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How do I make a macOS Sierra installer bootable?
The Easy Option: Disk Creator
- Download the macOS Sierra installer and Disk Creator.
- Insert an 8GB (or larger) flash drive.
- Open Disc Creator and click the “Select the OS X Installer” button.
- Find the Sierra installer file.
- Select your flash drive from the drop-down menu.
- Click “Create Installer.”
How do I download the full macOS High Sierra installer app?
How to Download the Full “Install macOS High Sierra. app” Application
- Go to dosdude1.com here and download the High Sierra patcher application*
- Launch “MacOS High Sierra Patcher” and ignore everything about patching, instead pull down the “Tools” menu and choose “Download MacOS High Sierra”
Where is the high Sierra installer?
The High Sierra installer app will be in your Applications folder, so you can go there and launch it later to upgrade your Mac to the new operating system. If you already installed High Sierra, you won’t find the installer app in your Applications folder. You also won’t find it in the App Store app under Purchased.
Is there an installer for macOS High Sierra?
‘Install macOS High Sierra.app does not appear to be a valid OS installer application.’ when trying to create a bootable USB with terminal from the incomplete installer or from the installer downloaded using the High Sierra patcher application suggested in the above article. Hope this helps.
Do you need to run APFS installer on Mac?
You should run the installer on your system, as it is most likely going to apply a firmware update to your Mac so that it is capable of booting an APFS file system. Then I believe it will download the full installer. As aways, when the installer starts up, you can “Quit” and then you can create your bootable installer.
Where do I put the install files on my Mac?
Choose the install disk and click ‘install’ (it won’t actually install yet!). It will download the remaining install files and place them under /macOS Install Data (i.e. look for the folder in the root of your hard drive ‘Macintosh HD’).
Why is my SSD not booting High Sierra?
The Stub is 19MB and is a firmware check. If your firmware does not know how to boot the new APFS file system, then the Stub will arrange to update the firmware before allowing your get the full installer, and possibly brick your Mac, after installing High Sierra and your SSD boot disk is converted to APFS.