So, my friend's had his MacBook for quite a while now, and both its CD/DVD drive and broadband plug are broken. He said it also runs really sluggishly, so I told him I'd wipe it and upgrade his OS for him. Now, obviously, since the drive is busted (there's actually a disk stuck in there), I can't just pop in the Snow Leopard disk. I have tried two things: 1) sharing my own disk drive over the network and letting his computer read the SL disk from my computer, but this didn't work, as I sort of expected it wouldn't, because as soon as the computer restarts to begin the installation, the network connection closes. 2) I ripped my SL disk to my computer as a .dmg and restored it to a partition on my external HD. The odd part is that when I boot up his computer with the drive plugged in, it doesn't seem to mount the drive until after the OS is started up. Thus the "OSX Install Disk" doesn't show up on the boot-option screen after pressing "option" during start-up. I realize that I can buy an 8gb flash drive and get around all this pretty easily, or perhaps get a firewire cable to run target-disk mode (which I'm not very familiar with), but just I'm curious if there are any (free) hidden tricks, even if complicated, to get this done. Thanks!