dual booting Ubuntu 13.04 and Windows 7

[staticsafe]

On Wed, May 29, 2013 at 01:51:01AM +1000, Basil Chupin wrote:
> On 27/05/13 17:03, Tom H wrote:
> >On Sun, May 26, 2013 at 5:25 PM, Gerhard Magnus <magnus at agora.rdrop.com> wrote:
> >>This may be helpful to anyone trying to dual boot Ubuntu 13.04 and Windows
> >>7, or even just to install Ubuntu 13.04 by itself on some post-2010
> >>machines. At least the details will end up on the Web for someone having
> >>similar problems.
> >>
> >>I bought a new box with the Intel DB75EN motherboard that uses the UEFI
> >>standard and DPT partitioning for the hard drives. I also bought Windows 7
> >>Home Premium and had it installed at the shop. My plan was to dual boot
> >>Windows and Linux as I have successfully for the past decade or so. (I still
> >>need Windows because some people I collaborate with use Microsoft Word, and
> >>LibreOffice has never quite caught up with it.)
> [pruned]
> 
> >If you're using UEFI, there's no MBR! If you're using UEFI, you
> >can go into the firmware either right after boot or from the grub
> >menu ("System setup") and select Windows or Ubuntu - unless you've
> >deleted the UEFI boot entries from NVRAM. Once in Ubuntu, you can
> >fix grub to display both Windows and Ubuntu options. I've
> >installed Ubuntu alongside both Win7 and Win8 (the latter with SB)
> >without a hitch.
> 
> Correct me if I am wrong but Win 7 does not require UEFI, even if
> the mobo has UEFI; Win 8 on the other hand probably does require
> UEFI to function.
> 
> Both my computer and my wife's have UEFI motherboards but UEFI is
> turned off.
> 
> BC
> 
> -- 
> Using openSUSE 12.3, KDE 4.10.3 & kernel 3.9.4-1 on a system with-
> AMD FX 8-core 3.6/4.2GHz processor
> 16GB PC14900/1866MHz Quad Channel Corsair "Vengeance" RAM
> Gigabyte AMD3+ m/board; Gigabyte nVidia GTX550Ti 1GB DDR5 GPU

Windows 8 does not require UEFI. But if you want to use the "secure
boot" functionality you need UEFI. This is a rather confusing
topic so I'll post a quote from Wikipedia:

"Certified Windows 8 hardware will require secure boot. Soon after the
feature was announced, September 2011, it caused widespread fear it
would lock-out alternative operating systems.[11][12][13][14] In January
2012, Microsoft confirmed it would require hardware manufacturers to
enable secure boot on Windows 8 devices, and that x86/64 devices must
provide the option to turn it off while ARM-based devices must not
provide the option to turn it off.[15] According to Glyn Moody, at
ComputerWorld, this "approach seems to be making it hard if not
impossible to install GNU/Linux on hardware systems certified for
Windows 8"."

- https://en.wikipedia.org/wiki/Secure_Boot#Secure_boot

See also:
https://en.wikipedia.org/wiki/Windows_8#Secure_boot
-- 
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