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A script to download macOS install image and create an install disk image
#!/usr/bin/env bash
set -e
while getopts ":h" opts; do
case $opts in
h)
echo "Usage: $0 [-h] name"
echo "name is either mojave, mojave_beta, or catalina_beta"
echo " -h show this help message"
exit 0
;;
esac
done
shift $((OPTIND - 1))
readonly NAME=$1
case $NAME in
mojave)
INSTALL_APP_PATH="/Applications/Install macOS Mojave.app"
MAC_APP_STORE_ID="id1398502828"
;;
mojave_beta)
INSTALL_APP_PATH="/Applications/Install macOS Mojave Beta.app"
MAC_APP_STORE_ID="id1354523149"
REQUIRE_ENROLL=1
;;
catalina_beta)
INSTALL_APP_PATH="/Applications/Install macOS 10.15 Beta.app"
MAC_APP_STORE_ID="id1455661060"
REQUIRE_ENROLL=1
;;
*)
echo "Unknown name '$NAME'" >&2
exit 1
;;
esac
readonly INSTALL_APP_PATH
readonly MAC_APP_STORE_ID
readonly REQUIRE_ENROLL
if [[ -r "$INSTALL_APP_PATH/Contents/SharedSupport/InstallESD.dmg" ]]; then
echo "Found the install app, create an install disk image."
# Mojave install disk image requires about 7GB space.
hdiutil create -o untitled.dmg -size 7G -layout SPUD -fs HFS+J && \
hdiutil attach untitled.dmg
# Create an install disk image.
sudo "$INSTALL_APP_PATH/Contents/Resources/createinstallmedia" \
--volume /Volumes/untitled \
--downloadassets
else
if ((REQUIRE_ENROLL)); then
echo "Enroll developer seed and open Mac App Store."
echo "You can unenroll after downloading the install app by next command:"
echo "sudo /System/Library/PrivateFrameworks/Seeding.framework/Versions/A/Resources/seedutil unenroll"
# Tell Mac App Store that we've enrolled `DeveloperSeed`.
# Actual `enroll` is needed to download a complete install image from Mac App Store.
sudo /System/Library/PrivateFrameworks/Seeding.framework/Versions/A/Resources/seedutil enroll DeveloperSeed
/usr/libexec/PlistBuddy -c "clear dict" -c "add :SeedProgram string DeveloperSeed" /Users/Shared/.SeedEnrollment.plist
fi
# Open Mac App Store to download macOS installer app.
/usr/bin/open "macappstores://itunes.apple.com/app/$MAC_APP_STORE_ID"
echo "Click Get on Mac App Store to download installer app, then run this script again to create an install disk image."
fi
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