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jordigg/bigsur_app_to_iso.sh

Created November 13, 2020 08:23
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MacOS 11 Big Sur App to ISO
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bigsur_app_to_iso.sh
#!/bin/bash
# MacOS Big Sur isntaller to ISO conversion
# Version 11-2020
# Creator: Jordi Garcia
# Github: Jordigg
hdiutil create -o /tmp/bigsur.cdr.dmg -size 14000m -layout SPUD -fs HFS+J
hdiutil attach /tmp/bigsur.cdr.dmg -noverify -mountpoint /Volumes/install_build
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build
hdiutil detach /Volumes/Install\ macOS\ Big\ Sur
mv /tmp/bigsur.cdr.dmg ~/Desktop/InstallSystem.dmg
hdiutil convert ~/Desktop/InstallSystem.dmg -format UDTO -o ~/Desktop/bigsur.iso
mv ~/Desktop/bigsur.iso.cdr ~/Desktop/bigsur.iso
rm ~/Desktop/InstallSystem.dmg
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