Why can't I choose to install linux on a hard disk as a graphical installation or text installation?

Why can't I choose whether to install linux on a hard disk or text-Linux general technology-Linux technology and application information? For more information, see the following. The Internet says this:

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Extract vmlinuz and initrd. img from the DVD and put them in the same directory as the DVD image in isolinux)

1: Download a tool: Grub For Dos (Attachment)
Decompress grldrand grub.exe to C :\

2: Modify boot. ini (change the attribute of boot. ini to writable)
Add a row at the end
C: \ grldr = "GRUB"
Save and exit

3: Create and modify C: \ boot \ grub \ menu. lst on drive C.
Add:
Title Install Fedora 7
Kernel (hd0, 4)/vmlinuz
Initrd (hd0, 4)/initrd. img
Reboot
Here (ha0, 4) indicates the fourth partition (d disk) of the first hard disk, that is, the location of the installation source, and so on.

Restart and select GRUB to boot the installation. Good luck!
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But why can't I choose to install images or text?