Using Qemu for creating bootable usb when wireless is needed.
If your machine has a wireless driver that has to be built, you can attach a usb key to your machine and make it into a functioning system.
# chmod 777 /dev/sdX Because you are installing a new system, you want the normal user to have complete rights to the usb device.
$ qemu-system-i386 -cdrom /path/to/iso/or/device -hda /dev/sdX -boot d
It can be time consuming but it works. I created a Debian key; and, of course, one should know that others should also work..
What is it good for and what equipment can be used? A spare portable drive and older computers. I have not had much progress trying powerpc builds on i386.