On Sun, 1 Jan 2017, Michael . wrote: > Some things need to be cleared up. > 1) UEFI does not use MBR (Master Boot Record), UEFI uses GPT (GUID > Partition Table). > 2) GPT can, and does, work in some newer BIOSs but not all. > 3) I have never seen, or heard of, any instance where an OS installed in > Legacy BIOS is visible on a UEFI boot. Please verify your install of > Windows 7 is installed on BIOS and is an option on Grub EFI. Windows is not visible in grub (as I noted). it is visible of course in the BIOS. parted tells me the disk is MBR. it says, "Partition Table: msdos." > 4) AFAIK Windows does not recognise non MS OSs in its bootloader, to have > multiple options that include non MS OSs you must use a non MS bootloader > as the primary bootloader (i.e. GRUB) which will then initiate the MS > bootloader (NT bootloader) to boot MS OS installs. As mentioned above by > someone else using os-prober will let GRUB know if there are other OSs > installed. weirdly in NetRunner os-prober gives no feedback. it is installed. > 5) Using a VM is a drain on RAM, you need enough RAM to run the host OS and > then enough to run the Virtual OS inside the VM. it's ok, the laptop has 8 gb ram. so it's not running gpt, thus no uefi. the BIOS though has two entries for NetRunner, one indicating uefi-os. I also see uefi files in /boot. recall csm legacy is enabled. I'm going to hold off and study the situation. my window for playing around is drawing closed for now, so may re-visit next weekend. I don't know why grub doesn't see Windows. I can't do it right now but I'll try grub-update, as suggested, at my next opportunity. f. > If you are using a VM to run an MS OS most of your RAM will need to > be reserved for the MS OS. In my experience unless you have alot of > RAM this will negatively affect performance. There is a general move > towards Hypervisors (Zen being an excellent open source option) but > even these are host machines with virtualised OSs and the same RAM > issues apply. > > On 1 January 2017 at 13:40, Felmon Davis <davisf@...> wrote: > >> On Sat, 31 Dec 2016, Greg Madden wrote: >> >> updating/installing grub might solve the lack of grub boot screen. I >>> would use the 'dry-run' option..os-prober is the part that looks for all >>> the other OS's installed so grub can build a multiboot scenario. >>> >> >> certainly worth a try! >> >> Debian has no issues with uefi, at least stretch. >>> >> >> good. >> >> ps multiboot is the old way, if you have the hardware, virtualization >>> works great. I use Debian with Win7 as a guest..runs fine..caveat, I >>> have an OEM Win7 disk., >>> >> >> yeah, I have a VM running under NetRunner too. I bought a copy of Windows >> 7 pretty cheap and got a license. >> >> for no good reason, maybe mainly just lack of familiarity with VM, I'm >> inclined to keep 'the old way' available. >> >> I do agree that the VM works nicely. I need it to work with the school's >> classroom projectors (hdmi) and this I haven't tested yet. >> >> f. >> >> -- >> Felmon Davis >> >> For courage mounteth with occasion. >> -- William Shakespeare, "King John" >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: trinity-users-unsubscribe@list >> s.pearsoncomputing.net >> For additional commands, e-mail: trinity-users-help@... >> oncomputing.net >> Read list messages on the web archive: http://trinity-users.pearsonco >> mputing.net/ >> Please remember not to top-post: http://trinity.pearsoncomputin >> g.net/mailing_lists/#top-posting >> >> > -- Felmon Davis A few hours grace before the madness begins again.