

This entry was posted in OS X and tagged OS X, terminal, usb drive, Yosemite, yosemite usb drive by admin. Click on the Erase button to format your USB drive. Click on the Erase tab and choose the Mac OS Extended (Journaled) format. In the sidebar of Disk Utility, select your USB flash drive. Once the download is complete, launch the Disk Utility program. Open Disk Utility, select the USB drive, and click the. Plug the drive into a mac and start the installation. First, you need to download the OS X Yosemite installer from the Mac App Store. To create the bootable installer, plug the USB drive into your current Mac. Detach the USB Drive hdiutil detach /Volumes/OS\ X\ Install\ ESD/Ĩ. sudo cp -a /Volumes/OS\ X\ Install\ ESD/BaseSystem.chunklist /Volumes/OS\ X\ Base/System/ sudo cp -a /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg /Volumes/OS\ X\ Base/System/ħ. sudo rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages sudo cp -a /Volumes/OS\ X\ Install\ ESD/Packages /Volumes/OS\ X\ Base\ System/System/Installation/Packagesĥ.

sudo asr restore -source /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg -target /Volumes/USBDrive -erase -format HFS+Ĥ. Hit y and then Enter to continue and erase all the data on the USB drive. Replace “USBDrive” with the name of your drive. Restore the Yosemite InstallESD.dmg to your USB drive. Open up a terminal and mount the Yosemite Installer sudo hdiutil attach /Applications/Install\ OS\ X\ Yosemite.app/Contents/SharedSupport/InstallESD.dmgģ. In Disk Utility format your USB drive as HFS+Ģ.

It will also launch the Yosemite installer app when the download completes. This will put a file called Install OS X 10.10 Developer Preview.app in your /Applications folder. Download the OS X Yosemite Developer Preview installer from the Mac App Store. You will need to download the OS X 10.11 install through the Mac App Store by redeeming your code from the beta program. Step 1: Obtain the Yosemite Developer Preview Installer. An 8GB or larger USB flash drive or an 8GB or larger partition on some other. You will need at least an 8GB USB flash drive as the El Capitan beta is a 6GB download. Weve created Yosemite USB from both Mavericks and Yosemite, but your experience with other versions may vary. You will have to apply and be accepted into the OS X Beta program to get access to the early preview of the operating system but this same process applies to the final versions of OS X.
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Fortunately, it’s pretty straight forward to create a USB installer for the latest OS X El Capitan, currently in beta, and the process is the same as OS X 10.10 Yosemite. Creating a bootable USB drive Mac OS X installer can save you time and bandwidth when you have a few Macs you want to update or you want a backup copy of your operating system installer.
