Want to highlight a helpful answer? Upvote!

Did someone help you, or did an answer or User Tip resolve your issue? Upvote by selecting the upvote arrow. Your feedback helps others! Learn more about when to upvote >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Create USB installer from an El Capitan DMG file

Its been some time since i meddled to Mac OS, can't seem to remember how i use to create an installer. If i have the downloaded [.app], yeah i can use the Disk maker. But with a DMG, how do i create an USB installer with Disk Utility. So many tutorials out there, i just want to know which method does Apple recommend. Thank you.

Posted on Feb 19, 2020 5:45 AM

Reply
Question marked as Best reply

Posted on Feb 19, 2020 8:41 AM

If you have downloaded InstallMacOSX.dmg, double click on it to get InstallMacOSX.pkg.

Double click on that to open an installation window which will convert the .pkg to the Install OS X El Capitan.app. This will be created in your Applications folder.

You can then follow the link above in order to make a bootable USB installer.

Similar questions

6 replies
Question marked as Best reply

Feb 19, 2020 8:41 AM in response to Sureshk0505

If you have downloaded InstallMacOSX.dmg, double click on it to get InstallMacOSX.pkg.

Double click on that to open an installation window which will convert the .pkg to the Install OS X El Capitan.app. This will be created in your Applications folder.

You can then follow the link above in order to make a bootable USB installer.

Create USB installer from an El Capitan DMG file

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.