Add script to create bootable install ISO

philipnewcomer · Oct 10, 2017 · 5eb1527 · 5eb1527
1 parent 484f13d
commit 5eb1527
Showing 1 changed file with 24 additions and 0 deletions.
diff --git a/create_install_iso.sh b/create_install_iso.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+set -e
+
+hdiutil attach /Applications/Install\ macOS\ High\ Sierra.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\ High\ Sierra.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase
+rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages
+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
+
+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\ High\ Sierra.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/
+rm /tmp/BaseSystem.dmg
+
+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