On Mon, Jul 23, 2012 at 11:37 AM, Jake Thomas <[email protected]>wrote:
> Ok. A few things: > > 1. What are you trying to do with the DOS utility? There might be a Linux > tool that does the same thing, and Linux can be booted from EFI. > > I'm trying to run a memory exerciser that stresses all the DRAM in the system. Something similar to memtest86+ only more rigorous. > 2. What would happen if you just left it in BIOS mode all the time? > I'm also trying to run a memory exerciser in that's designed to run from EFI. I want to run one, then the other, automatically. I have one thumb drive that will boot to both DOS and EFI depending on how the BIOS is configured. > > 3. You might be able to switch the firmware mode from within the operating > system, such as by writing to /dev/mem. If it's possible to do the switch > from within an OS, that can be automated. > > I thought about this and seems very possible given the thumb drive that I talk about above but I think I'd need some knowledge of the system/BIOS layout in order to hit the correct location which would change the switch. 4. What hardware do you need DOS to access? If you ran DOS in Xen, would > PCI passthrough be sufficient? > > Mainly direct access to the memory. I don't think it's gonna happen, no big deal. I think we're just going to have to drop the DOS requirement and build some software to do the DOS-style-memory-testing from Linux. It seems that would make everyone's life easier (I know I dig linux). Thanks for all your help with this Jake. -Greg
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