OS X Yosemite system how to make U disk installation disk


OS X Yosemite system how to make U disk installation disk

You need to pass the system verification, so you can only upgrade to OS X 10.10 by making and starting the USB flash disk. At the same time, you need to know that you can upgrade to OS x10.0 through this method The hard disk will be formatted, so please back up all your data.

OS X Yosemite系统怎么制作u盘安装盘

First, you need to download the complete OS X Yosemite installer from the app store. After downloading, the installer will be stored in the application (/ Applications) folder. Please note that you must not directly start the program to install OS X Yosemite at this time, because the installer will be deleted once the installation is completed. At least, you should finish the independent installation media before starting the program installation.

Prepare independent installation disk media: you need a mobile storage device with a capacity of at least 8GB, such as USB flash disk, mobile hard disk or SD card. Insert it into the Mac and start the disk tool to “erase” the media. Please back up the important data in the media before erasing it. Please name the drive letter as “Untitled” format [Mac OS extended (journaled)] / [Mac OS extended (journaled)].

Create the installation disk through the “terminal” command: open the “terminal” and execute the following commands in the command line. When prompted to enter the password, please enter your OS X administrator login password.

The main difference between the Chinese version and the English version is that the installer you download (install OS X Yosemite) is in English and (install OS X Yosemite) is in Chinese.

English version

sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia –volume /Volumes/Untitled –applicationpath /Applications/Install\ OS\ X\ Yosemite.app –nointeraction

Chinese version

Sudo / applications / install \ OS \ x \ Yosemite X / content \ applications \ volume — app –nointeraction

Copy the code directly, and then paste command + V into the “terminal”.

Completion of production: if everything is normal, erasing disk: 0%… 10%… 20%… Will be displayed in the “terminal” interface, and the production is finally completed. After making, you can use this media to start any MAC compatible with OS X Yosemite (you need to insert the media on the target Mac, and then press and hold the option key when starting up) to start the installation of OS X Yosemite.

Here’s a reminder: click option and choose USB flash disk installation. After entering, you can choose Disk tools to format and install the hard disk purely (it’s not recommended for novices to do it, and those who use bootcamp dual system must not click). Here we don’t know much about dual system. When our 10-year MBP upgrades Mavericks, dual system still exists, but the owner of the new system can’t guarantee it, If anyone has tried, please let us know.

*If you name the drive letter a different name, change / volumes / untitled to / volumes / {drive letter name} in the command.