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Originally Posted by pwalden
Can you really power off the first (master/primary?) drive have still have the second (slave/secondary?) drive still accessible?
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Yes. Many people have done it. I have done it many times experimenting with it for the paraphrased HOWTO (it's not my preferred dual boot method). It's a well-known technique even though it may not be so widely used. You can still do the basic idea without unplugging that first drive. Just change the drive order in BIOS or with the jumpers so that the Windows drive becomes second and the drive for Fedora is now first. Install Fedora and fix the grub.conf to boot Windows now on a non-first drive. But that defeats the purpose for the ultra-paranoids. People do that accidentally all the time. It's the reason people are advised to use the
map GRUB menu command here so often when their Windows system won't boot from GRUB because it's now on a non-first drive in grub.conf. That happens nearly every day here.
P.S.: The link in that post above was busted. Now fixed. It goes to a single post view from a thread with Jim Lawrence's instructions paraphrased.
P.P.S.: Jim Lawrence's wiki with the original instructions is off-line more than it's online. It's why I wrote the paraphrased instructions. It's down even now, and I can't find it anywhere else with Google, but I found the Google cached page of it in case anyone is interested. This link to the cached page may not be a permanent thing...
Dual Booting Linux by Jim Lawrence
Actually, I have always thought Jim Lawrence's original instructions could stand some rewriting. It kinda loosely throws around terms like primary, secondary, master, slave. It uses "cable" when "channel" would be better (IMO). Besides, IDE drives are slipping away from us now. But this idea still works with SATAs, too. That could be included in a rewrite.
P.P.S.: Hey, I just thought of one last thing about all this. My personal experience and experiments with this method were a long time ago. Surely before Fedora 7. That means before the new libata driver code used for all hard drives nowadays. I can't say with confidence how that will affect the outcome when this method is used now. I'm too lazy to do all of that work again with a modern Fedora.