sudo softwareupdate --fetch-full-installer --full-installer-version 10.15.6 Says "Installation Failed"

[Alvin777]

Hi MaRumors friends. I need to download the .iso or .dmg or install version of Catarlin 10.15.6 (not the later update) so that I can install it on a partition in my internal drive to run a particular app that runs on just that version.

When I enter in this command in Terminal: "sudo softwareupdate --fetch-full-installer --full-installer-version 10.15.6" I get this after waiting for hours: "Initialization Failed".

Thank you in advance. Stay safe.
God bless, Revelation 21:4

 

[halledise]

macOS Catalina

macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps.

www.techspot.com

tap the 'full install' option.
when catalina has downloaded, format your usb stick as 'UNTITLED''

terminal command…
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/UNTITLED --nointeraction

should work

 

[Alvin777]

Hi, thanks so much. What's the Terminal exact command to tap the 'full install' option?

 

[halledise]

full install option is on the left side panel at the techspot site i pointed you to …