Help With Grub! Installed sabayon linux, cant boot with xp or kubuntu

[AnkitGoswami 0]

I just installed Sabayon linux and I think it's great, however, now I cannot boot with kubuntu or xp. When I was installing sabayon I think it asked for all the partitions which had an OS, I listed them all but now I can see those options in the boot menu but when I select some other OS, it says something like- file not found .Can anyone tell me how to fix the boot list?

[nocom 0]

You must manually edit your Grub conf and add other OS boot param.Please read Sabayon linux Help about Grub or any other Help about ,,How to Grub,,Or find Open SuSe CD or DVD ,boot and choose repair , then choose repair Boot Manager /SuSe will repair your Grub /------not for novice