- The Macintosh (mainly Mac since 1998) is a family of personal computers designed, manufactured, and sold by Apple Inc. Since January 1984. The original Macintosh is the first successful mass-market personal computer to have featured a graphical user interface, built-in screen, and mouse. Apple sold the Macintosh alongside its popular Apple II, Apple III, and Apple Lisa families of computers.
- I have tried all that but still not working. I remove the hard drive hook it to another MacBook and I successfully install Mac OS Sierra on it but when I put it back into the MacBook it no longer show the 'Operating system missing' again but still it won't boot no apple logo only showing the prohibited logo and when I try Cmd R it does go to recovery mode only showing the prohibited logo.
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Apr 13, 2021 If the status is Network Offline, make sure that your Mac is connected to the internet, then try again. If the status is Login Failed, check with your email service provider (ESP) to be sure that your account is set up correctly on your Mac. May 30, 2017 If you have a complete OS on the Mac already, boot into it. Fix the date in the Date & Time system preference (Apple menu System Preferences). Reboot using the USB boot disk, and you should be. Question: Q: mac os could not be installed on your computer file system verify or repair failed I tried to install macOS High Sierra in a MacBook Pro (13-inch, Mid 2012) and a MacBook Pro (13-inch, Late 2011).
What Should do Before Upgrading to macOS Big Sur?
![Oregon fail mac os catalina Oregon fail mac os catalina](https://archive.org/serve/msdos_Oregon_Trail_The_1990/Oregon_Trail_The_1990_screenshot.gif)
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.
![Oregon Fail Mac OS Oregon Fail Mac OS](https://pbs.twimg.com/media/DVS7gX3WkAUl9e7.jpg)
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.
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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. Perseverance (gilberto porto) mac os.