InstallAssistant, a shell script to get the "InstallAssistant.pkg" and build "Install macOS XXX.app" for macOS you can even use it in the Recovery mode
installassistant -v -c https://swscan.apple.com/content/catalogs/others/index-15seed-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gzlist available versions
sh -c "$(curl -fsSL "https://raw.githubusercontent.com/sinojerk/installassistant/main/installassistant")"list and with InstallAssistant.pkg url
sh -c "$(curl -fsSL "https://raw.githubusercontent.com/sinojerk/installassistant/main/installassistant")" -- -vinstallassistant only find urls for you, you can download the "InstallAssistant.pkg" use your favorite tool after your "InstallAssistant.pkg" downloaded
sh -c "$(curl -fsSL "https://raw.githubusercontent.com/sinojerk/installassistant/main/installassistant")" -- build <path to your InstallAssistant.pkg>will build the "Install macOS XXX.app" for you
setup install macOS app in memery on Recovery Mode (for large memery device such as m1 pro/max/ultra at least 32Gib)
- reset your mac if needed, must go first(because your mac will reboot)
- setup a ramdisk maybe 16GiB size
diskutil eraseDisk JHFS+ IA `hdiutil attach -nomount ram://$((16*1024*2048))`cd /Volumes/IAthen get a macOS version, download it, build toinstall macOS <xxx>.appseehow to usesection- run install macOS app (check the real path for
install macOS <xxx>.app)
("/Volumes/IA/Applications/install macOS <xxx>.app/Contents/MacOS/InstallAssistant_springboard" &)want file Integrity check for InstallAssistant.pkg after download, see sinojerk/cnkl
need to download InstallAssistant.pkg.integrityDataV1 file at the same time, the url is InstallAssistant.pkg file url by append .integrityDataV1