While you wait for the download to complete, please consider contributing to support the development of calibre. Alternate download location 2. Alternate download location 1. Version: 5.24.0 Whats new. Calibre works on macOS 10.14 (Mojave) and higher.MacBook Air (2013 and newer). If it has a green dot, then there's no issue, but other colors suggest there's a problem with Apple delivering the update.MacOS Big Sur (11.0) Here is the list of devices compatible with macOS Big Sur : MacBook Pro (Late 2013 and newer). 35,5 GB tilg&230 ngelig lagringsplads (macOS Sierra eller nyere).There should be a section labelled 'macOS Software Update'. Du skal bruge f&248 lgende: OS X 10.9 eller nyere.
In 2010 the University of Otago purchased Mac OS X Snow Leopard (10.6). MacOS Catalina (10.15) If you are using Mojave MacOS on your Mac, chances are you can install MacOS Catalina. Mac Mini (2014 and newer). ![]() The following Macs are compatible:When you have a compatible Mac and the macOS Big Sur download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called 'Install macOS 11'. (Image credit: Apple) How to fix macOS Big Sur install problemsIf your macOS Big Sur problem is in installing the operating system, first make sure you check out our how to download and install macOS Big Sur guide, which will take you through the steps you need to take to safely install the new operating system.First of all, you'll want to make sure you have a Mac that can run macOS Catalina. How to fix "gateway timed out" error when downloading macOS Big SurIn addition, there’s been a lot of complaints regarding the download stopping, and the system throwing up a "gateway timed out" or "bad gateway" error.If you are having this issue, try starting your Mac in Safe Mode (hold down Shift on the keyboard while it boots), then try downloading and installing macOS Big Sur again.There are several possible reasons why the macOS is having issues installing. You can also try Shift + Option + Command + R.If your Mac continues to fail to boot, follow Apple’s instructions on creating an external Mac startup disk.It may be worth restarting your Mac in Safe Mode, then trying to install macOS 11 Big Sur from there to fix the problem. Your Mac or MacBook should now boot into macOS Big Sur successfully.MacOS Big Sur problems during installation isn't as rare as you think, and there are a few ways to fix the issue.If you’re struggling to free up disk space, look out for hidden Time Machine files that may be taking up large amounts of space.Once you have freed up enough space, retry the installation.If macOS Catalina encounters a problem at the end of installation, and then shows an error message, restart your Mac and press Command + Option + R on your keyboard while the Mac boots to start up the recovery system over the Internet. Wait a few more seconds, then turn it back on. Don't worry, the 'Setting Up Your Mac' message means the update is finished, so you won't lose any data or damage anything by restarting your Mac.To do so, press and hold down the power button for a few seconds until the Mac or MacBook turns off. MacOS Big Sur is stuck on 'Setting Up Your Mac'If you have installed macOS Big Sur, but then your Mac gets stuck on the 'Setting Up Your Mac' message, you'll need to force a reboot of your Mac or MacBook. Select ‘Disk boot’ to boot normally, then remove unnecessary files to make space. Sketch 3 for mac reviewPress Enter, then restart your Mac.You will then be asked to create a new admin user account. Don't worry, nothing important is getting deleted. Then enter in the following: rm /var/db/.applesetupdoneThis removes a file, which makes it appear like you're starting Big Sur up for the first time. Now, enter in the following: /sbin/mount -uw /Press Enter on your keyboard. Vs Os For 2013 Book Software Are UpdatedIf you don't see an improvement by then, try restarting your Mac or MacBook.Another thing to check is to make sure that all of your apps and software are updated to the latest version. Is macOS Big Sur running slowly? Here's how to fix itOnce macOS Big Sur is installed on your Mac or MacBook, you may notice that your device is running slower than before.If macOS Big Sur also showed a notification that said "Optimizing Your Mac: Performance and battery life may be affected until completed," then this is normal, as macOS Big Sur is doing things behind the scenes which can initially impact performance.After a day or so, your Mac should be running just as well (if not better) as before. Hopefully, after a few hours the fans should return to normal. This can cause the fans to kick in to help keep the MacBook cool. If it doesn't, force-quit any apps that appear to be taking up a lot of RAM. Check the App Store for any available updates, or the app's website.You can also try restarting your Mac to see if that helps. Select 'Login Items' and then select the apps you want to stop opening at startup and click the small minus sign below the list.It's also worth making sure all of your apps are updated. From the window that appears, click 'Users & Groups'. Keep an eye on the latest versions to see if they have released an update for M1 Macs.You can also open up the Apple menu and select 'System Preferences'. While Apple's Rosetta tool helps run apps for Intel-based Macs on Apple M1 devices running Big Sur, there may still be some performance issues. Again, this is probably because macOS Big Sur is doing some background work to set itself up – and after a few hours or a day, things should have settled down and your battery life should be back to normal.If it isn't then make sure all your apps are updated. How to fix macOS Big Sur battery issuesAs with the performance issues above, you may find that at first your MacBook's battery life is a lot shorter. Running the Repair Disk tool from within Disk Utility may also help, and for more solutions check out our How to speed up your Mac guide. Now repeat the process with /Library/Caches (without the symbol). Open the Finder window, select 'Go' from the top menu and select 'Go to Folder'.In the text box that appears, type /Library/Caches.Remove the data from inside every folder. Its CPU tab lists active processes, with a real-time view of what's going on.To force-quit an item, click it in the Activity Monitor list, click the X at the left of the toolbar, then confirm you want to force-quit.Also delete the cache. Type in '/Library/Preferences'.From there, you should see a file called 'com.apple.Bluetooth.plist '. How to fix macOS Big Sur Bluetooth issuesTo fix issues with Bluetooth devices not working in macOS Big Sur try opening up Finder and then click on 'Go' in the top menu, then 'Go to Folder.'. Close those and see if the battery improves.If it does, then make sure the apps in question have been updated, and check any of their settings to see why they would be taking up so much battery life in macOS Big Sur.For more advice, visit our how to improve your MacBook's battery guide.There's an easy way to fix issues with Bluetooth devices not working in macOS Big Sur. ![]()
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