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Upgrade a clone of the Macintosh HD with OS X 10.11.6 El Capitan to Now we can create the bootable installer on an appropriate volume: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/volume_to_contain_high_sierra_installer -applicationpath /Applications/"Install macOS High Sierra.app"įor test: Boot into the newly created installer residing on an external HD and app file into /Applications which, in our case, is Install macOS High Sierra.app We now open the sparseimage by DiskImageMounter (via Finder) and drag the installer. Run sudo python /path_to/installinstallmacos.py -catalogurl -raw
MACOS HIGH SIERRA USB INSTALL SIZE DOWNLOAD
Then, copy the download directory off to another machine for future use.
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rw-r-r- 1 user staff 269647 '/macOS Install Data/OSX_10_13_IncompatibleAppList.pkg'
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rwxr-xr-x 1 root wheel 23520 Dec 1 12:37 '/macOS Install Data/Locked Files/cleanup_installer' rw-r-r- 1 root wheel 3557 Jan 8 07:38 '/macOS Install Data/Locked Files/.disk_label_2x' rw-r-r- 1 root wheel 15 Jan 8 07:38 '/macOS Install Data/Locked Files/.disk_ntentDetails' rw-r-r- 1 root wheel 893 Jan 8 07:38 '/macOS Install Data/Locked Files/.disk_label' rw-r-r- 2 user wheel 1584 Dec 4 19:09 '/macOS Install Data/ist' rw-r-r- 1 user staff 4706541399 Dec 4 19:09 '/macOS Install Data/InstallESDDmg.pkg' rw-r-r- 1 user staff 2124 Jan 8 08:39 '/macOS Install Data/index.sproduct' rw-r-r- 1 user staff 478740408 Dec 4 19:04 '/macOS Install Data/BaseSystem.dmg' rw-r-r- 1 user staff 1948 Dec 4 19:03 '/macOS Install Data/BaseSystem.chunklist' rw-r-r- 1 user staff 2613173 Dec 4 19:03 '/macOS Install Data/AppleDiagnostics.dmg' rw-r-r- 1 user staff 328 Dec 4 19:03 '/macOS Install Data/AppleDiagnostics.chunklist' Before doing that, inspect the download directory: sudo find /macOS\ Install\ Data -type f -exec ls -l \ When the download is complete, the installer will prompt for a system restart. After that, it will begin downloading to "/macOS Install Data" on the local machine. Click "Continue", accept the licensing agreement, select the install drive, then the installer will prompt for an admin password. It will launch "Install macOS High Sierra" after the download completes. From the App Store, grab the High Sierra installer.