It is used for sending feedback to Apple, such as problems encountered so Apple can fix them before macOS is finalised and released. There is a small app to download and install, the macOS Public Beta Access Utility, and this is like a bare bones email app. Select the macOS tab and click Enroll Device at the top of the page. It provides access to more than just macOS betas, but that is the one we are interested in here. Just use your Apple ID, the same one you use for iCloud, iTunes and other Apple services. Here’s how to set it up.Īpple has a website where beta software is made available at beta/ and you can sign up and sign in. So I now have macOS Sierra running on the internal drive, but have the option to boot from the external drive running macOS High Sierra. I plugged in an external USB disk drive and installed High Sierra on that instead of the MacBook’s internal drive. It would be nice to have spare Macs, but most people do not.

If you two or three iMacs and MacBook, and one isn’t essential, the new OS could be installed directly on the disk. There are two options when installing beta software and one is to use a computer that isn’t important. However, beta software gives you a glimpse of things to come and macOS High Sierra has some exciting features. Although Apple public beta software is usually pretty stable and feature complete, it is still possible for something to go wrong. Install it on a USB drive to leave your Mac running macOS Sierra.īeta software may or may contain bugs, may have unfinished features, may have features not yet included, and included features may be left out of the final version.įor these reasons you might not want to put beta software on an iMac or MacBook that you rely on for everyday work. The MBP was working fine before the hard drive failure.The public beta of macOS High Sierra is available for download and you can test the new and exciting OS update on your Mac. The extended version of the hardware test over internet (Option-D) reports no issues. 2.0 GHz Intel Core i7 (Sandy Bridge) 2635QMīooting in verbose mode (Command-V) shows various messages before the white screen depending on which install version is used.Install using Yosemite on USB thumb drive (from App Store).With a HGST Travelstar 7K1000 (1TB, SATA III) installed: Install using Internet Recovery (Command-Option-R).Install using High Sierra on USB thumb drive (from App Store).Install using the Snow Leopard disc Install using Yosemite on USB thumb drive (from App Store).With a Crucial MX300 SSD (525GB, SATA III) installed: It then sits there running hot until it is powered down. I replaced the hard drive and purchased the Snow Leopard install disc from Apple.ĭuring the install start up, at a certain point the screen goes white and after a bit the fans go to a high speed. My daughter's MBP recently had a hard drive failure.

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