Header Ads Widget

Responsive Advertisement



How to Create macOS Catalina ISO File

 How to Create macOS Catalina ISO File

Please note these steps need to be performed on a Apple Mac System to generate an iso.


1) Download macOS Catalina From App Store or Apple download

2) Please note once you download it will be in dmg format.

3) Open Terminal in MAC. from the top-right corner open up Spotlight. Type in Terminal and hit Enter.

4) Mount it to your macOS

hdiutil attach /tmp/Catalina.dmg -noverify -mountpoint /Volumes/Catalina

5) Create macOS Catalina Installer

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

6) Unmount Catalina Disk

hdiutil detach /volumes/Install\ macOS\ Catalina

7) Convert the DMG file to an ISO file

hdiutil convert /tmp/Catalina.dmg -format UDTO -o ~/Desktop/Catalina.cdr

8) Rename and Move to Desktop

mv ~/Desktop/Catalina.cdr ~/Desktop/Catalina.iso

Now we can use this iso on any system and install on virtual machines.

Post a Comment


  1. Extraordinary post. I simply found your blog and expected to express that I have genuinely refreshing scrutinizing your blog sections.Huge thankful for the significant data.

    HRDF training

  2. I was looking at a portion of your posts on this site and I consider this site is really enlightening! Keep setting up..