To select the partition that you just created, type select partition 1, and then click ENTER. To create a new primary partition on the USB flash drive, type create partition primary, and then click ENTER. This command deletes all data from the USB flash drive. Note the drive number or drive letter of the USB flash drive.Īt the command prompt, type select disk, where X is the drive number or drive letter of the USB flash drive, and then click ENTER. The list disk command displays all the disks on the computer. In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk, and then click ENTER. Open a Command Prompt window as an administrator. Insert a USB flash drive into a running computer. Restore or repair your server running Windows Server Essentials
Restore a full system from an existing client computer backup
Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, hold down the Option key, and select the USB you just created to reinstall Mac OS X.To create a bootable USB flash drive for use in recovering or reinstalling Windows on a PC instead of a server, see Create a recovery drive.įor additional scenarios in which you may want to create or use a bootable USB flash drive, see the following topics: Depending on your computer and other variables, it could take one or two hours to complete the process.
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system. In the warning dialog box, click the Yes button. On the left pane, you’ll see all the Windows PC drives listed right-click the USB drive you intend to use to reinstall Apple’s OS X and select the Restore with Disk Image option. (You’ll be prompted to Enter Key or Run because we’ll be using it once, click the Run option.) Right-click the TransMac software icon and Run as administrator. Make sure you take off any important documents.) (Remember that all the data in the USB will be erased. Then we'll to use the format MS-DOS (FAT). I'm going to name mine 'Ubuntu image' but the name doesn't really matter. Here you can choose a name, format, and scheme. Once open, find your USB drive and click on the drive itself (not a partition). Insert the USB drive that you’ll use to fix your installation of OS X. To reformat the USB drive, plug it in to your Mac and open the Disk Utility. (If you want to support the developer, you can purchase the full version.) Quick note: TransMac is a paid software, but it has a 15-day trial solution that gives us more than enough time to move the DMG files to the USB drive from Windows. Use these steps to set up a USB drive with a GPT partition: To do this, you’ll need to use the Diskpart command-line utility on Windows 10. Create Mac OS X bootable USB installation mediaīefore using TransMac, you first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.
One high-quality USB flash drive with 16GB of storage.Requirementsīefore you dive into this guide, you’ll need a few things:
These instructions will also work for Windows users running Mac OS X on a virtual machine and needing to upgrade to the latest version.
However, if you find yourself in a scenario where your device (iMac, MacBook Pro, Air, Mac Pro, or Mini) is not responding, and you happen to have a Windows 10 device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant. This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. Enter the following command to identify the mounting point assigned to your USB drive: diskutil list. If you’re still using a Mac OS X, the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required. Insert your UFD into your Mac and launch Terminal.