Prepare an 8GB USB drive labeled Untitled:
Make sure the downloaded installer package is installed in the Applications folder. Quit Terminal and continue the install.In the installer, choose Utilities > Terminal. To change the date from Terminal (which is likely all that will be accessible), follow these steps, which sets it to February 1st 2016 for example:.And set the clock in terminal prior to that date:.If you have installers for 10.9 Mavericks, 10.8 Mountain Lion, and 10.7 Lion check their certificates:.Apple Code Signing Certification AuthorityĥB DA B1 28 8F C1 68 92 FE F5 0C 65 8D B5 4F 1E 2E 19 CF 8F 71 CCī0 B1 73 0E CB C7 FF 45 05 14 2C 49 F1 29 5E 6E DA 6B CA ED 7E 2C Status: signed by a certificate trusted by macOSĢA A4 B9 97 3B 7B A0 7A DD 44 7E E4 DA 8B 53 37 C3 EE 2C 3A 99 19Ģ. Pkgutil -check-signature /Applications/Install\ macOS\ Catalina.app Softwareupdate -fetch-full-installer -full-installer-version 10.13.6
Apple os high sierra full full#
Softwareupdate -fetch-full-installer -full-installer-version 10.15.7 Download the full macOS Catalina installer in Catalina:.