Originally Posted by etcetera
I have a Sun Ultra 40 (x86 platform) that runs Solaris 10.
But I also want to add Windows and a version of Linux (haven't decided on the distro yet)
How do I make this dual (Or triple) boot?
I want it to boot into Solaris by default.
Install Windows first, leave free space for the other OS's. Boot from the Linux DVD, perform the installation, and it'll be dual-boot when you're done, with an option for Windows on your Grub menu.
You don't say whether or not you're using Vista, though. There's a few catches when running Vista, but it's doable, and there are lots of tutorials and articles (alot on here, too), that'll walk you through it. Not sure how Solaris 10 handles the MBR, though.
Since you asked a fairly generic question, the best we can do is a generic answer.