<div class="gmail_quote">On Mon, Nov 5, 2012 at 2:20 PM, R KANNAN <span dir="ltr"><<a href="mailto:rk111810@gmail.com" target="_blank">rk111810@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br><div class="gmail_quote">
<div>No. My problem is the reverse of what you are describing here. I have a hard disk with MBR partition layout with two Windows 7 partitions with data already. When I add Ubuntu (mythbuntu 12.04), creating more partitions for '/', '/home' etc, it goes through fine but DOES NOT UPDATE the MBR. So I can only boot to Windows 7.</div>
<div> </div>
<div>I was wondering why the installer thinks it is a GPT partition scheme which explains why the MBR is not updated. There does not seem to be anyway to control the boot loader in the installation other than where it goes to '(/dev/sda' in my case).</div>
<div> </div>
<div>In the HP bios there seems to be a boot option to select 'Legacy Boot Devices->ATAPI DVD/CD-ROM' in addition to 'UEFI Boot Devices-> ATAPI DVD/CD_ROM' , Perhaps I can choose that but unfortunately that does not allow me to choosing kernel options ('nomodeset' needed for my graphics card) while botting from the install CD.</div>
</div>
<br></blockquote><div><br>Check out <a href="http://www.linuxbsdos.com/2012/10/11/dual-boot-windows-7-and-ubuntu-12-04-on-a-pc-with-uefi-hardware/">http://www.linuxbsdos.com/2012/10/11/dual-boot-windows-7-and-ubuntu-12-04-on-a-pc-with-uefi-hardware/</a><br>
<br>I followed that guide to install a dual boot on another machine. Basically, you write GRUB to the /boot partition instead of the MBR and add an entry for Linux to the Windows 7 boot menu with a tool that is linked in the article. You can set up either Windows 7 or Linux to be the default boot option. Windows loads GRUB, you choose your kernel options (you probably want those in the grub.cfg), Linux loads. Installing to the /boot partition is also great when you're chain loading Linux (two or more different distributions on one machine).<br>
<br>It won't put GRUB on the MBR but it's a viable alternative. You don't even have to uninstall your current Linux if you can figure out how to alter your GRUB configuration. But since you've only just installed, I'd probably do it all over again from scratch. I like it because it doesn't mess with the Windows 7 "magical boot process" at all.<br>
<br>Jerry<br></div></div>