your Mac: printers, external video cards, network adapters, etc. Restart your Mac and connect one device at a time — if nothing happens, restart again with the new device plugged in. This trial-and-repeat approach should isolate the reason for Kernel Panic. Found which peripheral is corrupted? Well done, now reinstall it and update the software that came with it.

2. Run Apple Diagnostics

Depending on your OS, this built-in tool may be called Apple Diagnostics or Apple Hardware Test. These advanced Apple’s utilities shouldn’t be reserved for geeks only — in fact, they really save lives (okay, Macs).

For Intel processor-based Macs:

  1. Choose Apple menu > Restart.
  2. Press and hold the D key while you restart the computer.

For Apple silicon-based Macs:

  1. Restart your Mac and continue to press and hold the power button as your Mac starts up.
  2. Release the button when startup options appear.
  3. Press Command (⌘)-D on your keyboard.

Apple Diagnostics would launch automatically and test your hardware condition. If any problems are detected, you’ll get a detailed report which is now your official invitation to pay a visit to Apple Support.

The last-ditch solution to Kernel Panic

So, here we are. Nothing of the above helped, and now you are desperately scrolling this on your friend’s computer (as your Mac keeps on crashing, obviously). In no way should you panic. Now, you can try a way that most definitely will save your Mac — reinstall your OS from scratch. It’s like starting a new life — and there’s nothing difficult to it.

If you’re running macOS Big Sur, check out this article on how to clean install macOS Big Sur.

To reinstall macOS Catalina, follow these steps.

If you wish to reinstall macOS Mojave, click here.

Hope these tricks helped you eliminate Kernel Panic. Mac should maintain its reputation as the best computer in the world, so let’s keep it healthy. Share this article if you liked it, and thanks for reading.