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3.4. Preparing Boot Media

Fedora images are Hybrid ISOs and can be used to create installation media with both optical and USB disks, for booting on both BIOS and UEFI systems.

Note on Universal USB Creators

Universal USB creation tools such as Unetbootin are a historically popular way to create USB installers from ISOs intended for optical media. They typically function by creating a filesystem on the USB drive, extracting files from the image, and writing syslinux bootloader to the device.
These methods circumvent the bootloader configuration built into Fedora images, which are pre-partitioned and designed to boot on UEFI systems with SecureBoot enabled as well as BIOS systems. They do not produce a consistent result with Fedora's images, especially for use with UEFI systems.
Utilities that use a direct write method, and do not modify the Fedora image, will produce the most consistently successful results.

Be sure you choose the right device!

Most media creation methods in this section are destructive. Ensure you do not need any data on the USB stick, and double check you have chosen the correct device before continuing.
Procedure 3.3. Creating USB Media on Windows
  1. Download and run the SUSE Studio ImageWriter or Rawrite32.
  2. Choose the downloaded Fedora image. You may have to change the file selection dialog's options to view ISO or all file types.
  3. Choose the USB device you wish to convert to installation media.
  4. Continue with media creation using the appropriate button. After a few minutes, it will report the process is complete and your installation media will be ready to use.
Procedure 3.4. Creating USB media with GNOME Disks
  1. On a system with GNOME, or with the gnome-disk-utility package installed, open Disks using the system menu.
  2. Click your USB device in the left column.
  3. Click the menu icon in the upper right corner of the window, and choose the Restore Disk Image option.
  4. Navigate to your image file and click Start Restoring. After a few minutes, it will report the process is complete and your installation media will be ready to use.
Procedure 3.5. Creating USB Media on the Linux command line
  1. Open a terminal window and insert the usb drive.
  2. Find the device node assigned to the drive. In the example below, the drive is given sdd.
    [288954.686557] usb 2-1.8: New USB device strings: Mfr=0, Product=1, SerialNumber=2
    [288954.686559] usb 2-1.8: Product: USB Storage
    [288954.686562] usb 2-1.8: SerialNumber: 000000009225
    [288954.712590] usb-storage 2-1.8:1.0: USB Mass Storage device detected
    [288954.712687] scsi host6: usb-storage 2-1.8:1.0
    [288954.712809] usbcore: registered new interface driver usb-storage
    [288954.716682] usbcore: registered new interface driver uas
    [288955.717140] scsi 6:0:0:0: Direct-Access     Generic  STORAGE DEVICE   9228 PQ: 0 ANSI: 0
    [288955.717745] sd 6:0:0:0: Attached scsi generic sg4 type 0
    [288961.876382] sd 6:0:0:0: [sdd] Attached SCSI removable disk
  3. Use the dd utility to write the image. Make sure you have the right drive!
    # dd if=/path/to/Fedora-Live-Security-x86_64-21.iso of=/dev/sdd
Procedure 3.6. Creating a Boot CD or DVD
In addition to creating a bootable USB flash drive, you can also use the provided ISO images to create bootable optical media (a CD or DVD). This approach may be necessary when installing Fedora on an older system which can not boot from USB.


The exact steps you need to take to burn a bootable CD or DVD from an ISO image will vary depending on what disc burning software you use. This procedure only offers a general overview.
  1. Insert a blank CD or DVD into your system's CD or DVD burner.
  2. Open your system's burning software - for example, Brasero on Fedora systems with GNOME desktop environment, or Nero on Windows systems. In the software's main menu, find an option which lets you burn an ISO image to a disc. For example, in Brasero, this option is Burn image in the main menu on the left side of the window.
  3. When prompted, select the ISO image of Fedora to be burned, and the CD or DVD burner with a blank disc inside (if you have more than one drive).
  4. Confirm your selection, and wait for the disc to be burned.