hi guys,
thanks for all these replies, it helped me a lot to fix the problem on my new imac (having only 4 usb3.0 ports and no dvd drive). The issue is rather due to Microsoft this time : standard windows install does not include usb3 drivers, so no mouse, no keyboard when trying to install windows on new macs (and other hardware as well).
what worked for me using a simple 8gb usb stick (no need to take it out during the process) and a windows ISO package copied to the mac was finally quit simple :
- do BACKUPS !!!!
- install osx, including time machine recovery of old data
- check and, if necessary, delete all other partition than OSX (in disk utility), in my case i deleted the hidden recovery partition as well with terminal utility (i don't need it), you can't do that with the disk utility...
- start bootcamp utility checking only the first two options : create usb install disk and download latest support software
- let working bootcamp (half an hour...) : creates the usb stick having windows install package including the time the usb3.0 drivers... (nice job)
- close bootcamp
- reboot computer
- start bootcamp utility again using only the third option : install windows (the newly created usb stick is still in)
- let bootcamp split the disk in two partitions : hdmacintosh and bootcamp and, after that do the install and
- let bootcamp reboot and install windows, do not exit the process : this time i had the mouse and the keyboard when installing windows 7 from the usb stick (great)
- optionnaly (that's my case) add a third "data" partition doing as follows :
- boot in osx, resize osx partition in disk utility (under "partition") to a lower value (this leaves a free space between the osx and bootcamp partitions
- boot in windows and add a new logical volume in control panel / admin tools / computer management / storage
- finalize the windows install as wished (install software, refit, recover data, etc.)
- that's it...