Created
June 10, 2017 02:23
-
-
Save agentsim/00cc38c693e7d0e1b36a2080870d955b to your computer and use it in GitHub Desktop.
Create bootable ISO from HighSierra Installer
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Generate a BaseSystem.dmg with 10.13 Install Packages | |
| hdiutil attach /Applications/Install\ macOS\ 10.13\ Beta.app/Contents/SharedSupport/InstallESD.dmg -noverify -mountpoint /Volumes/highsierra | |
| hdiutil create -o /tmp/HighSierraBase.cdr -size 7316m -layout SPUD -fs HFS+J | |
| hdiutil attach /tmp/HighSierraBase.cdr.dmg -noverify -mountpoint /Volumes/install_build | |
| asr restore -source /Applications/Install\ macOS\ 10.13\ Beta.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase | |
| cp -R /Volumes/highsierra/Packages /Volumes/OS\ X\ Base\ System/System/Installation | |
| hdiutil detach /Volumes/OS\ X\ Base\ System/ | |
| hdiutil detach /Volumes/highsierra/ | |
| mv /tmp/HighSierraBase.cdr.dmg /tmp/BaseSystem.dmg | |
| # Restore the 10.13 Installer's BaseSystem.dmg into file system and place custom BaseSystem.dmg into the root | |
| hdiutil create -o /tmp/HighSierra.cdr -size 8965m -layout SPUD -fs HFS+J | |
| hdiutil attach /tmp/HighSierra.cdr.dmg -noverify -mountpoint /Volumes/install_build | |
| asr restore -source /Applications/Install\ macOS\ 10.13\ Beta.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase | |
| cp /tmp/BaseSystem.dmg /Volumes/OS\ X\ Base\ System | |
| hdiutil detach /Volumes/OS\ X\ Base\ System/ | |
| hdiutil convert /tmp/HighSierra.cdr.dmg -format UDTO -o /tmp/HighSierra.iso | |
| mv /tmp/HighSierra.iso.cdr ~/Desktop/HighSierra.iso | |
| rm /tmp/HighSierra.cdr.dmg |
Generate ISO (New Method) Requires macOS Catalina+:
softwareupdate --fetch-full-installer --full-installer-version 10.13.6
sudo hdiutil create -o /tmp/HighSierra -size 16384m -volname HighSierra -layout SPUD -fs HFS+J
sudo hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/HighSierra
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/HighSierra --nointeraction
hdiutil eject -force /Volumes/Install\ macOS\ High\ Sierra
hdiutil convert /tmp/HighSierra.dmg -format UDTO -o ~/Desktop/HighSierra
mv -v ~/Desktop/HighSierra.cdr ~/Desktop/HighSierra.iso
sudo rm -fv /tmp/HighSierra.dmgYou should end up with a High Sierra ISO File in your Desktop
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Guys if you are using catalina @maxmalta 's solution is the one to go to.