I am able to run Ubuntu from a USB thumb drive, but EVERY time I try to install Ubuntu, all is well until I get the error grub-install/dev/sda failed.
It gives me the option to continue without a boot loader; cancel the installation or install grub somewhere else.
My machine is a Dell XPS, with two 500G HD in a RAID 0 array. The BIOS is an A04, (I think) I've been through the BIOS looking for problems that might stop the boot loader installation.
I would very much like to use Ubuntu, but this inability to install the boot loader is very frustrating.
I would very much appreciate any suggestions.