Using the Ubuntu 12.04 Live CD, is possible not to install Grub? In previous versions, there was a checkbox called something like "skip grub installation", now in 12.04 this checkbox isn't there any more.
It has been many years since the bulk of this answer was the correct answer.
The solution now is to start Ubuntu from a live disc and use the terminal to invoke Ubiquity as follows:
You can alternatively use the short form like this:
The following is no longer valid, but I will preserve it as it was originally when the question was asked and it is possible somebody may want to do this with Ubuntu <= 12.04
Run the install as normal, after the
Select and install software step, the installer will run
Install the GRUB boot loader on a hard disk. It will tell you what other operating systems, if any that it's found, and ask if it should install, at this point, choose
Go Back, then in the installer menu that appears next, choose
Continue without boot loader.
Please be aware that after installation you will have to configure your existing boot loader before you can boot your new installation of Ubuntu.
Run the regular LiveCD and open a terminal. Run either
ubiquity -b or
You can also open a terminal after booting the LiveCD and launch ubiquity with a proper switch, that disables GRUB installation. I forgot what it was called but ubiquity --help will tell you :) That worked for me, when I was trying to setup Ubuntu on my fakeraid PC and GRUB kept going belly-up.
Open terminal and type
ubiquity -b all lower letters
This will open the installer and will install ubuntu with out the ubuntu bootloader known as grub,
- Note : If you don't install Ubuntu's boot loader "Grub" you wont be able to boot Ubuntu, I've tried installing Ubuntu side by side windows, using the above step, then installing EasyBCD, then selecting "Grub 2" as the boot loader for the Ubuntu Part, I rebooted, to find I still could not boot in to Ubuntu with out Ubuntu having "Grub" within it's part, so I do NOT recommend following the above step, unless you know how to get around this, in which case, please post the magic bellow