Why Make a Bootable USB Installer. A bootable installer for OS X El Capitan is a good idea, even if your plan is to perform an upgrade install. Having your own copy of El Capitan on a separate device ensures that you'll always be able to install or reinstall the OS X. If you download OS X 10.10 Yosemite from the App Store it's in a application bundle (Install OS X Yosemite.app), not a.dmg file, even though there is an 'InstallESD.dmg' within the application bundle, so how did you create the USB Yosemite installer? Apple released the new Mac OS X 10.10 Yosemite in the Mac App Store for everyone to download and install for free on October 16th, 2014, but downloading a 5+ GB file for each of your computers will take some serious time. The best thing to do is download it once and create a bootable install USB drive from the file for all of your Macs. I did the same thing. Trying to install on a 32Gb USB 2 thumb drive; 1 minute installing takes 1 hour to install. I forced to power down my mac with the power button to abort the Yosemite install. It started the Welcome Screen of Yosemite WITHOUT the thumb drive. Light panic here. Step 1: Install UUByte DMG Editor. Install DMG Editor after downloading it from the official site. Insert your USB drive into a free port. Step 2: Insert USB Drive and Import DMG File. Launch DMG Editor and select the 'Burn' option, which will take you to a new window. Step 3: Start Burning DMG to USB. Select the DMG file and specify the.

I have MacBook Pro (Mid 2012) model, and I formatted the whole hard-drive to create partitions on 500GB HDD. So now I don't have any OS installed on MacBook and for booting I use Cmd+Opt+R and It gives me 'Internet Recovery' option. After that It prompts me 'OS X Utilities'. From there I choose 'Re-install MacOS' and It gives me Yosemite installation.

The problem is, I don't want to install Yosemite, I want to install macOS Sierra but it is prompting me to download Yosemite. So I downloaded a Install macOS Sierra.dmg file from torrents and now I want to create a Bootable USB drive.

While searching for solutions on net, I found poeple are installing from 'Install macOS Sierra**.app**', not from '.dmg' extension.

Quesion

Please suggest me how would I create Bootable USB from Install macOS Sierra.dmg? I don't have '*.app' folder.

I have access to my other machines with MacOS and Ubuntu to make it happen.

Install Yosemite Dmg From Usb Drive

While searching for solutions on net, I found poeple are installing from 'Install macOS Sierra**.app**', not from '.dmg' extension.

Quesion

Install Yosemite Dmg From Usb Flash Drive

Please suggest me how would I create Bootable USB from Install macOS Sierra.dmg? I don't have '*.app' folder.

Install Yosemite Dmg From Usb

I have access to my other machines with MacOS and Ubuntu to make it happen.