This will put a space at the end of the files address, making room for the next command. Type diskutil unmountDisk devdisknumber making sure to replace disknumber with the disks IDENTIFIER name and number (e.g., disk2 )into Terminal, then press Return.Ĭlick and drag the ISO file (or disk image file) that you want to boot into using the USB drive into the Terminal window. Youll usually find your USB drive under the (external, physical) heading near the bottom of the Terminal window. Look for the USB drive that you plugged into your computer, then look at the USB drives name under the IDENTIFIER heading. Its a black box in the middle of the Spotlight search results. If you want to create a bootable USB drive on a Mac, youll need to have an ISO file (or an image file, if youre backing up your computers hard drive) ready to drag and drop into Terminal. Your USB flash drive should plug into one of the rectangular or oval USB or USB-C ports on your computers housing.
#Tmpdisk mac install
Your USB drive is now bootable, meaning that you can place an operating systems ISO file or an image of your computers hard drive on the USB drive to install it on another computer. You should see a confirmation message appear in the Command Prompt window. Type format fsfat32 quick into Command Prompt, then press Enter. Type select disk number into Command Promptmaking sure to replace number with the flash drives number as presented in the listand then press Enter.
This will search your computer for the Command Prompt program. Your USB flash drive should plug into one of the rectangular USB ports on your computers housing.įlash drives only fit one way, so dont force the drive if it doesnt fit. Keep in mind that you dont need a USB drive to install new versions of Mac OS. You can make a USB bootable on a Windows or Mac computer by using Command Prompt or Terminal, both of which are free programs.
#Tmpdisk mac how to
How To Make A Ram Disk Easily With Tmpdisk Mac Computer By This is useful when installing an operating system (e.g., Windows) on a computer that doesnt have a CDDVD reader. Log in Sign up Terms of Use We use cookies to make wikiHow great. This is only useful when using Windows to create a Windows 10 installation USB.
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