![]() MacOS High Sierra 10.13.6 where this clone resides on another external HD īoth HDs connected to the machine via a USB 3 hub. 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 Fetch installinstallmacos.py script from. ![]() So I decided to trust Greg Neagle's approach and to apply his script to solve the problem. To be honest, I was tired of trying out one workaround after the other that bright people worked out in order to overcome this issue and that, for better or for worse, fixed my issue. This issue was reported in several places, so for example in the current thread and also here macOS High Sierra media installer. When I tried to create a bootable installer for High Sierra I came across the problem that the installer downloaded from the App Store proved to be a "stub" version. Then, copy the download directory off to another machine for future use. rw-r-r- 1 user staff 269647 '/macOS Install Data/OSX_10_13_IncompatibleAppList.pkg' 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. You can now quit Terminal and eject the volume.From the App Store, grab the High Sierra installer. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Ventura.After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume.Terminal shows the progress as the volume is erased. When prompted, type Y to confirm that you want to erase the volume, then press Return.Terminal doesn't show any characters as you type. When prompted, type your administrator password.If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command.Open Terminal, which is in the Utilities folder of your Applications folder.Plug in the USB flash drive or other volume that you're using for the bootable installer. ![]()
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