I find myself with one old iBook G4 1.42Ghz with 1.5GB of RAM and a broken cd drive. I've read the instructions at ifixit.com and i'm pretty sure that for $100 or so, I could fix it myself. However, I bought a MacBook to replace the old iBook two months ago and I haven't used the CD drive yet. Two months without a CD drive, I'm thinking about it, I don't think I'll ever need the CD drive because I get all my software, music and movies online now.
So, the thing is, this iBook needs a clean OS install. After 2+ years as a developer's primary computer, its overrun with wierd modifications and lots of extra software, installed via the command line. I'm going to clean it up, reinstall everything and give it away.
Here's an easy way to erase and reinstall without a CD drive. I took my firewire drive, copied everything off of it onto the MacBook, opened disk utility and partitioned the drive with a 6GB partition and the rest on another partition. You can do this for as many boot disks as you want. I just need this one, so I'm only making one partition. Next, I put the Install disk into the MacBook and in disk utility, I made an image of it. When that was complete, I used disk utility again to restore the image to the 6GB partition. I moved all of the data that was on my external back onto the large partition. Now i have a bootable disk on my external. I plugged the external into the iBook and restarted while holding down the option key. The iBook booted up to a disk selecter, one of those crude UIs that lurk in the shadows behind your pretty OS waiting to help you when something breaks. Its a little slow and hard to use the trackpad at that point but it works and when you click on the name of your install disk partition and then click the little arrow, you're on your way to seeing the stupid OS X welcome video in no time at all.