Changed ESXi virtual machine from UEFI to BIOS mode, so that bios440.rom trick can be used for SLIC.
Instructions copied from http://www.firewing1.com/node/610#gpttombr
The actual GPT to MBR conversion
Through the Rod Smith’s guidance and a few dirty tricks, I was successfully able to convert my GPT partition – without data loss or deleting any partitions – and then boot Windows 7 in legacy/MBR mode. In order to do this you’ll need your Windows installation media at hand as well as a copy of the Fedora 16 Live media. If you don’t have a copy of Fedora 16 Live handy, you can download the Live media ISO (64-bit) from a local mirror here
- Boot your Fedora 16 Live media and wait for your session to start. If you’re having troubles booting, press Tab at the boot loader screen and try booting with the
- Depending on your graphics card, you’ll either be presented with the new Gnome 3 Shell or with the traditional interface. Start a terminal session by putting your mouse in the top right corner of the screen and typing “terminal” in the search (Gnome Shell) or by selecting Applications > System Tools > Terminal (traditional interface)
- Install gdisk:
yum -y install gdisk
This may take a few moments.
- Make a backup of your current GPT scheme:
gdisk -b sda-preconvert.gpt /dev/sda
- Now we will attempt to convert your GPT disk layout to MS-DOS/MBR. Start gdisk:
You should be prompted with:
Command (? for help):
rto start recovery/transformation.
gto convert GPT to MBR.
pto preview the converted MBR partition table.
- Make any modification necessary to the partition layout. See Rod Smith’s Converting to or from GPT
External Links icon
page for more details on this.
- When you’re happy with the MS-DOS/MBR layout, press
wto write changes to the disk.
- Shutdown Fedora 16 and boot from the Windows 7 installation media
- Enter your language & keyboard layout and then select the option to repair your computer in the bottom left corner.
- From the available options, select Startup Repair. Windows will ask for a reboot.
- Follow the previous three steps again to boot the Windows 7 installation and run startup repair
- Once again, boot the Windows 7 installation media but this time opt to open a command prompt instead of choosing startup repair. Type:
- Close the command prompt and run Startup Repair one last time.
That’s it! You should now have a bootable installation of Windows 7 on a MBR partition layout.