![]() Terminal shows the progress as the bootable installer is created.ħ. When prompted, type Y to confirm that you want to erase the volume, then press Return. Whenprompted,typeyouradministratorpasswordandpressReturnagain.Terminaldoesn'tshowany characters as you type your password.Ħ. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmediaĥ. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallme ![]() Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia. Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallm It isn't necessary to create a bootable installer to install macOS. These advanced steps are primarily for system administrators and others who are familiar with the command line. TypeorpasteoneofthefollowingcommandsinTerminal.Theseassumethattheinstallerisstillinyour Applications folder, and the name of your volume is MyVolume. OpenTerminal,whichisintheUtilitiesfolderofyourApplicationsfolder.ģ. Make sure that it has at least 12GB of available storage.Ģ. Afterdownloadingtheinstaller,connectyourMactotheUSBflashdriveorothervolumethatwillbe used as the bootable installer. Use the 'createinstallmedia' command in Terminalġ. FindtheinstallerinyourApplicationsfolderasasingle”Install”file,suchasInstallmacOSHighSierra. WhenthemacOSinstalleropens,quititwithoutcontinuinginstallation.ģ. Enterprise administrators: Please download from Apple, not a locally hosted software-update server.Ģ. If you're downloading macOS High Sierra, use a Mac with High Sierra, Sierra 10.12.5 or later, or El Capitan 10.11.6. DownloadmacOSfromtheAppStore.Todownload,useaMacthatiscompatiblewiththeversionof macOS you're downloading. When your Mac starts up from a bootable installer, it starts up directly to the macOS installer, and doesn't require an Internet connection to complete the installation.ġ. ![]() (How do I attach a pdf file to this message, so the formatting doesn't get lost.?) How to create a bootable installer for macOS You can use an external drive or secondary partition as a startup disk from which to install the Mac operating system.Ī bootable installer can be useful when you want to install macOS on multiple computers without downloading the installer each time. ![]()
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