I can make bootable USB installers for all OS's El Capitan, High Sierra, Mojave and Catalina but every time I download Sierra and try the createinstallmedia command I get the mount point error. Been going on for four months now.
Macos Sierra Usb Installer V1.6 Download
You can confirm that you have the complete Install macOS High Sierra.app application by getting info on the file, the complete installer should be around 5.2 GB rather than the tiny 19 MB incomplete installer that requires additional downloads.
Do you know of another method to download the complete macOS High Sierra installer application rathe than the tiny incomplete installer that arrives for some users on the Mac App Store? Let us know in the comments!
If you go ahead and run the 19MB installer (/Applications/Install macOS High Sierra), it will download the remaining install files and place them under /macOS Install Data.Simply abort the install when it asks which disk you want to install to.
Good suggestion Louis, but unfortunately that does not always work. I have tried that and it did not succeed, I had to build the installer myself. I wish there was an obvious option to download the full one from App Store directly on the High Sierra page.
After thinking my ElCapitan install was borked for only downloading the 19MB installer, I decided to do a isolation install and clean booted my MacBook Pro with a USB installer of Mountain Lion, Mac OS X 10.8.0 (All I could find laying around).
We are off to the races now! The first thing you will notice is that instead of downloading macOS Mojave Installer inside the App Store it opens Software Update. Software Update will search for the Installer and ask if you are sure you want to download the 6gb Mojave Installer. After clicking download you will get a new prompt for admin credentials to start the download (not to actually install yet). After the download completes you will finally have the latest macOS installer.app.
I showed you how to download the macOS installer through the Mojave Mac App store. The thing is, a better way to download the full installer exists and is called installinstallmacos.py. I was going to explain how to use installinstallmacos.py here but now realize the topic deserves a full article. I did not even get into hardware specific (Forked) builds. As you can see we have a lot to go over, so stay tuned. I will put the link here when complete.
High Sierra is no more available in Mojave App Store. You need to update the article. Also you can confirm if that is the case? Is there another possible method to download High Sierra installer?Thanks
I do not get it. Why not just download the macOS installer, open it, select destination disk and install? That is the easiest way. Am I missing something for which DiskMaker X is better? Please, enlighten me. Thanks. 2ff7e9595c
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