I'm trying to get Win7 working from an external FireWire drive (Macbook pro mid 2009, OSX El Capitan). I've tried the two tutorials below; the installation seems smooth either way and mac recognizes the external hard drive as windows drive after restart (holding option key). But after selecting the windows option, I end up with a "No bootable device - insert boot disk…
Would be fantastic if someone has experience with this and could give me a hint!
Edit: I've now also tried the tutorial here: No bootable device USB 2.0 MacBook Pro mid 2014 I've adapted the Disk and partition IDs to match my system. Same result, after reboot of the mac the external hard drive is recognized as windows partition, but remains not bootable.