boot-campmacusbwindows 7
Is it possible to install Windows 7 on Mac from a USB stick, using Boot Camp? (it's so much faster than the usual CD/DVD install)
And the second question is: during the installation process (as described here: http://support.apple.com/kb/HT3986) I have to insert the SN install DVD. The problem is that I only have .dmg, so my question is: can I just use that instead of the DVD?
you can do it, but it is not supported and is very complex to setup.
Look for booting windows 2008 r2 from usb!
I did this: Native VHD boot Windows 7 or Server 2008 R2 from an external USB drive.
Through Disk Utility you can restore the Windows 7 ISO onto the flash drive.
When you hold option at startup to access the boot options the disc will appear.
Note: When you do the restore through Disk Utlity make sure your flash drive is partitioned correctly.
It needs to be partitioned as Mac OS X journaled (HFS+) - this will enable the GUID partition map (so the boot menu can read the ISO). Next, click source and within the finder locate the ISO and you're set.
Best Answer
With the advent of Macs that have no optical drive, there's more information on this now:
http://howto.cnet.com/8301-11310_39-20020513-285/install-win-7-on-macbook-air-from-a-usb-drive/