I'll try to make this short... I've been in the process of installing WinXP onto an external USB drive to be used on my MBP C2D without installing ANYTHING on my OSX internal drive or partitioning. I've come a long way with tools from some very slick, resourceful people on the net and my own personal obsession with this.
This is where I am right now:
- I've made a USB installable WinXP disk with this guide
- I did install Boot Camp 1.1.2 to burn my driver disk, thats all.
- I've boot to the XP disc then been able to begin the first phase of installation of XP, but when I reboot I am unable to boot to the windows drive to continue installation. Hitting Option -- or Cmd-Option-Shift-Delete doesn't work, also going into the OSX's Startup Disk option in System prefs. and selected the Windows drive doesn't work, it just sits there on the reboot.
- So I came across rEFIt - great tool, I decided to install it to a spare USB thumb drive (a suggestion from the site). rEFIt comes up, I select the windows USB drive, the gray windows logo appears then... I get a Booting Legacy OS error concerning rEFIt not fiding the USB Device Path.
I've read people with other models have gotten this to work and other people with this model have reported similar problems. What I have gathered is that this could simply be an issue that rEFIt (despite being an awesome tool) is not up to date enough to work with the MBP C2D firmware, that is why we are having this problem with it not initializing the USB for boot up. I found a thread on another forum where someone was having issues with the MacPro firmware and rEFIt, the creator of had to come out with what is now version 0.8 to address the issue.
Wasn't sure if anyone had any other suggestions.... any help would greatly appreciated, like many, I've lost lots of sleep over this!