Книга: Fedora™ Unleashed, 2008 edition

Installing from CD or DVD

Installing from CD or DVD

Most PCs' BIOSes support booting directly from a CD or DVD drive, and offer the capability to set a specific order of devices (such as floppy, hard drive, CD-ROM, or USB) to search for bootable software. Turn on your PC, set its BIOS if required (usually accessed by pressing a function or Del key after powering on); then insert the Fedora installation disc, and boot to install Fedora.

To use this installation method, your computer must support booting from your optical drive, and the drive itself must be recognizable by the Linux kernel. You can verify this by checking your BIOS and then booting your PC.

The file boot.iso is a 8.5MB CD-ROM image found under the images directory on the Fedora DVD. The image can be burned onto a blank CD, and supports booting to a network install. This is a convenient way to boot to a network install on a PC with a bootable CD-ROM drive, but no installed floppy drive, or when you don't want to use multiple floppies during an install requiring driver disks.

You burn the image onto optical media by using the wodim command. For example, copy the file to your hard drive, insert a blank CD-R into your CD-RW drive, and then use a command line like so:

# wodim -v speed=40 dev=0,0,0 -data -eject boot.iso

This example creates a bootable CD-ROM, and then ejects the new CD-ROM after writing the image. The speed (40, in this example) depends on the capabilities of your CD-writing device. The device numbers are those returned by running cdrecord with its scanbus option, like so:

# wodim -scanbus

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