I read somewhere that OpenSolaris 2009.05 was being distributed freely by Sun. I requested for one, did not get any reply from them.
Could not wait for it, so I downloaded few days back and tried to install on my multi-boot system. Unfortunately my system got stuck at "grub>" prompt. Tried installing again, Tried installing kubuntu again, nothing helped.
Today, I tried it again. Re-installing kubuntu did not help. Installing OS2008.05 again booted the system. Then I had to manually edit the grub menu config file (In solaris it is something like /rpool/boot/grub/menu.lst ).
Now I have to take care of my kubuntu installation