[kubuntu] grub rescue

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http://ubuntuforums.org – hi, i had xp sp two and kubuntu i deleted kubuntu partition from xp when i restarted , i got the prompt grub rescue -what i have now in my hand is xp sp3 cd and ubuntu live cd -i tried to boot from xp cd , and i failed , it did not boot ,i just saw the grub rescue prompt again -then i tried to boot from ubuntu live cd , it booted with just two options ,either try it or install it . - when i tried it , i did not see any partions when i explored the home folder. - i tried also to install it , but when getting the partitionning window , it just see the whole disk as one mas (Hardware)