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$ [command]#cd ~/Downloads#
$ [command]#dmesg|tail#
[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
> $download_checksum = [System.BitConverter]::ToString($sha256.ComputeHash([System.IO.File]::ReadAllBytes("$PWD\$image"))).ToLower() -replace '-', ''
> $image = "Fedora-Server-DVD-x86_64-21.iso"
> $checksum_file = "Fedora-Server-21-x86_64-CHECKSUM"
> $sha256 = New-Object -TypeName System.Security.Cryptography.sha256CryptoServiceProvider
> $expected_checksum = ((Get-Content $checksum_file | Select-String -Pattern $image) -split " ")[0].ToLower()
$ sha256sum -c *CHECKSUM
$ shasum -a 256 -c *CHECKSUM
After the download completes, or when [application]*Fedora Media Writer* is ready. Plug in a USB drive you wish to use as a bootable media.
[application]*Fedora Media Writer* has been improved and is now the default way to make bootable media. [application]*Fedora Media Writer* supports Linux, Mac, and Windows. It is an easy way to make bootable USB media to install Fedora (or other operating systems). While use of Fedora Media Writer is strongly encouraged, other USB media creation software can work as well.
Because transmission errors or other problems may corrupt the Fedora image you have downloaded, it is important to verify the file's integrity. After the images are created, an operation is performed on the file that produces a value called a `checksum` using a complex mathematical algorithm. The operation is sufficiently complex that *any change* to the original file will produce a different checksum.
Be sure you choose the right device!
By calculating the image's `checksum` on your own computer and comparing it to the original `checksum`, you can verify the image has not been tampered with or corrupted. The original checksum values are provided at link:++[], and are [command]#gpg# signed to demonstrate their integrity.
Calculate the downloaded image's checksum. This will take a while!
> cd $HOME\Downloads\
> ls
Change to the directory containing the downloaded files.
Click the menu icon in the upper right corner of the window, and choose the `Restore Disk Image` option.
Click the red "Write to disk" button.
Click your USB device in the left column.
Compare the calculated checksum to the expected checksum.
Confirm your selection, and wait for the disc to be burned.
Creating a Boot CD or DVD