The most likely problem is that you downloaded the 19.7mb version of the installer from the app store. This means that you cannot install it onto removable media. This installer from the app store downloads the OS from the internet. If you want to make it work you need to follow the steps on this website (http://osxdaily.com/2017/09/27/download-complete-macos-high-sierra-installer/) this will download the full download version that is not installed through the internet. You will still use the same command from the apple page and it should now work (How to create a bootable installer for macOS - Apple Support) and this personally worked for me and i had this same problem.

Thanks, Tyler

Mac mini introduced in mid 2010 or later iMac introduced in late 2009 or later Mac Pro introduced in mid 2010 or later. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu. If your Mac isn't compatible with macOS High Sierra, the installer will let you know. Download macOS Sierra Installer from the Mac App Store. Once the download completes, it will automatically launch. Quit macOS Sierra Installer app without performing the installation. Take a 16GB or larger USB flash drive to create a bootable Sierra installer. This flash drive is only needed for a clean install on your Mac’s startup drive.

Have you been searching for Mac OS X 10.13 High Sierra in the Mac App Store and you can't find it because only Mojave is available? Watch this video to find. MacOS Sierra is Apple's latest desktop operating system, which succeeds OS X El Capitan and adopts a new name to bring it in line with iOS, watchOS, and tvOS. Back in the day when Apple releases the final version of the macOS Sierra on 20 September 2016 ago. The next day I quickly download and upgrade my Mac OS and do some tests and tweak on it. I notice there is a problem when I try to install some of the apps that not officially approved by Apple.

Hello

Have been following v useful instructions

and other apple sites

Have performed all steps successfully BUT /image-sharing-app-mac.html.

error message

Applications/Install macOS High Sierra.app does not appear to be a valid OS installer application.

appears repeatedly

Wanted a clean install from OSX Build 13F1911 (!!! it used to say 10.9.5)

Wanted clean install to clean up undetectable clutter and used storage. Can install update without clean install.

Have another Mac, newer, to update.

I also have another dead-battery MBP that I would like to revive (but HD dead, so, that may be nothing).

Can you help me fix the Utility commands? Is the OS to old to use disk utility for this function?

With updated system maybe I won't have to use passwords for access 25% of all the time I spend on computer and Apple will recognise this client again

Please advise and many thanks in advance

Install Mac Os Sierra Without App Store

MD

MacBook Pro (15-inch Mid 2012), OSX 10.9.5

How To Install Macos High Sierra

Posted on