Hi,
Firstly thank you very much for all the tools and information on this site. They have helped me tremendously.
And now for the main issue.
I will first describe my setup as this will make it clearer as to what I am trying to achieve.
As you know, when you boot your computer it will first run to the POST before choosing the boot-device.
Some hardware (such as certain GPUs and RAID utilities) will run their own POST before allowing the BIOS to boot the first device.
Now I have a pci-device which has its own POST at which one can interrupt with certain key presses in order to get in to the settings of the device. There is also a CD which comes with the device and which can be loaded at those POST prompt.
I guess that by now you guys know where I am heading.
I would like to put an iso of that CD on my flash-drive and use Grub4dos to load it on a virtual drive and then run it at the POST prompt of the pci device.
I managed loading the CD from iso no problem, but when then booting from hd0 it just loads the OS. The problem is that by the time Grub4dos loads the device has already finished POSTing. If I reboot the pc then the iso will be unloaded and the virtual CD device won't exist at the POST of the pci device.
The question is whether there is a way to soft reboot the computer without loosing the virtual device?
Alternatively, is there a way Grub4dos can instruct the hardware to reinitialize and run through the POST again?